#21831B#21831B

#21831B is a mid, vivid green. Relative luminance 0.166; OKLCH L 53.4% C 0.164 H 142.2°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#21831B
RGB	rgb(33, 131, 27)
HSL	hsl(117, 66%, 31%)
HSV	hsv(117, 79%, 51%)
CMYK	cmyk(74.8%, 0%, 79.4%, 48.6%)
CIE-LAB	lab(47.80, -47.59, 44.77)
CIE-LCH	lch(47.80, 65.34, 136.75°)
OKLab	oklab(53.44% -0.1295 0.1003)
OKLCH	oklch(53.44% 0.164 142.2)
XYZ	xyz(8.9408, 16.6341, 3.7762)
Luminance	0.1663 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21831B #7D1B83

analogous

#55831B #21831B #1B8349

triadic

#21831B #1B2183 #831B21

tetradic

#21831B #1B5583 #7D1B83 #83491B

square

#21831B #1B5583 #7D1B83 #83491B

split-complementary

#21831B #491B83 #831B55

monochromatic

#071E06 #145011 #21831B #2EB625 #49D841

Accessibility & contrast

On white

4.85

#21831B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#21831B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21831B

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21831B	#FFFFFF	#000000	##FFFFFF
##21831B	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#867602

Deuteranopia (green-blind)

#7B6E27

Tritanopia (blue-blind)

#007F6F

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #21831b;
/* rgb */ color: rgb(33, 131, 27);
/* oklch */ color: oklch(53.4% 0.164 142.2);

Tailwind

colors: {
  custom: {
    50: '#6da860',
    500: '#21831b',
    950: '#000000',
  },
}

SCSS

$custom: #21831b;
$custom-light: #6da860;
$custom-dark: #000000;

JSON

{
  "hex": "#21831b",
  "rgb": {
    "r": 33,
    "g": 131,
    "b": 27
  },
  "hsl": {
    "h": 116.538,
    "s": 65.823,
    "l": 30.98
  },
  "oklch": {
    "l": 0.53437,
    "c": 0.1638,
    "h": 142.2
  },
  "luminance": 0.16635
}

Semantic roles & 50–950 ramp

primary

#21831B

secondary

#B043B6

accent

#3FE9DF

background

#F7FAF5

surface

#EDF4EA

border

#C8CEC6

text

#081005

muted

#7B7F79

Preview Lab

Preview with #21831B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →