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green · cool

#91eccb

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

Token name suggestion: Meadow Fern

RGB
145, 236, 203
HSL
158°, 71%, 75%
CMYK
39, 0, 14, 8
Luminance
0.7032

#91eccb is a light vivid green, 158° on the wheel and 78/100 on the cool side. Put black text on it (15.06:1). As text it scores 1.39:1 on white — use #17855D instead. Nearest name is Aqua Marine, nearest Tailwind family is teal.

hsl(158 71% 75%)rgb(145 236 203)Base step 300AAA inkCool

At a glance

Every number on this page in one read: what #91eccb is made of, how bright it looks, and which way it leans.

Hex
#91eccb
Hue
158°
green
Saturation
71%
vivid
Lightness
75%
light
Brightness
93%
HSV value
Perceived
82%
weighted brightness
Luminance
0.7032
WCAG relative
Temperature
Cool
78/100 cool
Color family
Green
Tone
Vivid
Best ink
Black
15.06:1
Closest name
Aqua Marine
ΔE2000 5
Chroma
35.3
LCH, 0–130ish
OKLCH L
0.877
perceptual lightness
Tailwind
teal
500 · ΔE 15.5
Web-safe
#99FFCC
nearest of 216
Where it sits
Hue158° of 360°
Saturation71%
Lightness75%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #91eccb.

Temperature
Warm ← → Cool78% 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
Red9%
Green85%
Blue6%

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

Every format

HEX#91eccb
HEX (8-digit)#91eccbff
RGBrgb(145, 236, 203)
RGBArgba(145, 236, 203, 1)
HSLhsl(158, 71%, 75%)
HSV / HSBhsv(158, 39%, 93%)
HWBhwb(158 57% 7%)
CMYKcmyk(39%, 0%, 14%, 8%)
LABlab(87.2 -34.5 7.5)
LCHlch(87.2 35.3 167.8)
OKLCHoklch(0.877 0.100 168.9)
XYZ (D65)xyz(52.45, 70.32, 67.30)
Decimal9563339
Display P3color(display-p3 0.569 0.925 0.796)
Web-safe#99FFCC

Copy-ready code

every platformclick to select
/* CSS */
color: #91eccb;
background-color: #91eccb;
/* CSS custom property */
--brand: #91eccb;
/* Tailwind (arbitrary) */
class="text-[#91eccb] bg-[#91eccb]"
/* SCSS */
$brand: #91eccb;
/* SwiftUI */
Color(red: 0.569, green: 0.925, blue: 0.796)
/* UIKit */
UIColor(red: 0.569, green: 0.925, blue: 0.796, alpha: 1)
/* Android XML */
<color name="brand">#91ECCB</color>
/* Android Compose */
Color(0xFF91ECCB)
/* Flutter */
Color(0xFF91ECCB)
/* Python / OpenCV (BGR) */
(203, 236, 145)
/* Python / PIL (RGB) */
(145, 236, 203)
/* Java AWT */
new Color(145, 236, 203)
/* .NET */
Color.FromArgb(255, 145, 236, 203)
/* OpenGL / Unity (0–1) */
(0.5686f, 0.9255f, 0.7961f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{145,236,203}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #91eccb 85%, white);
border-color: color-mix(in oklab, #91eccb 40%, transparent);
/* theme-aware in one line */
color: light-dark(#136D4C, #D3EEE4);
/* relative colour syntax */
--hover: hsl(from #91eccb 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: #E7F8F2;
  --brand-200: #C9F2E3;
  --brand-300: #91eccb;
  --brand-400: #70E6BB;
  --brand-500: #40DEA4;
  --brand-600: #24D192;
  --brand-700: #1EAE7A;
  --brand-800: #188B61;
  --brand-900: #166548;
  --brand-950: #0D3F2D;
  --brand: #91eccb;
  --brand-ink: #000000;
  --brand-surface: #F4FAF8;
  --brand-border: #C0EDDC;
  --brand-hover: #73E7BD;
  --brand-pressed: #54E1AE;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #14241E;
    --brand-ink: #D3EEE4;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F3FCF8',
        100: '#E7F8F2',
        200: '#C9F2E3',
        300: '#91eccb',
        400: '#70E6BB',
        500: '#40DEA4',
        600: '#24D192',
        700: '#1EAE7A',
        800: '#188B61',
        900: '#166548',
        950: '#0D3F2D',
        DEFAULT: '#91eccb',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F3FCF8,
  '100': #E7F8F2,
  '200': #C9F2E3,
  '300': #91eccb,
  '400': #70E6BB,
  '500': #40DEA4,
  '600': #24D192,
  '700': #1EAE7A,
  '800': #188B61,
  '900': #166548,
  '950': #0D3F2D,
);
$brand-base: #91eccb;
$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": "#E7F8F2", "$type": "color" },
      "200": { "$value": "#C9F2E3", "$type": "color" },
      "300": { "$value": "#91eccb", "$type": "color" },
      "400": { "$value": "#70E6BB", "$type": "color" },
      "500": { "$value": "#40DEA4", "$type": "color" },
      "600": { "$value": "#24D192", "$type": "color" },
      "700": { "$value": "#1EAE7A", "$type": "color" },
      "800": { "$value": "#188B61", "$type": "color" },
      "900": { "$value": "#166548", "$type": "color" },
      "950": { "$value": "#0D3F2D", "$type": "color" }
    },
    "brandInk": { "$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 #91eccb · 15.06:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.39:1
AA fail · AA large fail · AAA fail
Aa
Black text · 15.06:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #91eccb as text scores 1.39:1 on white and 15.06:1 on black.
Best tinted ink on it, if plain black or white feels flat: #136D4C at 4.54:1.

