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green · cool

#99cfad

a light, soft green · cool · closest name: Dark Sea Green

Token name suggestion: Linen Basil

RGB
153, 207, 173
HSL
142°, 36%, 71%
CMYK
26, 0, 16, 19
Luminance
0.5442

#99cfad is a light soft green, 142° on the wheel and 72/100 on the cool side. Put black text on it (11.88:1). As text it scores 1.77:1 on white — use #3D8257 instead. Nearest name is Dark Sea Green, nearest Tailwind family is emerald.

hsl(142 36% 71%)rgb(153 207 173)Base step 400AAA inkCool

At a glance

Every number on this page in one read: what #99cfad is made of, how bright it looks, and which way it leans.

Hex
#99cfad
Hue
142°
green
Saturation
36%
soft
Lightness
71%
light
Brightness
81%
HSV value
Perceived
74%
weighted brightness
Luminance
0.5442
WCAG relative
Temperature
Cool
72/100 cool
Color family
Green
Tone
Soft
Best ink
Black
11.88:1
Closest name
Dark Sea Green
ΔE2000 6.3
Chroma
26.9
LCH, 0–130ish
OKLCH L
0.808
perceptual lightness
Tailwind
emerald
500 · ΔE 13.6
Web-safe
#99CC99
nearest of 216
Where it sits
Hue142° of 360°
Saturation36%
Lightness71%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #99cfad.

Temperature
Warm ← → Cool72% 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
Red12%
Green82%
Blue6%

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

Every format

HEX#99cfad
HEX (8-digit)#99cfadff
RGBrgb(153, 207, 173)
RGBArgba(153, 207, 173, 1)
HSLhsl(142, 36%, 71%)
HSV / HSBhsv(142, 26%, 81%)
HWBhwb(142 60% 19%)
CMYKcmyk(26%, 0%, 16%, 19%)
LABlab(78.7 -24.4 11.3)
LCHlch(78.7 26.9 155.1)
OKLCHoklch(0.808 0.074 156.7)
XYZ (D65)xyz(42.99, 54.41, 47.76)
Decimal10080173
Display P3color(display-p3 0.600 0.812 0.678)
Web-safe#99CC99

Copy-ready code

every platformclick to select
/* CSS */
color: #99cfad;
background-color: #99cfad;
/* CSS custom property */
--brand: #99cfad;
/* Tailwind (arbitrary) */
class="text-[#99cfad] bg-[#99cfad]"
/* SCSS */
$brand: #99cfad;
/* SwiftUI */
Color(red: 0.600, green: 0.812, blue: 0.678)
/* UIKit */
UIColor(red: 0.600, green: 0.812, blue: 0.678, alpha: 1)
/* Android XML */
<color name="brand">#99CFAD</color>
/* Android Compose */
Color(0xFF99CFAD)
/* Flutter */
Color(0xFF99CFAD)
/* Python / OpenCV (BGR) */
(173, 207, 153)
/* Python / PIL (RGB) */
(153, 207, 173)
/* Java AWT */
new Color(153, 207, 173)
/* .NET */
Color.FromArgb(255, 153, 207, 173)
/* OpenGL / Unity (0–1) */
(0.6000f, 0.8118f, 0.6784f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{153,207,173}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #99cfad 85%, white);
border-color: color-mix(in oklab, #99cfad 40%, transparent);
/* theme-aware in one line */
color: light-dark(#29573A, #D5EBDE);
/* relative colour syntax */
--hover: hsl(from #99cfad 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: #F5F9F7;
  --brand-100: #EBF4EF;
  --brand-200: #D3E8DB;
  --brand-300: #B3DBC2;
  --brand-400: #99cfad;
  --brand-500: #66B784;
  --brand-600: #4EA66F;
  --brand-700: #418B5C;
  --brand-800: #346F4A;
  --brand-900: #295138;
  --brand-950: #1A3323;
  --brand: #99cfad;
  --brand-ink: #000000;
  --brand-surface: #F5FAF7;
  --brand-border: #C8E5D2;
  --brand-hover: #81C499;
  --brand-pressed: #68B886;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #14241A;
    --brand-ink: #D5EBDE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F5F9F7',
        100: '#EBF4EF',
        200: '#D3E8DB',
        300: '#B3DBC2',
        400: '#99cfad',
        500: '#66B784',
        600: '#4EA66F',
        700: '#418B5C',
        800: '#346F4A',
        900: '#295138',
        950: '#1A3323',
        DEFAULT: '#99cfad',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F5F9F7,
  '100': #EBF4EF,
  '200': #D3E8DB,
  '300': #B3DBC2,
  '400': #99cfad,
  '500': #66B784,
  '600': #4EA66F,
  '700': #418B5C,
  '800': #346F4A,
  '900': #295138,
  '950': #1A3323,
);
$brand-base: #99cfad;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F5F9F7", "$type": "color" },
      "100": { "$value": "#EBF4EF", "$type": "color" },
      "200": { "$value": "#D3E8DB", "$type": "color" },
      "300": { "$value": "#B3DBC2", "$type": "color" },
      "400": { "$value": "#99cfad", "$type": "color" },
      "500": { "$value": "#66B784", "$type": "color" },
      "600": { "$value": "#4EA66F", "$type": "color" },
      "700": { "$value": "#418B5C", "$type": "color" },
      "800": { "$value": "#346F4A", "$type": "color" },
      "900": { "$value": "#295138", "$type": "color" },
      "950": { "$value": "#1A3323", "$type": "color" }
    },
    "brandInk": { "$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 #99cfad · 11.88:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.77:1
AA fail · AA large fail · AAA fail
Aa
Black text · 11.88:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #99cfad as text scores 1.77:1 on white and 11.88:1 on black.
Best tinted ink on it, if plain black or white feels flat: #29573A 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
#3D8257 · 4.64:1
AA on white−33% L
#3D8257
The quick fox
#2F6342 · 7.04:1
AAA on white−42% L
#2F6342
The quick fox
#99cfad · 11.88:1
AA on blackalready passes
#99cfad
The quick fox
#99cfad · 11.88:1
AAA on blackalready passes
#99cfad

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #4EA56E 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
#99cfad on white: 1.77:1
AA ✗ fail · AA-large · AAA
Aa
#99cfad on black: 11.88:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #99cfad as text on that neutral, and that neutral as text on #99cfad.

NeutralRatioBoth directions
White1.77:1AaAa
Slate 501.69:1AaAa
Slate 1001.61:1AaAa
Slate 2001.43:1AaAa
Slate 3001.19:1AaAa
Slate 4001.45:1AaAa
Slate 5002.69:1AaAa
Slate 6004.29:1AaAa
Slate 7005.86:1AaAa
Slate 8008.28:1AaAa
Slate 90010.10:1AaAa
Black11.88:1AaAa
Colour vision deficiency
true color
protanopia · #CEC7AB
deuteranopia · #C5C0AF
tritanopia · #90CEC5

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. #99cfad is pinned to step 400; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F5F9F7
#EBF4EF
#D3E8DB
#B3DBC2
#99cfad
#66B784
#4EA66F
#418B5C
#346F4A
#295138
#1A3323
Base = 400Lightest = 50 · #F5F9F7Darkest = 950 · #1A3323Text step on white = 800
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 0.018 156.7);
  --brand-100: oklch(0.94 0.030 156.7);
  --brand-200: oklch(0.88 0.044 156.7);
  --brand-300: oklch(0.80 0.058 156.7);
  --brand-400: oklch(0.72 0.068 156.7);
  --brand-500: oklch(0.64 0.074 156.7);
  --brand-600: oklch(0.56 0.074 156.7);
  --brand-700: oklch(0.48 0.069 156.7);
  --brand-800: oklch(0.40 0.062 156.7);
  --brand-900: oklch(0.32 0.052 156.7);
  --brand-950: oklch(0.24 0.041 156.7);
}

Colors that work with #99cfad

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#F5FAF7
Tinted page background
Border#C8E5D2
Hairlines and dividers
Muted text#4B9B68
Captions on the surface
Accent#8F3D85
Second voice, not a rival
Dark variant#29573A
Hover, pressed, headers
Light variant#EEF7F1
Selected rows, tints
Dark surface#14241A
Dark-mode background
Hover#81C499
One step down in lightness
Pressed#68B886
Two steps down
Disabled#E8F0EB
Chroma pulled out
Focus ring#A0DCB6
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 #99cfad

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

Works well for
  • Text and icons on dark surfaces
  • Charts, tags and secondary surfaces
  • Card and section backgrounds
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • 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 #29573A
Safe as a 1px border on white
No — use #4EA56E

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.

The muted chroma softens the association — it reads considered rather than loud, which suits long-form and data-heavy screens. 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
  • Weight29/100
  • 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#CF99BB
Analogous left#A0CF99
Analogous right#99CFC8
Split-complement 1#C899CF
Split-complement 2#CF99A0
Triadic 1#AD99CF
Triadic 2#CFAD99
Tetradic#99A0CF
On the wheel
Base+30°−30°+120°+240°+180°142°

#99cfad sits at 142°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red60.0%
Green81.2%
Blue67.8%
R · 0–255
153
0x99
G · 0–255
207
0xcf
B · 0–255
173
0xad

