#37581F#37581F

#37581F is a dark, moderate yellow-green. Relative luminance 0.079; OKLCH L 42.1% C 0.093 H 134.1°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#37581F
RGB	rgb(55, 88, 31)
HSL	hsl(95, 48%, 23%)
HSV	hsv(95, 65%, 35%)
CMYK	cmyk(37.5%, 0%, 64.8%, 65.5%)
CIE-LAB	lab(33.75, -23.28, 28.64)
CIE-LCH	lch(33.75, 36.91, 129.11°)
OKLab	oklab(42.1% -0.0648 0.0668)
OKLCH	oklch(42.1% 0.093 134.1)
XYZ	xyz(5.3125, 7.8904, 2.5391)
Luminance	0.0789 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37581F #401F58

analogous

#53581F #37581F #1F5823

triadic

#37581F #1F3758 #581F37

tetradic

#37581F #1F5358 #401F58 #58231F

square

#37581F #1F5358 #401F58 #58231F

split-complementary

#37581F #231F58 #581F53

monochromatic

#0E1708 #1B2B0F #37581F #53852F #70B33F

Accessibility & contrast

On white

8.15

#37581F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#37581F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37581F

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37581F	#FFFFFF	#000000	##FFFFFF
##37581F	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5119

Deuteranopia (green-blind)

#574E23

Tritanopia (blue-blind)

#37554C

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #37581f;
/* rgb */ color: rgb(55, 88, 31);
/* oklch */ color: oklch(42.1% 0.093 134.1);

Tailwind

colors: {
  custom: {
    50: '#70875d',
    500: '#37581f',
    950: '#000000',
  },
}

SCSS

$custom: #37581f;
$custom-light: #70875d;
$custom-dark: #000000;

JSON

{
  "hex": "#37581f",
  "rgb": {
    "r": 55,
    "g": 88,
    "b": 31
  },
  "hsl": {
    "h": 94.737,
    "s": 47.899,
    "l": 23.333
  },
  "oklch": {
    "l": 0.421,
    "c": 0.09302,
    "h": 134.1
  },
  "luminance": 0.07891
}

Semantic roles & 50–950 ramp

primary

#37581F

secondary

#6F468D

accent

#50D79F

background

#F6F8F5

surface

#ECEFE9

border

#C7CAC5

text

#080B04

muted

#7B7C79

Preview Lab

Preview with #37581F

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

Preview Lab → · Contrast checker → · Palette generator →