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green · cool

#25552b

a deep, soft green · cool · closest name: Dark Green

Token name suggestion: Ink Moss

RGB
37, 85, 43
HSL
128°, 39%, 24%
CMYK
57, 0, 49, 67
Luminance
0.0706

#25552b is a deep soft green, 128° on the wheel and 66/100 on the cool side. Put white text on it (8.70:1). As text it scores 8.70:1 on white — safe at any size. Nearest name is Dark Green, nearest Tailwind family is neutral.

hsl(128 39% 24%)rgb(37 85 43)Base step 900AAA inkCool

At a glance

Every number on this page in one read: what #25552b is made of, how bright it looks, and which way it leans.

Hex
#25552b
Hue
128°
green
Saturation
39%
soft
Lightness
24%
deep
Brightness
33%
HSV value
Perceived
27%
weighted brightness
Luminance
0.0706
WCAG relative
Temperature
Cool
66/100 cool
Color family
Green
Tone
Soft
Best ink
White
8.70:1
Closest name
Dark Green
ΔE2000 9.9
Chroma
33.0
LCH, 0–130ish
OKLCH L
0.404
perceptual lightness
Tailwind
neutral
500 · ΔE 26
Web-safe
#336633
nearest of 216
Where it sits
Hue128° of 360°
Saturation39%
Lightness24%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #25552b.

Temperature
Warm ← → Cool66% 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
Red6%
Green92%
Blue2%

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

Every format

HEX#25552b
HEX (8-digit)#25552bff
RGBrgb(37, 85, 43)
RGBArgba(37, 85, 43, 1)
HSLhsl(128, 39%, 24%)
HSV / HSBhsv(128, 56%, 33%)
HWBhwb(128 15% 67%)
CMYKcmyk(57%, 0%, 49%, 67%)
LABlab(31.9 -26.5 19.6)
LCHlch(31.9 33.0 143.5)
OKLCHoklch(0.404 0.086 146.3)
XYZ (D65)xyz(4.45, 7.06, 3.41)
Decimal2446635
Display P3color(display-p3 0.145 0.333 0.169)
Web-safe#336633

Copy-ready code

every platformclick to select
/* CSS */
color: #25552b;
background-color: #25552b;
/* CSS custom property */
--brand: #25552b;
/* Tailwind (arbitrary) */
class="text-[#25552b] bg-[#25552b]"
/* SCSS */
$brand: #25552b;
/* SwiftUI */
Color(red: 0.145, green: 0.333, blue: 0.169)
/* UIKit */
UIColor(red: 0.145, green: 0.333, blue: 0.169, alpha: 1)
/* Android XML */
<color name="brand">#25552B</color>
/* Android Compose */
Color(0xFF25552B)
/* Flutter */
Color(0xFF25552B)
/* Python / OpenCV (BGR) */
(43, 85, 37)
/* Python / PIL (RGB) */
(37, 85, 43)
/* Java AWT */
new Color(37, 85, 43)
/* .NET */
Color.FromArgb(255, 37, 85, 43)
/* OpenGL / Unity (0–1) */
(0.1451f, 0.3333f, 0.1686f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{37,85,43}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #25552b 85%, white);
border-color: color-mix(in oklab, #25552b 40%, transparent);
/* theme-aware in one line */
color: light-dark(#27592D, #D4ECD7);
/* relative colour syntax */
--hover: hsl(from #25552b 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: #EBF4EC;
  --brand-200: #D2E9D5;
  --brand-300: #B1DDB6;
  --brand-400: #8ACC92;
  --brand-500: #63BB6E;
  --brand-600: #4AAB56;
  --brand-700: #3E8E48;
  --brand-800: #32723A;
  --brand-900: #25552b;
  --brand-950: #18341C;
  --brand: #25552b;
  --brand-ink: #ffffff;
  --brand-surface: #F4FAF5;
  --brand-border: #C6E6CA;
  --brand-hover: #1A3C1E;
  --brand-pressed: #0F2312;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #142416;
    --brand-ink: #D4ECD7;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F5FAF6',
        100: '#EBF4EC',
        200: '#D2E9D5',
        300: '#B1DDB6',
        400: '#8ACC92',
        500: '#63BB6E',
        600: '#4AAB56',
        700: '#3E8E48',
        800: '#32723A',
        900: '#25552b',
        950: '#18341C',
        DEFAULT: '#25552b',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F5FAF6,
  '100': #EBF4EC,
  '200': #D2E9D5,
  '300': #B1DDB6,
  '400': #8ACC92,
  '500': #63BB6E,
  '600': #4AAB56,
  '700': #3E8E48,
  '800': #32723A,
  '900': #25552b,
  '950': #18341C,
);
$brand-base: #25552b;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F5FAF6", "$type": "color" },
      "100": { "$value": "#EBF4EC", "$type": "color" },
      "200": { "$value": "#D2E9D5", "$type": "color" },
      "300": { "$value": "#B1DDB6", "$type": "color" },
      "400": { "$value": "#8ACC92", "$type": "color" },
      "500": { "$value": "#63BB6E", "$type": "color" },
      "600": { "$value": "#4AAB56", "$type": "color" },
      "700": { "$value": "#3E8E48", "$type": "color" },
      "800": { "$value": "#32723A", "$type": "color" },
      "900": { "$value": "#25552b", "$type": "color" },
      "950": { "$value": "#18341C", "$type": "color" }
    },
    "brandInk": { "$value": "#ffffff", "$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#ffffff on #25552b · 8.70:1
Use #ffffffAAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 8.70:1 · recommended
AA pass · AA large pass · AAA pass
Aa
Black text · 2.41:1
AA fail · AA large fail · AAA fail
Reading the other direction: #25552b as text scores 8.70:1 on white and 2.41:1 on black.
Best tinted ink on it, if plain black or white feels flat: #EDF7EE at 7.93:1.

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
#25552b · 8.70:1
AA on whitealready passes
#25552b
The quick fox
#25552b · 8.70:1
AAA on whitealready passes
#25552b
The quick fox
#398342 · 4.50:1
AA on black+13% L
#398342
The quick fox
#4AAA56 · 7.18:1
AAA on black+24% L
#4AAA56

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #25552B 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
#25552b on white: 8.70:1
AA ✓ pass · AA-large · AAA
Aa
#25552b on black: 2.41:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #25552b as text on that neutral, and that neutral as text on #25552b.

NeutralRatioBoth directions
White8.70:1AaAa
Slate 508.32:1AaAa
Slate 1007.94:1AaAa
Slate 2007.06:1AaAa
Slate 3005.86:1AaAa
Slate 4003.39:1AaAa
Slate 5001.83:1AaAa
Slate 6001.15:1AaAa
Slate 7001.19:1AaAa
Slate 8001.68:1AaAa
Slate 9002.05:1AaAa
Black2.41:1AaAa
Colour vision deficiency
true color
protanopia · #564E28
deuteranopia · #50492E
tritanopia · #1C534B

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. #25552b is pinned to step 900; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F5FAF6
#EBF4EC
#D2E9D5
#B1DDB6
#8ACC92
#63BB6E
#4AAB56
#3E8E48
#32723A
#25552b
#18341C
Base = 900Lightest = 50 · #F5FAF6Darkest = 950 · #18341CText 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 0.022 146.3);
  --brand-100: oklch(0.94 0.035 146.3);
  --brand-200: oklch(0.88 0.052 146.3);
  --brand-300: oklch(0.80 0.067 146.3);
  --brand-400: oklch(0.72 0.080 146.3);
  --brand-500: oklch(0.64 0.086 146.3);
  --brand-600: oklch(0.56 0.086 146.3);
  --brand-700: oklch(0.48 0.081 146.3);
  --brand-800: oklch(0.40 0.073 146.3);
  --brand-900: oklch(0.32 0.061 146.3);
  --brand-950: oklch(0.24 0.048 146.3);
}

Colors that work with #25552b

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

Text on it#ffffff
White wins here
Surface#F4FAF5
Tinted page background
Border#C6E6CA
Hairlines and dividers
Muted text#4B9B55
Captions on the surface
Accent#512357
Second voice, not a rival
Dark variant#27592D
Hover, pressed, headers
Light variant#EDF7EE
Selected rows, tints
Dark surface#142416
Dark-mode background
Hover#1A3C1E
One step down in lightness
Pressed#0F2312
Two steps down
Disabled#5B8F62
Chroma pulled out
Focus ring#246A2D
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 #25552b

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

Works well for
  • Body text and links on white
  • Charts, tags and secondary surfaces
  • Headers, footers and dark-mode surfaces
  • Brand accents, badges and data highlights
Use with care
  • Text on black or near-black surfaces
  • Black 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
Any size
Safe as a fill behind white type
Yes
Safe as a 1px border on white
Yes

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 low lightness adds weight and formality.

Worth knowing

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

Reads as
  • FormalityHigh
  • EnergyMedium
  • Weight76/100
  • 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#55254F
Analogous left#375525
Analogous right#255543
Split-complement 1#432555
Split-complement 2#552537
Triadic 1#2B2555
Triadic 2#552B25
Tetradic#253755
On the wheel
Base+30°−30°+120°+240°+180°128°

#25552b sits at 128°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red14.5%
Green33.3%
Blue16.9%
R · 0–255
37
0x25
G · 0–255
85
0x55
B · 0–255
43
0x2b

CMYK percentages

Cyan56.5%
Magenta0.0%
Yellow49.4%
Key (black)66.7%

Total ink coverage is 173%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#25552b text on a black background

contrast 2.41:1

Card sample

#25552b text on a white background

contrast 8.70:1

Card sample

#25552b on grey

7.94:1

#25552b on its own surface

8.22:1

#25552b on its dark surface

1.87:1

CSS3 live lab

Text font color

The quick brown fox

color: #25552b;
Background color
Panel with #25552b background
background-color: #25552b;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #25552b;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(37, 85, 43, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(37, 85, 43, 0.45);
Border & gradient
Gradient panel
border: 3px solid #25552b;
background: linear-gradient(135deg, #25552b, #25554B);
Gradient text

Gradient headline

background: linear-gradient(90deg, #25552b, #255355);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #25552b;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #25552b;
caret-color: #25552b;
Left rule
Pull quote or callout
border-left: 4px solid #25552b;
Ring + tint
Selected chip
background: #EDF7EE;
box-shadow: inset 0 0 0 2px #25552b;
Conic badge
68%
background: conic-gradient(#25552b 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #25552b 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(37, 85, 43, 0.5)
rgb(37 85 43 / 50%)
#25552b80
hsl(128 39% 24% / 50%)
color-mix(in srgb, #25552b 50%, transparent)
Alpha8-digit hexFlat on white
10%#25552b1a#E9EEEA
20%#25552b33#D3DDD5
40%#25552b66#A8BBAA
60%#25552b99#7C9980
80%#25552bcc#517755

Gradients from #25552b

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, #388041, #25552b 45%, #27592D);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #25552b, #1C403B);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #25552b, #55254F);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #41954B 0%, #25552b 45%, #27592D 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4FAF5, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #547834 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #2E6A59 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #27592D 0%, transparent 65%), #25552b;

Monochromatic scale

Palettes built from #25552b

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.

#25552b 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
ButtonsLinksFocus statesCharts
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

Too dim on dark surfaces at 2.41:1 — lift it to #398342 for body text, or reserve it for fills.

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.

#25552b, answered

What color is #25552b?

#25552b is a deep soft green, closest to Dark Green (ΔE2000 9.9). It sits at 128° on the hue wheel with 39% saturation and 24% lightness, which reads as cool.

What is the RGB value of #25552b?

rgb(37, 85, 43) — 37 red, 85 green and 43 blue out of 255, or 14.5% / 33.3% / 16.9% by channel.

What is #25552b in HSL and HSV?

hsl(128, 39%, 24%) and hsv(128, 56%, 33%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #25552b a light or a dark color?

It is a dark color. Relative luminance is 0.0706 and perceived brightness is 27%, so white text on it reaches 8.70:1.

Should I use black or white text on #25552b?

White. It scores 8.70:1 against #25552b, versus 2.41:1 for black — AAA at any size.

Is #25552b accessible on a white background?

#25552b on white scores 8.70:1, which clears AAA at every size.

What is the complementary color of #25552b?

#55254F sits directly opposite on the wheel. Softer options are the split-complements #432555 and #552537, which give the same contrast with far less vibration.

What colors go well with #25552b?

For interface work: #F4FAF5 as the surface, #C6E6CA for borders, #4B9B55 for secondary text, #512357 as an accent and #27592D for hover and pressed states. For a palette, the analogous pair #375525 and #255543 stays calm, while #55254F is the loudest partner.

What is #25552b in CMYK for printing?

cmyk(57%, 0%, 49%, 67%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #25552b warm or cool?

Cool — it scores 66 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #315525; nudged cooler, #24563D.

Which Tailwind color is closest to #25552b?

The neutral family — its 500 step is #737373, ΔE2000 26 away. That is a visible difference, so define #25552b as a custom token rather than reaching for the built-in.

How do I use #25552b in Tailwind CSS?

Inline it as an arbitrary value with bg-[#25552b] or text-[#25552b], 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 #25552b with 50% opacity?

rgba(37, 85, 43, 0.5), or #25552b80 in eight-digit hex. Over white that composites to #92AA95; over black, #132B16.

Is #25552b a web-safe color?

No. The nearest web-safe colour is #336633, ΔE2000 5.8 away. The palette only matters for legacy displays and some email clients now.

What does the color #25552b 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 #25552b?

The safest is same-hue elevation: linear-gradient(135deg, #388041, #25552b 45%, #27592D). For more colour, a short hue run to #1C403B keeps it rich without turning muddy.

Work with #25552b in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #25552b at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.