#3F571A#3F571A

#3F571A is a dark, moderate yellow-green. Relative luminance 0.079; OKLCH L 42.3% C 0.091 H 128.2°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#3F571A
RGB	rgb(63, 87, 26)
HSL	hsl(84, 54%, 22%)
HSV	hsv(84, 70%, 34%)
CMYK	cmyk(27.6%, 0%, 70.1%, 65.9%)
CIE-LAB	lab(33.87, -19.90, 31.40)
CIE-LCH	lch(33.87, 37.18, 122.36°)
OKLab	oklab(42.32% -0.0565 0.0718)
OKLCH	oklch(42.32% 0.091 128.2)
XYZ	xyz(5.6445, 7.9476, 2.2137)
Luminance	0.0795 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F571A #321A57

analogous

#57511A #3F571A #20571A

triadic

#3F571A #1A3F57 #571A3F

tetradic

#3F571A #1A5751 #321A57 #571A20

square

#3F571A #1A5751 #321A57 #571A20

split-complementary

#3F571A #1A2057 #511A57

monochromatic

#111807 #1D280C #3F571A #618628 #83B536

Accessibility & contrast

On white

8.11

#3F571A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#3F571A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F571A

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F571A	#FFFFFF	#000000	##FFFFFF
##3F571A	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5112

Deuteranopia (green-blind)

#584F1F

Tritanopia (blue-blind)

#41534A

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f571a;
/* rgb */ color: rgb(63, 87, 26);
/* oklch */ color: oklch(42.3% 0.091 128.2);

Tailwind

colors: {
  custom: {
    50: '#76865a',
    500: '#3f571a',
    950: '#000000',
  },
}

SCSS

$custom: #3f571a;
$custom-light: #76865a;
$custom-dark: #000000;

JSON

{
  "hex": "#3f571a",
  "rgb": {
    "r": 63,
    "g": 87,
    "b": 26
  },
  "hsl": {
    "h": 83.607,
    "s": 53.982,
    "l": 22.157
  },
  "oklch": {
    "l": 0.42317,
    "c": 0.09138,
    "h": 128.2
  },
  "luminance": 0.07948
}

Semantic roles & 50–950 ramp

primary

#3F571A

secondary

#5E408D

accent

#4ADD84

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B04

muted

#7B7C79

Preview Lab

Preview with #3F571A

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

Preview Lab → · Contrast checker → · Palette generator →