CMYK percentages

Cyan26.1%
Magenta0.0%
Yellow16.4%
Key (black)18.8%

Total ink coverage is 61%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#99cfad text on a black background

contrast 11.88:1

Card sample

#99cfad text on a white background

contrast 1.77:1

Card sample

#99cfad on grey

1.61:1

#99cfad on its own surface

1.67:1

#99cfad on its dark surface

9.16:1

CSS3 live lab

Text font color

The quick brown fox

color: #99cfad;
Background color
Panel with #99cfad background
background-color: #99cfad;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #99cfad;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(153, 207, 173, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(153, 207, 173, 0.45);
Border & gradient
Gradient panel
border: 3px solid #99cfad;
background: linear-gradient(135deg, #99cfad, #99CDCF);
Gradient text

Gradient headline

background: linear-gradient(90deg, #99cfad, #99C0CF);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #99cfad;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #99cfad;
caret-color: #99cfad;
Left rule
Pull quote or callout
border-left: 4px solid #99cfad;
Ring + tint
Selected chip
background: #EEF7F1;
box-shadow: inset 0 0 0 2px #99cfad;
Conic badge
68%
background: conic-gradient(#99cfad 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #99cfad 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(153, 207, 173, 0.5)
rgb(153 207 173 / 50%)
#99cfad80
hsl(142 36% 71% / 50%)
color-mix(in srgb, #99cfad 50%, transparent)
Alpha8-digit hexFlat on white
10%#99cfad1a#F5FAF7
20%#99cfad33#EBF5EF
40%#99cfad66#D6ECDE
60%#99cfad99#C2E2CE
80%#99cfadcc#ADD9BD

Gradients from #99cfad

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, #C3E3CE, #99cfad 45%, #29573A);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #99cfad, #84BDC5);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #99cfad, #CF99BB);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #D7ECDF 0%, #99cfad 45%, #29573A 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F5FAF7, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #C3DFBC 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #AED9D7 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #29573A 0%, transparent 65%), #99cfad;

Monochromatic scale

Palettes built from #99cfad

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.

#99cfad 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 11.88:1.

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.

#99cfad, answered

What color is #99cfad?

#99cfad is a light soft green, closest to Dark Sea Green (ΔE2000 6.3). It sits at 142° on the hue wheel with 36% saturation and 71% lightness, which reads as cool.

What is the RGB value of #99cfad?

rgb(153, 207, 173) — 153 red, 207 green and 173 blue out of 255, or 60% / 81.2% / 67.8% by channel.

What is #99cfad in HSL and HSV?

hsl(142, 36%, 71%) and hsv(142, 26%, 81%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #99cfad a light or a dark color?

It is a light color. Relative luminance is 0.5442 and perceived brightness is 74%, so black text on it reaches 11.88:1.

Should I use black or white text on #99cfad?

Black. It scores 11.88:1 against #99cfad, versus 1.77:1 for white — AAA at any size.

Is #99cfad accessible on a white background?

#99cfad on white scores 1.77:1, which fails WCAG AA at every size. Darken it to #3D8257 to reach 4.5:1, or #2F6342 for 7:1.

What is the complementary color of #99cfad?

#CF99BB sits directly opposite on the wheel. Softer options are the split-complements #C899CF and #CF99A0, which give the same contrast with far less vibration.

What colors go well with #99cfad?

For interface work: #F5FAF7 as the surface, #C8E5D2 for borders, #4B9B68 for secondary text, #8F3D85 as an accent and #29573A for hover and pressed states. For a palette, the analogous pair #A0CF99 and #99CFC8 stays calm, while #CF99BB is the loudest partner.

What is #99cfad in CMYK for printing?

cmyk(26%, 0%, 16%, 19%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #99cfad warm or cool?

Cool — it scores 72 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #99CF99; nudged cooler, #98D1C2.

Which Tailwind color is closest to #99cfad?

The emerald family — its 500 step is #10b981, ΔE2000 13.6 away. That is a visible difference, so define #99cfad as a custom token rather than reaching for the built-in.

How do I use #99cfad in Tailwind CSS?

Inline it as an arbitrary value with bg-[#99cfad] or text-[#99cfad], 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 #99cfad with 50% opacity?

rgba(153, 207, 173, 0.5), or #99cfad80 in eight-digit hex. Over white that composites to #CCE7D6; over black, #4D6857.

Is #99cfad a web-safe color?

No. The nearest web-safe colour is #99CC99, ΔE2000 4.9 away. The palette only matters for legacy displays and some email clients now.

What does the color #99cfad 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 moderate chroma the association is present but not shouted.

What gradient works with #99cfad?

The safest is same-hue elevation: linear-gradient(135deg, #C3E3CE, #99cfad 45%, #29573A). For more colour, a short hue run to #84BDC5 keeps it rich without turning muddy.

Work with #99cfad in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #99cfad at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.