#37521B#37521B

#37521B is a dark, moderate yellow-green. Relative luminance 0.069; OKLCH L 40.4% C 0.087 H 131.4°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#37521B
RGB	rgb(55, 82, 27)
HSL	hsl(89, 50%, 21%)
HSV	hsv(89, 67%, 32%)
CMYK	cmyk(32.9%, 0%, 67.1%, 67.8%)
CIE-LAB	lab(31.64, -20.64, 28.32)
CIE-LCH	lch(31.64, 35.04, 126.08°)
OKLab	oklab(40.36% -0.0579 0.0656)
OKLCH	oklch(40.36% 0.087 131.4)
XYZ	xyz(4.7906, 6.9258, 2.1211)
Luminance	0.0693 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37521B #361B52

analogous

#52521B #37521B #1C521B

triadic

#37521B #1B3752 #521B37

tetradic

#37521B #1B5252 #361B52 #521B1C

square

#37521B #1B5252 #361B52 #521B1C

split-complementary

#37521B #1B1C52 #521B52

monochromatic

#0F1708 #18240C #37521B #56802A #75AE39

Accessibility & contrast

On white

8.80

#37521B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#37521B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37521B

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37521B	#FFFFFF	#000000	##FFFFFF
##37521B	1.00	8.80	2.39	8.80
#FFFFFF	8.80	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564C15

Deuteranopia (green-blind)

#524A1F

Tritanopia (blue-blind)

#384E46

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #37521b;
/* rgb */ color: rgb(55, 82, 27);
/* oklch */ color: oklch(40.4% 0.087 131.4);

Tailwind

colors: {
  custom: {
    50: '#70825a',
    500: '#37521b',
    950: '#000000',
  },
}

SCSS

$custom: #37521b;
$custom-light: #70825a;
$custom-dark: #000000;

JSON

{
  "hex": "#37521b",
  "rgb": {
    "r": 55,
    "g": 82,
    "b": 27
  },
  "hsl": {
    "h": 89.455,
    "s": 50.459,
    "l": 21.373
  },
  "oklch": {
    "l": 0.40364,
    "c": 0.08746,
    "h": 131.4
  },
  "luminance": 0.06926
}

Semantic roles & 50–950 ramp

primary

#37521B

secondary

#644188

accent

#4EDA93

background

#F6F8F5

surface

#ECEFE9

border

#C7CAC5

text

#080A04

muted

#7B7C79

Preview Lab

Preview with #37521B

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

Preview Lab → · Contrast checker → · Palette generator →