#3F591F#3F591F

#3F591F is a dark, moderate yellow-green. Relative luminance 0.083; OKLCH L 42.9% C 0.090 H 129.8°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#3F591F
RGB	rgb(63, 89, 31)
HSL	hsl(87, 48%, 24%)
HSV	hsv(87, 65%, 35%)
CMYK	cmyk(29.2%, 0%, 65.2%, 65.1%)
CIE-LAB	lab(34.60, -20.47, 29.73)
CIE-LCH	lch(34.60, 36.10, 124.55°)
OKLab	oklab(42.92% -0.0576 0.069)
OKLCH	oklch(42.92% 0.09 129.8)
XYZ	xyz(5.8696, 8.3003, 2.5889)
Luminance	0.0830 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F591F #391F59

analogous

#59561F #3F591F #22591F

triadic

#3F591F #1F3F59 #591F3F

tetradic

#3F591F #1F5956 #391F59 #591F22

square

#3F591F #1F5956 #391F59 #591F22

split-complementary

#3F591F #1F2259 #561F59

monochromatic

#101708 #1F2C0F #3F591F #5F862F #7FB43F

Accessibility & contrast

On white

7.89

#3F591F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#3F591F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F591F

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F591F	#FFFFFF	#000000	##FFFFFF
##3F591F	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5318

Deuteranopia (green-blind)

#5A5123

Tritanopia (blue-blind)

#41554D

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3f591f;
/* rgb */ color: rgb(63, 89, 31);
/* oklch */ color: oklch(42.9% 0.090 129.8);

Tailwind

colors: {
  custom: {
    50: '#76885d',
    500: '#3f591f',
    950: '#000000',
  },
}

SCSS

$custom: #3f591f;
$custom-light: #76885d;
$custom-dark: #000000;

JSON

{
  "hex": "#3f591f",
  "rgb": {
    "r": 63,
    "g": 89,
    "b": 31
  },
  "hsl": {
    "h": 86.897,
    "s": 48.333,
    "l": 23.529
  },
  "oklch": {
    "l": 0.42922,
    "c": 0.08986,
    "h": 129.8
  },
  "luminance": 0.083
}

Semantic roles & 50–950 ramp

primary

#3F591F

secondary

#66468E

accent

#50D88D

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B04

muted

#7B7C79

Preview Lab

Preview with #3F591F

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

Preview Lab → · Contrast checker → · Palette generator →