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green · cool

#90cf9f

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

Token name suggestion: Meadow Basil

RGB
144, 207, 159
HSL
134°, 40%, 69%
CMYK
30, 0, 23, 19
Luminance
0.5306

#90cf9f is a light soft green, 134° on the wheel and 68/100 on the cool side. Put black text on it (11.61:1). As text it scores 1.81:1 on white — use #39834A instead. Nearest name is Dark Sea Green, nearest Tailwind family is emerald.

hsl(134 40% 69%)rgb(144 207 159)Base step 400AAA inkCool

At a glance

Every number on this page in one read: what #90cf9f is made of, how bright it looks, and which way it leans.

Hex
#90cf9f
Hue
134°
green
Saturation
40%
soft
Lightness
69%
light
Brightness
81%
HSV value
Perceived
73%
weighted brightness
Luminance
0.5306
WCAG relative
Temperature
Cool
68/100 cool
Color family
Green
Tone
Soft
Best ink
Black
11.61:1
Closest name
Dark Sea Green
ΔE2000 5.2
Chroma
34.6
LCH, 0–130ish
OKLCH L
0.799
perceptual lightness
Tailwind
emerald
500 · ΔE 11.8
Web-safe
#99CC99
nearest of 216
Where it sits
Hue134° of 360°
Saturation40%
Lightness69%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #90cf9f.

Temperature
Warm ← → Cool68% 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
Red11%
Green84%
Blue5%

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

Every format

HEX#90cf9f
HEX (8-digit)#90cf9fff
RGBrgb(144, 207, 159)
RGBArgba(144, 207, 159, 1)
HSLhsl(134, 40%, 69%)
HSV / HSBhsv(134, 30%, 81%)
HWBhwb(134 56% 19%)
CMYKcmyk(30%, 0%, 23%, 19%)
LABlab(77.9 -29.9 17.6)
LCHlch(77.9 34.6 149.5)
OKLCHoklch(0.799 0.093 151.3)
XYZ (D65)xyz(40.07, 53.06, 40.92)
Decimal9490335
Display P3color(display-p3 0.565 0.812 0.624)
Web-safe#99CC99

Copy-ready code

every platformclick to select
/* CSS */
color: #90cf9f;
background-color: #90cf9f;
/* CSS custom property */
--brand: #90cf9f;
/* Tailwind (arbitrary) */
class="text-[#90cf9f] bg-[#90cf9f]"
/* SCSS */
$brand: #90cf9f;
/* SwiftUI */
Color(red: 0.565, green: 0.812, blue: 0.624)
/* UIKit */
UIColor(red: 0.565, green: 0.812, blue: 0.624, alpha: 1)
/* Android XML */
<color name="brand">#90CF9F</color>
/* Android Compose */
Color(0xFF90CF9F)
/* Flutter */
Color(0xFF90CF9F)
/* Python / OpenCV (BGR) */
(159, 207, 144)
/* Python / PIL (RGB) */
(144, 207, 159)
/* Java AWT */
new Color(144, 207, 159)
/* .NET */
Color.FromArgb(255, 144, 207, 159)
/* OpenGL / Unity (0–1) */
(0.5647f, 0.8118f, 0.6235f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{144,207,159}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #90cf9f 85%, white);
border-color: color-mix(in oklab, #90cf9f 40%, transparent);
/* theme-aware in one line */
color: light-dark(#275933, #D4EDDA);
/* relative colour syntax */
--hover: hsl(from #90cf9f 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: #F5FAF6;
  --brand-100: #EBF4ED;
  --brand-200: #D2E9D8;
  --brand-300: #B1DDBB;
  --brand-400: #90cf9f;
  --brand-500: #62BB78;
  --brand-600: #4AAB61;
  --brand-700: #3E8E51;
  --brand-800: #317241;
  --brand-900: #275332;
  --brand-950: #18341F;
  --brand: #90cf9f;
  --brand-ink: #000000;
  --brand-surface: #F4FAF6;
  --brand-border: #C6E6CE;
  --brand-hover: #77C489;
  --brand-pressed: #5EB974;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #142418;
    --brand-ink: #D4EDDA;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F5FAF6',
        100: '#EBF4ED',
        200: '#D2E9D8',
        300: '#B1DDBB',
        400: '#90cf9f',
        500: '#62BB78',
        600: '#4AAB61',
        700: '#3E8E51',
        800: '#317241',
        900: '#275332',
        950: '#18341F',
        DEFAULT: '#90cf9f',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F5FAF6,
  '100': #EBF4ED,
  '200': #D2E9D8,
  '300': #B1DDBB,
  '400': #90cf9f,
  '500': #62BB78,
  '600': #4AAB61,
  '700': #3E8E51,
  '800': #317241,
  '900': #275332,
  '950': #18341F,
);
$brand-base: #90cf9f;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F5FAF6", "$type": "color" },
      "100": { "$value": "#EBF4ED", "$type": "color" },
      "200": { "$value": "#D2E9D8", "$type": "color" },
      "300": { "$value": "#B1DDBB", "$type": "color" },
      "400": { "$value": "#90cf9f", "$type": "color" },
      "500": { "$value": "#62BB78", "$type": "color" },
      "600": { "$value": "#4AAB61", "$type": "color" },
      "700": { "$value": "#3E8E51", "$type": "color" },
      "800": { "$value": "#317241", "$type": "color" },
      "900": { "$value": "#275332", "$type": "color" },
      "950": { "$value": "#18341F", "$type": "color" }
    },
    "brandInk": { "$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 #90cf9f · 11.61:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.81:1
AA fail · AA large fail · AAA fail
Aa
Black text · 11.61:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #90cf9f as text scores 1.81:1 on white and 11.61:1 on black.
Best tinted ink on it, if plain black or white feels flat: #275933 at 4.53:1.

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
#39834A · 4.65:1
AA on white−32% L
#39834A
The quick fox
#2B6338 · 7.13:1
AAA on white−41% L
#2B6338
The quick fox
#90cf9f · 11.61:1
AA on blackalready passes
#90cf9f
The quick fox
#90cf9f · 11.61:1
AAA on blackalready passes
#90cf9f

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #48A75F 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
#90cf9f on white: 1.81:1
AA ✗ fail · AA-large · AAA
Aa
#90cf9f on black: 11.61:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #90cf9f as text on that neutral, and that neutral as text on #90cf9f.

NeutralRatioBoth directions
White1.81:1AaAa
Slate 501.73:1AaAa
Slate 1001.65:1AaAa
Slate 2001.47:1AaAa
Slate 3001.22:1AaAa
Slate 4001.42:1AaAa
Slate 5002.63:1AaAa
Slate 6004.19:1AaAa
Slate 7005.73:1AaAa
Slate 8008.09:1AaAa
Slate 9009.87:1AaAa
Black11.61:1AaAa
Colour vision deficiency
true color
protanopia · #D0C59C
deuteranopia · #C5BEA2
tritanopia · #86CDC2

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. #90cf9f 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.

#F5FAF6
#EBF4ED
#D2E9D8
#B1DDBB
#90cf9f
#62BB78
#4AAB61
#3E8E51
#317241
#275332
#18341F
Base = 400Lightest = 50 · #F5FAF6Darkest = 950 · #18341FText 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 0.023 151.3);
  --brand-100: oklch(0.94 0.037 151.3);
  --brand-200: oklch(0.88 0.056 151.3);
  --brand-300: oklch(0.80 0.073 151.3);
  --brand-400: oklch(0.72 0.086 151.3);
  --brand-500: oklch(0.64 0.093 151.3);
  --brand-600: oklch(0.56 0.093 151.3);
  --brand-700: oklch(0.48 0.088 151.3);
  --brand-800: oklch(0.40 0.079 151.3);
  --brand-900: oklch(0.32 0.065 151.3);
  --brand-950: oklch(0.24 0.051 151.3);
}

Colors that work with #90cf9f

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#F4FAF6
Tinted page background
Border#C6E6CE
Hairlines and dividers
Muted text#4B9B5E
Captions on the surface
Accent#913A92
Second voice, not a rival
Dark variant#275933
Hover, pressed, headers
Light variant#EDF7F0
Selected rows, tints
Dark surface#142418
Dark-mode background
Hover#77C489
One step down in lightness
Pressed#5EB974
Two steps down
Disabled#E2EDE5
Chroma pulled out
Focus ring#97DCA8
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 #90cf9f

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 #275933
Safe as a 1px border on white
No — use #48A75F

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
  • Weight31/100
  • 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#CF90C0
Analogous left#A0CF90
Analogous right#90CFBE
Split-complement 1#BE90CF
Split-complement 2#CF90A0
Triadic 1#9F90CF
Triadic 2#CF9F90
Tetradic#90A0CF
On the wheel
Base+30°−30°+120°+240°+180°134°

#90cf9f sits at 134°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red56.5%
Green81.2%
Blue62.4%
R · 0–255
144
0x90
G · 0–255
207
0xcf
B · 0–255
159
0x9f

CMYK percentages

Cyan30.4%
Magenta0.0%
Yellow23.2%
Key (black)18.8%

Total ink coverage is 72%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#90cf9f text on a black background

contrast 11.61:1

Card sample

#90cf9f text on a white background

contrast 1.81:1

Card sample

#90cf9f on grey

1.65:1

#90cf9f on its own surface

1.71:1

#90cf9f on its dark surface

8.96:1

CSS3 live lab

Text font color

The quick brown fox

color: #90cf9f;
Background color
Panel with #90cf9f background
background-color: #90cf9f;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #90cf9f;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(144, 207, 159, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(144, 207, 159, 0.45);
Border & gradient
Gradient panel
border: 3px solid #90cf9f;
background: linear-gradient(135deg, #90cf9f, #90CFC9);
Gradient text

Gradient headline

background: linear-gradient(90deg, #90cf9f, #90C5CF);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #90cf9f;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #90cf9f;
caret-color: #90cf9f;
Left rule
Pull quote or callout
border-left: 4px solid #90cf9f;
Ring + tint
Selected chip
background: #EDF7F0;
box-shadow: inset 0 0 0 2px #90cf9f;
Conic badge
68%
background: conic-gradient(#90cf9f 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #90cf9f 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(144, 207, 159, 0.5)
rgb(144 207 159 / 50%)
#90cf9f80
hsl(134 40% 69% / 50%)
color-mix(in srgb, #90cf9f 50%, transparent)
Alpha8-digit hexFlat on white
10%#90cf9f1a#F4FAF5
20%#90cf9f33#E9F5EC
40%#90cf9f66#D3ECD9
60%#90cf9f99#BCE2C5
80%#90cf9fcc#A6D9B2

Gradients from #90cf9f

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, #BBE1C4, #90cf9f 45%, #275933);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #90cf9f, #7BC6C5);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #90cf9f, #CF90C0);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #D0EBD6 0%, #90cf9f 45%, #275933 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4FAF6, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #C2DEB4 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #A5D8CF 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #275933 0%, transparent 65%), #90cf9f;

Monochromatic scale

Palettes built from #90cf9f

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.

#90cf9f 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 11.61:1.

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.

#90cf9f, answered

What color is #90cf9f?

#90cf9f is a light soft green, closest to Dark Sea Green (ΔE2000 5.2). It sits at 134° on the hue wheel with 40% saturation and 69% lightness, which reads as cool.

What is the RGB value of #90cf9f?

rgb(144, 207, 159) — 144 red, 207 green and 159 blue out of 255, or 56.5% / 81.2% / 62.4% by channel.

What is #90cf9f in HSL and HSV?

hsl(134, 40%, 69%) and hsv(134, 30%, 81%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #90cf9f a light or a dark color?

It is a light color. Relative luminance is 0.5306 and perceived brightness is 73%, so black text on it reaches 11.61:1.

Should I use black or white text on #90cf9f?

Black. It scores 11.61:1 against #90cf9f, versus 1.81:1 for white — AAA at any size.

Is #90cf9f accessible on a white background?

#90cf9f on white scores 1.81:1, which fails WCAG AA at every size. Darken it to #39834A to reach 4.5:1, or #2B6338 for 7:1.

What is the complementary color of #90cf9f?

#CF90C0 sits directly opposite on the wheel. Softer options are the split-complements #BE90CF and #CF90A0, which give the same contrast with far less vibration.

What colors go well with #90cf9f?

For interface work: #F4FAF6 as the surface, #C6E6CE for borders, #4B9B5E for secondary text, #913A92 as an accent and #275933 for hover and pressed states. For a palette, the analogous pair #A0CF90 and #90CFBE stays calm, while #CF90C0 is the loudest partner.

What is #90cf9f in CMYK for printing?

cmyk(30%, 0%, 23%, 19%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #90cf9f warm or cool?

Cool — it scores 68 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #98CF90; nudged cooler, #8ED1B6.

Which Tailwind color is closest to #90cf9f?

The emerald family — its 500 step is #10b981, ΔE2000 11.8 away. That is a visible difference, so define #90cf9f as a custom token rather than reaching for the built-in.

How do I use #90cf9f in Tailwind CSS?

Inline it as an arbitrary value with bg-[#90cf9f] or text-[#90cf9f], 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 #90cf9f with 50% opacity?

rgba(144, 207, 159, 0.5), or #90cf9f80 in eight-digit hex. Over white that composites to #C8E7CF; over black, #486850.

Is #90cf9f a web-safe color?

No. The nearest web-safe colour is #99CC99, ΔE2000 2.4 away. The palette only matters for legacy displays and some email clients now.

What does the color #90cf9f 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 #90cf9f?

The safest is same-hue elevation: linear-gradient(135deg, #BBE1C4, #90cf9f 45%, #275933). For more colour, a short hue run to #7BC6C5 keeps it rich without turning muddy.

Work with #90cf9f in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #90cf9f at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.