#37591B#37591B

#37591B is a dark, moderate yellow-green. Relative luminance 0.080; OKLCH L 42.3% C 0.098 H 133.5°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#37591B
RGB	rgb(55, 89, 27)
HSL	hsl(93, 53%, 23%)
HSV	hsv(93, 70%, 35%)
CMYK	cmyk(38.2%, 0%, 69.7%, 65.1%)
CIE-LAB	lab(34.06, -24.20, 30.97)
CIE-LCH	lch(34.06, 39.30, 128.00°)
OKLab	oklab(42.34% -0.0676 0.0712)
OKLCH	oklch(42.34% 0.098 133.5)
XYZ	xyz(5.3457, 8.0359, 2.3061)
Luminance	0.0804 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37591B #3D1B59

analogous

#56591B #37591B #1B591E

triadic

#37591B #1B3759 #591B37

tetradic

#37591B #1B5659 #3D1B59 #591E1B

square

#37591B #1B5659 #3D1B59 #591E1B

split-complementary

#37591B #1E1B59 #591B56

monochromatic

#0F1707 #1A2A0D #37591B #548829 #71B737

Accessibility & contrast

On white

8.05

#37591B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#37591B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37591B

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37591B	#FFFFFF	#000000	##FFFFFF
##37591B	1.00	8.05	2.61	8.05
#FFFFFF	8.05	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5213

Deuteranopia (green-blind)

#584F20

Tritanopia (blue-blind)

#37554C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #37591b;
/* rgb */ color: rgb(55, 89, 27);
/* oklch */ color: oklch(42.3% 0.098 133.5);

Tailwind

colors: {
  custom: {
    50: '#71885b',
    500: '#37591b',
    950: '#000000',
  },
}

SCSS

$custom: #37591b;
$custom-light: #71885b;
$custom-dark: #000000;

JSON

{
  "hex": "#37591b",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 27
  },
  "hsl": {
    "h": 92.903,
    "s": 53.448,
    "l": 22.745
  },
  "oklch": {
    "l": 0.42335,
    "c": 0.09819,
    "h": 133.5
  },
  "luminance": 0.08036
}

Semantic roles & 50–950 ramp

primary

#37591B

secondary

#6C418F

accent

#4BDD9B

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#080B04

muted

#7B7C79

Preview Lab

Preview with #37591B

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

Preview Lab → · Contrast checker → · Palette generator →