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green · cool

#a3f2cd

a light, electric green · cool · closest name: Aqua Marine

Token name suggestion: Linen Jade

RGB
163, 242, 205
HSL
152°, 75%, 79%
CMYK
33, 0, 15, 5
Luminance
0.7570

#a3f2cd is a light electric green, 152° on the wheel and 76/100 on the cool side. Put black text on it (16.14:1). As text it scores 1.30:1 on white — use #138851 instead. Nearest name is Aqua Marine, nearest Tailwind family is emerald.

hsl(152 75% 79%)rgb(163 242 205)Base step 300AAA inkCool

At a glance

Every number on this page in one read: what #a3f2cd is made of, how bright it looks, and which way it leans.

Hex
#a3f2cd
Hue
152°
green
Saturation
75%
electric
Lightness
79%
light
Brightness
95%
HSV value
Perceived
85%
weighted brightness
Luminance
0.7570
WCAG relative
Temperature
Cool
76/100 cool
Color family
Green
Tone
Electric
Best ink
Black
16.14:1
Closest name
Aqua Marine
ΔE2000 5.4
Chroma
33.5
LCH, 0–130ish
OKLCH L
0.900
perceptual lightness
Tailwind
emerald
500 · ΔE 17.7
Web-safe
#99FFCC
nearest of 216
Where it sits
Hue152° of 360°
Saturation75%
Lightness79%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #a3f2cd.

Temperature
Warm ← → Cool76% cool

Reads cool. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Luminance by channel
Red10%
Green84%
Blue6%

Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.

Every format

HEX#a3f2cd
HEX (8-digit)#a3f2cdff
RGBrgb(163, 242, 205)
RGBArgba(163, 242, 205, 1)
HSLhsl(152, 75%, 79%)
HSV / HSBhsv(152, 33%, 95%)
HWBhwb(152 64% 5%)
CMYKcmyk(33%, 0%, 15%, 5%)
LABlab(89.7 -31.9 10.2)
LCHlch(89.7 33.5 162.2)
OKLCHoklch(0.900 0.093 163.6)
XYZ (D65)xyz(57.87, 75.70, 69.31)
Decimal10744525
Display P3color(display-p3 0.639 0.949 0.804)
Web-safe#99FFCC

Copy-ready code

every platformclick to select
/* CSS */
color: #a3f2cd;
background-color: #a3f2cd;
/* CSS custom property */
--brand: #a3f2cd;
/* Tailwind (arbitrary) */
class="text-[#a3f2cd] bg-[#a3f2cd]"
/* SCSS */
$brand: #a3f2cd;
/* SwiftUI */
Color(red: 0.639, green: 0.949, blue: 0.804)
/* UIKit */
UIColor(red: 0.639, green: 0.949, blue: 0.804, alpha: 1)
/* Android XML */
<color name="brand">#A3F2CD</color>
/* Android Compose */
Color(0xFFA3F2CD)
/* Flutter */
Color(0xFFA3F2CD)
/* Python / OpenCV (BGR) */
(205, 242, 163)
/* Python / PIL (RGB) */
(163, 242, 205)
/* Java AWT */
new Color(163, 242, 205)
/* .NET */
Color.FromArgb(255, 163, 242, 205)
/* OpenGL / Unity (0–1) */
(0.6392f, 0.9490f, 0.8039f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{163,242,205}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #a3f2cd 85%, white);
border-color: color-mix(in oklab, #a3f2cd 40%, transparent);
/* theme-aware in one line */
color: light-dark(#107043, #D3EEE1);
/* relative colour syntax */
--hover: hsl(from #a3f2cd h s calc(l - 7));

Design tokens

The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.

