#3F580D#3F580D

#3F580D is a dark, moderate yellow-green. Relative luminance 0.081; OKLCH L 42.5% C 0.102 H 127.1°. Best body text is #FFFFFF at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#3F580D
RGB	rgb(63, 88, 13)
HSL	hsl(80, 74%, 20%)
HSV	hsv(80, 85%, 35%)
CMYK	cmyk(28.4%, 0%, 85.2%, 65.5%)
CIE-LAB	lab(34.12, -21.32, 37.00)
CIE-LCH	lch(34.12, 42.71, 119.96°)
OKLab	oklab(42.49% -0.0616 0.0814)
OKLCH	oklch(42.49% 0.102 127.1)
XYZ	xyz(5.6123, 8.0652, 1.6417)
Luminance	0.0806 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F580D #260D58

analogous

#584C0D #3F580D #1A580D

triadic

#3F580D #0D3F58 #580D3F

tetradic

#3F580D #0D584C #260D58 #580D1A

square

#3F580D #0D584C #260D58 #580D1A

split-complementary

#3F580D #0D1A58 #4C0D58

monochromatic

#131B04 #192305 #3F580D #658D15 #8BC31D

Accessibility & contrast

On white

8.04

#3F580D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#3F580D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F580D

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F580D	#FFFFFF	#000000	##FFFFFF
##3F580D	1.00	8.04	2.61	8.04
#FFFFFF	8.04	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5100

Deuteranopia (green-blind)

#5A5015

Tritanopia (blue-blind)

#42534A

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f580d;
/* rgb */ color: rgb(63, 88, 13);
/* oklch */ color: oklch(42.5% 0.102 127.1);

Tailwind

colors: {
  custom: {
    50: '#778753',
    500: '#3f580d',
    950: '#000000',
  },
}

SCSS

$custom: #3f580d;
$custom-light: #778753;
$custom-dark: #000000;

JSON

{
  "hex": "#3f580d",
  "rgb": {
    "r": 63,
    "g": 88,
    "b": 13
  },
  "hsl": {
    "h": 80,
    "s": 74.257,
    "l": 19.804
  },
  "oklch": {
    "l": 0.42485,
    "c": 0.10204,
    "h": 127.1
  },
  "luminance": 0.08065
}

Semantic roles & 50–950 ramp

primary

#3F580D

secondary

#502E93

accent

#37F175

background

#F7F8F5

surface

#EDEFE8

border

#C8CAC4

text

#090B03

muted

#7B7C78

Preview Lab

Preview with #3F580D

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

Preview Lab → · Contrast checker → · Palette generator →