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
#17855D · 4.62:1
AA on white−44% L
#17855D
The quick fox
#116345 · 7.26:1
AAA on white−52% L
#116345
The quick fox
#91eccb · 15.06:1
AA on blackalready passes
#91eccb
The quick fox
#91eccb · 15.06:1
AAA on blackalready passes
#91eccb

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #1DA876 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
#91eccb on white: 1.39:1
AA ✗ fail · AA-large · AAA
Aa
#91eccb on black: 15.06:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #91eccb as text on that neutral, and that neutral as text on #91eccb.

NeutralRatioBoth directions
White1.39:1AaAa
Slate 501.33:1AaAa
Slate 1001.27:1AaAa
Slate 2001.13:1AaAa
Slate 3001.07:1AaAa
Slate 4001.84:1AaAa
Slate 5003.41:1AaAa
Slate 6005.44:1AaAa
Slate 7007.43:1AaAa
Slate 80010.49:1AaAa
Slate 90012.81:1AaAa
Black15.06:1AaAa
Colour vision deficiency
true color
protanopia · #E8E1C9
deuteranopia · #D8D6CD
tritanopia · #77EDE2

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. #91eccb 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
#E7F8F2
#C9F2E3
#91eccb
#70E6BB
#40DEA4
#24D192
#1EAE7A
#188B61
#166548
#0D3F2D
Base = 300Lightest = 50 · #F3FCF8Darkest = 950 · #0D3F2DText 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 0.025 168.9);
  --brand-100: oklch(0.94 0.040 168.9);
  --brand-200: oklch(0.88 0.060 168.9);
  --brand-300: oklch(0.80 0.078 168.9);
  --brand-400: oklch(0.72 0.092 168.9);
  --brand-500: oklch(0.64 0.100 168.9);
  --brand-600: oklch(0.56 0.100 168.9);
  --brand-700: oklch(0.48 0.094 168.9);
  --brand-800: oklch(0.40 0.084 168.9);
  --brand-900: oklch(0.32 0.070 168.9);
  --brand-950: oklch(0.24 0.055 168.9);
}

Colors that work with #91eccb

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#C0EDDC
Hairlines and dividers
Muted text#4B9B7E
Captions on the surface
Accent#B31977
Second voice, not a rival
Dark variant#136D4C
Hover, pressed, headers
Light variant#E9FBF5
Selected rows, tints
Dark surface#14241E
Dark-mode background
Hover#73E7BD
One step down in lightness
Pressed#54E1AE
Two steps down
Disabled#F3F7F5
Chroma pulled out
Focus ring#9DF4D5
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 #91eccb

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 #136D4C
Safe as a 1px border on white
No — use #1DA876

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.

This is a confident chroma: strong enough to lead a brand, restrained enough to live in an interface all day. 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
  • FormalityMedium
  • EnergyMedium-high
  • Weight25/100
  • 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#EC91B2
Analogous left#91EC9D
Analogous right#91E0EC
Split-complement 1#EC91E0
Split-complement 2#EC9D91
Triadic 1#CB91EC
Triadic 2#ECCB91
Tetradic#9D91EC
On the wheel
Base+30°−30°+120°+240°+180°158°

#91eccb sits at 158°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red56.9%
Green92.5%
Blue79.6%
R · 0–255
145
0x91
G · 0–255
236
0xec
B · 0–255
203
0xcb

CMYK percentages

Cyan38.6%
Magenta0.0%
Yellow14.0%
Key (black)7.5%

Total ink coverage is 60%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#91eccb text on a black background

contrast 15.06:1

Card sample

#91eccb text on a white background

contrast 1.39:1

Card sample

#91eccb on grey

1.27:1

#91eccb on its own surface

1.32:1

#91eccb on its dark surface

11.58:1

CSS3 live lab

Text font color

The quick brown fox

color: #91eccb;
Background color
Panel with #91eccb background
background-color: #91eccb;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #91eccb;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(145, 236, 203, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(145, 236, 203, 0.45);
Border & gradient
Gradient panel
border: 3px solid #91eccb;
background: linear-gradient(135deg, #91eccb, #91D0EC);
Gradient text

Gradient headline

background: linear-gradient(90deg, #91eccb, #91BAEC);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #91eccb;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #91eccb;
caret-color: #91eccb;
Left rule
Pull quote or callout
border-left: 4px solid #91eccb;
Ring + tint
Selected chip
background: #E9FBF5;
box-shadow: inset 0 0 0 2px #91eccb;
Conic badge
68%
background: conic-gradient(#91eccb 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #91eccb 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(145, 236, 203, 0.5)
rgb(145 236 203 / 50%)
#91eccb80
hsl(158 71% 75% / 50%)
color-mix(in srgb, #91eccb 50%, transparent)
Alpha8-digit hexFlat on white
10%#91eccb1a#F4FDFA
20%#91eccb33#E9FBF5
40%#91eccb66#D3F7EA
60%#91eccb99#BDF4E0
80%#91eccbcc#A7F0D5

Gradients from #91eccb

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, #C5F5E4, #91eccb 45%, #136D4C);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #91eccb, #77BCE7);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #91eccb, #EC91B2);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #DFFAF0 0%, #91eccb 45%, #136D4C 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%, #BCF3BF 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #ABE1F0 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #136D4C 0%, transparent 65%), #91eccb;

Monochromatic scale

Palettes built from #91eccb

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.

#91eccb 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

Converts to four-color process without much drama. Proof it anyway.

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 15.06:1.

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.

#91eccb, answered

What color is #91eccb?

#91eccb is a light vivid green, closest to Aqua Marine (ΔE2000 5). It sits at 158° on the hue wheel with 71% saturation and 75% lightness, which reads as cool.

What is the RGB value of #91eccb?

rgb(145, 236, 203) — 145 red, 236 green and 203 blue out of 255, or 56.9% / 92.5% / 79.6% by channel.

What is #91eccb in HSL and HSV?

hsl(158, 71%, 75%) and hsv(158, 39%, 93%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #91eccb a light or a dark color?

It is a light color. Relative luminance is 0.7032 and perceived brightness is 82%, so black text on it reaches 15.06:1.

Should I use black or white text on #91eccb?

Black. It scores 15.06:1 against #91eccb, versus 1.39:1 for white — AAA at any size.

Is #91eccb accessible on a white background?

#91eccb on white scores 1.39:1, which fails WCAG AA at every size. Darken it to #17855D to reach 4.5:1, or #116345 for 7:1.

What is the complementary color of #91eccb?

#EC91B2 sits directly opposite on the wheel. Softer options are the split-complements #EC91E0 and #EC9D91, which give the same contrast with far less vibration.

What colors go well with #91eccb?

For interface work: #F4FAF8 as the surface, #C0EDDC for borders, #4B9B7E for secondary text, #B31977 as an accent and #136D4C for hover and pressed states. For a palette, the analogous pair #91EC9D and #91E0EC stays calm, while #EC91B2 is the loudest partner.

What is #91eccb in CMYK for printing?

cmyk(39%, 0%, 14%, 8%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #91eccb warm or cool?

Cool — it scores 78 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #91ECAA; nudged cooler, #90EDED.

Which Tailwind color is closest to #91eccb?

The teal family — its 500 step is #14b8a6, ΔE2000 15.5 away. That is a visible difference, so define #91eccb as a custom token rather than reaching for the built-in.

How do I use #91eccb in Tailwind CSS?

Inline it as an arbitrary value with bg-[#91eccb] or text-[#91eccb], 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 #91eccb with 50% opacity?

rgba(145, 236, 203, 0.5), or #91eccb80 in eight-digit hex. Over white that composites to #C8F6E5; over black, #497666.

Is #91eccb a web-safe color?

No. The nearest web-safe colour is #99FFCC, ΔE2000 5.7 away. The palette only matters for legacy displays and some email clients now.

What does the color #91eccb 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 #91eccb?

The safest is same-hue elevation: linear-gradient(135deg, #C5F5E4, #91eccb 45%, #136D4C). For more colour, a short hue run to #77BCE7 keeps it rich without turning muddy.

Work with #91eccb in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #91eccb at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.