#42581D#42581D

#42581D is a dark, moderate yellow-green. Relative luminance 0.082; OKLCH L 42.8% C 0.089 H 127.1°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#42581D
RGB	rgb(66, 88, 29)
HSL	hsl(82, 50%, 23%)
HSV	hsv(82, 67%, 35%)
CMYK	cmyk(25%, 0%, 67%, 65.5%)
CIE-LAB	lab(34.45, -18.83, 30.63)
CIE-LCH	lch(34.45, 35.95, 121.59°)
OKLab	oklab(42.85% -0.0534 0.0706)
OKLCH	oklch(42.85% 0.089 127.1)
XYZ	xyz(5.9583, 8.2263, 2.4361)
Luminance	0.0823 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42581D #331D58

analogous

#58501D #42581D #24581D

triadic

#42581D #1D4258 #581D42

tetradic

#42581D #1D5850 #331D58 #581D24

square

#42581D #1D5850 #331D58 #581D24

split-complementary

#42581D #1D2458 #501D58

monochromatic

#111708 #1F2A0E #42581D #65862C #87B43B

Accessibility & contrast

On white

7.94

#42581D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#42581D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42581D

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42581D	#FFFFFF	#000000	##FFFFFF
##42581D	1.00	7.94	2.65	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5216

Deuteranopia (green-blind)

#5A5121

Tritanopia (blue-blind)

#45544C

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #42581d;
/* rgb */ color: rgb(66, 88, 29);
/* oklch */ color: oklch(42.8% 0.089 127.1);

Tailwind

colors: {
  custom: {
    50: '#78875c',
    500: '#42581d',
    950: '#000000',
  },
}

SCSS

$custom: #42581d;
$custom-light: #78875c;
$custom-dark: #000000;

JSON

{
  "hex": "#42581d",
  "rgb": {
    "r": 66,
    "g": 88,
    "b": 29
  },
  "hsl": {
    "h": 82.373,
    "s": 50.427,
    "l": 22.941
  },
  "oklch": {
    "l": 0.42848,
    "c": 0.08853,
    "h": 127.1
  },
  "luminance": 0.08226
}

Semantic roles & 50–950 ramp

primary

#42581D

secondary

#5F448D

accent

#4EDA82

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B04

muted

#7B7C79

Preview Lab

Preview with #42581D

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

Preview Lab → · Contrast checker → · Palette generator →