#3F591D#3F591D

#3F591D is a dark, moderate yellow-green. Relative luminance 0.083; OKLCH L 42.9% C 0.092 H 129.5°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F591D
RGB	rgb(63, 89, 29)
HSL	hsl(86, 51%, 23%)
HSV	hsv(86, 67%, 35%)
CMYK	cmyk(29.2%, 0%, 67.4%, 65.1%)
CIE-LAB	lab(34.58, -20.67, 30.71)
CIE-LCH	lch(34.58, 37.02, 123.95°)
OKLab	oklab(42.9% -0.0583 0.0708)
OKLCH	oklch(42.9% 0.092 129.5)
XYZ	xyz(5.8440, 8.2901, 2.4544)
Luminance	0.0829 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F591D #371D59

analogous

#59551D #3F591D #21591D

triadic

#3F591D #1D3F59 #591D3F

tetradic

#3F591D #1D5955 #371D59 #591D21

square

#3F591D #1D5955 #371D59 #591D21

split-complementary

#3F591D #1D2159 #551D59

monochromatic

#101708 #1E2B0E #3F591D #60872C #80B53B

Accessibility & contrast

On white

7.90

#3F591D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#3F591D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F591D

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F591D	#FFFFFF	#000000	##FFFFFF
##3F591D	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5316

Deuteranopia (green-blind)

#5A5122

Tritanopia (blue-blind)

#41554C

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3f591d;
/* rgb */ color: rgb(63, 89, 29);
/* oklch */ color: oklch(42.9% 0.092 129.5);

Tailwind

colors: {
  custom: {
    50: '#76885c',
    500: '#3f591d',
    950: '#000000',
  },
}

SCSS

$custom: #3f591d;
$custom-light: #76885c;
$custom-dark: #000000;

JSON

{
  "hex": "#3f591d",
  "rgb": {
    "r": 63,
    "g": 89,
    "b": 29
  },
  "hsl": {
    "h": 86,
    "s": 50.847,
    "l": 23.137
  },
  "oklch": {
    "l": 0.42899,
    "c": 0.09172,
    "h": 129.5
  },
  "luminance": 0.0829
}

Semantic roles & 50–950 ramp

primary

#3F591D

secondary

#64448E

accent

#4DDA8B

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B04

muted

#7B7C79

Preview Lab

Preview with #3F591D

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

Preview Lab → · Contrast checker → · Palette generator →