#37581D#37581D

#37581D is a dark, moderate yellow-green. Relative luminance 0.079; OKLCH L 42.1% C 0.095 H 133.7°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX#37581D
RGBrgb(55, 88, 29)
HSLhsl(94, 50%, 23%)
HSVhsv(94, 67%, 35%)
CMYKcmyk(37.5%, 0%, 67%, 65.5%)
CIE-LABlab(33.73, -23.50, 29.63)
CIE-LCHlch(33.73, 37.82, 128.41°)
OKLaboklab(42.08% -0.0655 0.0686)
OKLCHoklch(42.08% 0.095 133.7)
XYZxyz(5.2869, 7.8802, 2.4046)
Luminance0.0788 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#37581D #3E1D58
analogous
#54581D #37581D #1D5820
triadic
#37581D #1D3758 #581D37
tetradic
#37581D #1D5458 #3E1D58 #58201D
square
#37581D #1D5458 #3E1D58 #58201D
split-complementary
#37581D #201D58 #581D54
monochromatic
#0E1708 #1A2A0E #37581D #54862C #71B43B

Accessibility & contrast

On white

8.15
#37581D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.58
#37581D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37581D
8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##37581D#FFFFFF#000000##FFFFFF
##37581D1.008.152.588.15
#FFFFFF8.151.0021.001.00
#0000002.5821.001.0021.00
##FFFFFF8.151.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5C5116
Deuteranopia (green-blind)
#574E22
Tritanopia (blue-blind)
#37544C
Achromatopsia (no color)
#4F4F4F

Design tokens & code

CSS
--color: #37581d;
/* rgb */ color: rgb(55, 88, 29);
/* oklch */ color: oklch(42.1% 0.095 133.7);
Tailwind
colors: {
  custom: {
    50: '#70875c',
    500: '#37581d',
    950: '#000000',
  },
}
SCSS
$custom: #37581d;
$custom-light: #70875c;
$custom-dark: #000000;
JSON
{
  "hex": "#37581d",
  "rgb": {
    "r": 55,
    "g": 88,
    "b": 29
  },
  "hsl": {
    "h": 93.559,
    "s": 50.427,
    "l": 22.941
  },
  "oklch": {
    "l": 0.42076,
    "c": 0.09489,
    "h": 133.7
  },
  "luminance": 0.0788
}

Semantic roles & 50–950 ramp

primary
#37581D
secondary
#6D448D
accent
#4EDA9C
background
#F6F8F5
surface
#ECEFE9
border
#C7CAC5
text
#080B04
muted
#7B7C79

Preview Lab

Preview with #37581D

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

Preview Lab → · Contrast checker → · Palette generator →

#37581D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva