#04371B#04371B

#04371B is a dark, moderate green. Relative luminance 0.028; OKLCH L 29.7% C 0.072 H 153.4°. Best body text is #FFFFFF at 13.40:1 contrast (WCAG AA passes).

Color values

HEX	#04371B
RGB	rgb(4, 55, 27)
HSL	hsl(147, 86%, 12%)
HSV	hsv(147, 93%, 22%)
CMYK	cmyk(92.7%, 0%, 50.9%, 78.4%)
CIE-LAB	lab(19.38, -23.98, 13.06)
CIE-LCH	lch(19.38, 27.31, 151.43°)
OKLab	oklab(29.69% -0.0644 0.0323)
OKLCH	oklch(29.69% 0.072 153.4)
XYZ	xyz(1.6139, 2.8371, 1.4993)
Luminance	0.0284 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Hunter Green (survey)

#0B4008

ΔE00 7.40

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04371B #370420

analogous

#063704 #04371B #043735

triadic

#04371B #1B0437 #371B04

tetradic

#04371B #040637 #370420 #373504

square

#04371B #040637 #370420 #373504

split-complementary

#04371B #350437 #370406

monochromatic

#021D0E #021D0E #04371B #087037 #0CA953

Accessibility & contrast

On white

13.40

#04371B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#04371B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04371B

13.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04371B	#FFFFFF	#000000	##FFFFFF
##04371B	1.00	13.40	1.57	13.40
#FFFFFF	13.40	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373119

Deuteranopia (green-blind)

#312D1D

Tritanopia (blue-blind)

#003630

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #04371b;
/* rgb */ color: rgb(4, 55, 27);
/* oklch */ color: oklch(29.7% 0.072 153.4);

Tailwind

colors: {
  custom: {
    50: '#4e6e57',
    500: '#04371b',
    950: '#000000',
  },
}

SCSS

$custom: #04371b;
$custom-light: #4e6e57;
$custom-dark: #000000;

JSON

{
  "hex": "#04371b",
  "rgb": {
    "r": 4,
    "g": 55,
    "b": 27
  },
  "hsl": {
    "h": 147.059,
    "s": 86.441,
    "l": 11.569
  },
  "oklch": {
    "l": 0.29688,
    "c": 0.07206,
    "h": 153.4
  },
  "luminance": 0.02837
}

Semantic roles & 50–950 ramp

primary

#04371B

secondary

#791E50

accent

#2B9EFD

background

#F4F6F5

surface

#E7ECE9

border

#C3C7C5

text

#020703

muted

#787A78

Preview Lab

Preview with #04371B

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

Preview Lab → · Contrast checker → · Palette generator →