css custom propertiesclick to select
:root {
  --brand-50: #F3FCF8;
  --brand-100: #E7F9F0;
  --brand-200: #C8F4DF;
  --brand-300: #a3f2cd;
  --brand-400: #6CEAAF;
  --brand-500: #3AE394;
  --brand-600: #1ED680;
  --brand-700: #19B36B;
  --brand-800: #148F55;
  --brand-900: #136840;
  --brand-950: #0C4128;
  --brand: #a3f2cd;
  --brand-ink: #000000;
  --brand-surface: #F4FAF8;
  --brand-border: #C0EDD8;
  --brand-hover: #84EEBC;
  --brand-pressed: #64E9AB;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #14241D;
    --brand-ink: #D3EEE1;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F3FCF8',
        100: '#E7F9F0',
        200: '#C8F4DF',
        300: '#a3f2cd',
        400: '#6CEAAF',
        500: '#3AE394',
        600: '#1ED680',
        700: '#19B36B',
        800: '#148F55',
        900: '#136840',
        950: '#0C4128',
        DEFAULT: '#a3f2cd',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F3FCF8,
  '100': #E7F9F0,
  '200': #C8F4DF,
  '300': #a3f2cd,
  '400': #6CEAAF,
  '500': #3AE394,
  '600': #1ED680,
  '700': #19B36B,
  '800': #148F55,
  '900': #136840,
  '950': #0C4128,
);
$brand-base: #a3f2cd;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F3FCF8", "$type": "color" },
      "100": { "$value": "#E7F9F0", "$type": "color" },
      "200": { "$value": "#C8F4DF", "$type": "color" },
      "300": { "$value": "#a3f2cd", "$type": "color" },
      "400": { "$value": "#6CEAAF", "$type": "color" },
      "500": { "$value": "#3AE394", "$type": "color" },
      "600": { "$value": "#1ED680", "$type": "color" },
      "700": { "$value": "#19B36B", "$type": "color" },
      "800": { "$value": "#148F55", "$type": "color" },
      "900": { "$value": "#136840", "$type": "color" },
      "950": { "$value": "#0C4128", "$type": "color" }
    },
    "brandInk": { "$value": "#000000", "$type": "color" }
  }
}

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#000000 on #a3f2cd · 16.14:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.30:1
AA fail · AA large fail · AAA fail
Aa
Black text · 16.14:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #a3f2cd as text scores 1.30:1 on white and 16.14:1 on black.
Best tinted ink on it, if plain black or white feels flat: #107043 at 4.72:1.

Make it accessible

A contrast checker tells you that you failed. This tells you what to ship instead — same hue, same saturation, lightness moved only as far as WCAG demands.

The quick fox
#138851 · 4.50:1
AA on white−49% L
#138851
The quick fox
#0E643C · 7.22:1
AAA on white−57% L
#0E643C
The quick fox
#a3f2cd · 16.14:1
AA on blackalready passes
#a3f2cd
The quick fox
#a3f2cd · 16.14:1
AAA on blackalready passes
#a3f2cd

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #18A764 is enough for headings on white. Non-text elements such as icons, chart strokes and focus rings also sit at 3:1 under WCAG 2.2 (1.4.11).

Accessibility — WCAG contrast

Aa
#a3f2cd on white: 1.30:1
AA ✗ fail · AA-large · AAA
Aa
#a3f2cd on black: 16.14:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #a3f2cd as text on that neutral, and that neutral as text on #a3f2cd.

NeutralRatioBoth directions
White1.30:1AaAa
Slate 501.24:1AaAa
Slate 1001.19:1AaAa
Slate 2001.06:1AaAa
Slate 3001.14:1AaAa
Slate 4001.97:1AaAa
Slate 5003.66:1AaAa
Slate 6005.82:1AaAa
Slate 7007.96:1AaAa
Slate 80011.24:1AaAa
Slate 90013.72:1AaAa
Black16.14:1AaAa
Colour vision deficiency
true color
protanopia · #EFE7CB
deuteranopia · #E2DECF
tritanopia · #91F2E7

Roughly one man in twelve has some form of colour vision deficiency. If any of the three panels above is hard to tell apart from a neighbouring colour in your palette, add a shape, an icon or a label so the meaning does not rest on hue alone.

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #a3f2cd is pinned to step 300; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F3FCF8
#E7F9F0
#C8F4DF
#a3f2cd
#6CEAAF
#3AE394
#1ED680
#19B36B
#148F55
#136840
#0C4128
Base = 300Lightest = 50 · #F3FCF8Darkest = 950 · #0C4128Text step on white = 900
Perceptual ramp — OKLCH

The same eleven steps expressed in OKLCH, where equal lightness numbers actually look equally spaced. HSL ramps go muddy in the yellows and washed out in the blues; this one does not. Modern browsers render it natively — the hex ramp above is the fallback.

50100200300400500600700800900950
oklch tokensclick to select
:root {
  --brand-50: oklch(0.97 0.023 163.6);
  --brand-100: oklch(0.94 0.037 163.6);
  --brand-200: oklch(0.88 0.056 163.6);
  --brand-300: oklch(0.80 0.073 163.6);
  --brand-400: oklch(0.72 0.086 163.6);
  --brand-500: oklch(0.64 0.093 163.6);
  --brand-600: oklch(0.56 0.093 163.6);
  --brand-700: oklch(0.48 0.088 163.6);
  --brand-800: oklch(0.40 0.078 163.6);
  --brand-900: oklch(0.32 0.065 163.6);
  --brand-950: oklch(0.24 0.051 163.6);
}

Colors that work with #a3f2cd

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#000000
Black wins here
Surface#F4FAF8
Tinted page background
Border#C0EDD8
Hairlines and dividers
Muted text#4B9B75
Captions on the surface
Accent#B7158A
Second voice, not a rival
Dark variant#107043
Hover, pressed, headers
Light variant#E9FCF3
Selected rows, tints
Dark surface#14241D
Dark-mode background
Hover#84EEBC
One step down in lightness
Pressed#64E9AB
Two steps down
Disabled#F3F7F5
Chroma pulled out
Focus ring#B1F9D7
Offset from the fill so it reads
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

In real components

The same eight roles, wired into the interface patterns you will actually build with them. Every state below is a computed value, not a mock-up.

Buttons and states
Save changesHoverPressedDisabled
OutlineSubtleLinkFocused
Form field
you@company.com

Focus ring uses the light variant so the field still reads as one shape.

Send me product updates
Notice
Your export is ready

The file stays available for seven days. Download it before it expires.

NewBetaDraft
Data
Storage used68%
Acme LtdActive
NorthwindTrial
GlobexActive

How to use #a3f2cd

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Card and section backgrounds
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • White text placed on it
  • Status meaning — pair it with an icon or label, never colour alone
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
Not as text
Safe as a fill behind white type
No — use #107043
Safe as a 1px border on white
No — use #18A764

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

safegrowingnaturalpermissive

Green means go, well, and grown. It carries finance, sustainability and health with almost no explanation needed.

At this chroma the association is amplified — it will dominate anything placed beside it, so give it space and use it sparingly. The lightness keeps it airy and approachable.

Worth knowing

Red/green pairs are the most common colour-blindness failure — never let the two carry meaning alone.

Reads as
  • FormalityLow
  • EnergyHigh
  • Weight21/100
  • TemperatureCool
  • ApproachabilityReserved

Colour associations are cultural and vary by market. Treat these as a starting point for a conversation with your audience, not a finding about them.

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#F2A3C8
Analogous left#A3F2A5
Analogous right#A3EFF2
Split-complement 1#F2A3EF
Split-complement 2#F2A5A3
Triadic 1#CDA3F2
Triadic 2#F2CDA3
Tetradic#A5A3F2
On the wheel
Base+30°−30°+120°+240°+180°152°

#a3f2cd sits at 152°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red63.9%
Green94.9%
Blue80.4%
R · 0–255
163
0xa3
G · 0–255
242
0xf2
B · 0–255
205
0xcd

CMYK percentages

Cyan32.6%
Magenta0.0%
Yellow15.3%
Key (black)5.1%

Total ink coverage is 53%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#a3f2cd text on a black background

contrast 16.14:1

Card sample

#a3f2cd text on a white background

contrast 1.30:1

Card sample

#a3f2cd on grey

1.19:1

#a3f2cd on its own surface

1.23:1

#a3f2cd on its dark surface

12.42:1

CSS3 live lab

Text font color

The quick brown fox

color: #a3f2cd;
Background color
Panel with #a3f2cd background
background-color: #a3f2cd;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #a3f2cd;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(163, 242, 205, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(163, 242, 205, 0.45);
Border & gradient
Gradient panel
border: 3px solid #a3f2cd;
background: linear-gradient(135deg, #a3f2cd, #A3E2F2);
Gradient text

Gradient headline

background: linear-gradient(90deg, #a3f2cd, #A3CFF2);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #a3f2cd;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #a3f2cd;
caret-color: #a3f2cd;
Left rule
Pull quote or callout
border-left: 4px solid #a3f2cd;
Ring + tint
Selected chip
background: #E9FCF3;
box-shadow: inset 0 0 0 2px #a3f2cd;
Conic badge
68%
background: conic-gradient(#a3f2cd 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #a3f2cd over white; the bottom row is the same alpha over a checkerboard, so you can see what survives on a photo or a video.

Bottom row of hexes is the flattened result over white — use those when a design tool refuses transparency, or when you need a solid fallback.

alpha in every syntaxclick to select
rgba(163, 242, 205, 0.5)
rgb(163 242 205 / 50%)
#a3f2cd80
hsl(152 75% 79% / 50%)
color-mix(in srgb, #a3f2cd 50%, transparent)
Alpha8-digit hexFlat on white
10%#a3f2cd1a#F6FEFA
20%#a3f2cd33#EDFCF5
40%#a3f2cd66#DAFAEB
60%#a3f2cd99#C8F7E1
80%#a3f2cdcc#B5F5D7

Gradients from #a3f2cd

Six recipes, each built from this hex and shown with the exact CSS that produced it.

Elevation
Same hue, three lightnesses — safe anywhere
background: linear-gradient(135deg, #D9FAEA, #a3f2cd 45%, #107043);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #a3f2cd, #88D1EE);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #a3f2cd, #F2A3C8);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #F2FDF8 0%, #a3f2cd 45%, #107043 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4FAF8, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #D2F8D0 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #BEEFF6 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #107043 0%, transparent 65%), #a3f2cd;

Monochromatic scale

Palettes built from #a3f2cd

Shades — darker

Tints — lighter

Tones — desaturated

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#a3f2cd in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
SustainabilityFinanceHealth and wellnessAgriculture
Common UI roles
SurfacesBadgesHighlightsEmpty states
Print note

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

On screens

Holds up across typical panel gamma. Still worth checking on an uncalibrated laptop, where mid-tones shift most.

In dark mode

Usable as-is on a dark surface at 16.14:1.

Explore nearby colors

Small, deliberate steps away from this hex — useful when you are hunting for the version of a colour that finally feels right.

#a3f2cd, answered

What color is #a3f2cd?

#a3f2cd is a light electric green, closest to Aqua Marine (ΔE2000 5.4). It sits at 152° on the hue wheel with 75% saturation and 79% lightness, which reads as cool.

What is the RGB value of #a3f2cd?

rgb(163, 242, 205) — 163 red, 242 green and 205 blue out of 255, or 63.9% / 94.9% / 80.4% by channel.

What is #a3f2cd in HSL and HSV?

hsl(152, 75%, 79%) and hsv(152, 33%, 95%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #a3f2cd a light or a dark color?

It is a light color. Relative luminance is 0.7570 and perceived brightness is 85%, so black text on it reaches 16.14:1.

Should I use black or white text on #a3f2cd?

Black. It scores 16.14:1 against #a3f2cd, versus 1.30:1 for white — AAA at any size.

Is #a3f2cd accessible on a white background?

#a3f2cd on white scores 1.30:1, which fails WCAG AA at every size. Darken it to #138851 to reach 4.5:1, or #0E643C for 7:1.

What is the complementary color of #a3f2cd?

#F2A3C8 sits directly opposite on the wheel. Softer options are the split-complements #F2A3EF and #F2A5A3, which give the same contrast with far less vibration.

What colors go well with #a3f2cd?

For interface work: #F4FAF8 as the surface, #C0EDD8 for borders, #4B9B75 for secondary text, #B7158A as an accent and #107043 for hover and pressed states. For a palette, the analogous pair #A3F2A5 and #A3EFF2 stays calm, while #F2A3C8 is the loudest partner.

What is #a3f2cd in CMYK for printing?

cmyk(33%, 0%, 15%, 5%). This is a screen-to-ink approximation — a color this saturated sits outside most CMYK gamuts and will print duller than it looks here.

Is #a3f2cd warm or cool?

Cool — it scores 76 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #A3F2B0; nudged cooler, #A2F3EB.

Which Tailwind color is closest to #a3f2cd?

The emerald family — its 500 step is #10b981, ΔE2000 17.7 away. That is a visible difference, so define #a3f2cd as a custom token rather than reaching for the built-in.

How do I use #a3f2cd in Tailwind CSS?

Inline it as an arbitrary value with bg-[#a3f2cd] or text-[#a3f2cd], or register the whole ramp under theme.extend.colors.brand so you get bg-brand-500 and friends. The generated 50–950 scale on this page is ready to paste into your config.

What is #a3f2cd with 50% opacity?

rgba(163, 242, 205, 0.5), or #a3f2cd80 in eight-digit hex. Over white that composites to #D1F9E6; over black, #527967.

Is #a3f2cd a web-safe color?

No. The nearest web-safe colour is #99FFCC, ΔE2000 4.3 away. The palette only matters for legacy displays and some email clients now.

What does the color #a3f2cd mean?

As a green, it reads safe, growing, natural. Green means go, well, and grown. It carries finance, sustainability and health with almost no explanation needed. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #a3f2cd?

The safest is same-hue elevation: linear-gradient(135deg, #D9FAEA, #a3f2cd 45%, #107043). For more colour, a short hue run to #88D1EE keeps it rich without turning muddy.

Work with #a3f2cd in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #a3f2cd at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.