#42571A#42571A

#42571A is a dark, moderate yellow-green. Relative luminance 0.080; OKLCH L 42.5% C 0.090 H 126.2°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#42571A
RGB	rgb(66, 87, 26)
HSL	hsl(81, 54%, 22%)
HSV	hsv(81, 70%, 34%)
CMYK	cmyk(24.1%, 0%, 70.1%, 65.9%)
CIE-LAB	lab(34.08, -18.57, 31.69)
CIE-LCH	lch(34.08, 36.73, 120.37°)
OKLab	oklab(42.54% -0.053 0.0724)
OKLCH	oklch(42.54% 0.09 126.2)
XYZ	xyz(5.8414, 8.0491, 2.2230)
Luminance	0.0805 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42571A #2F1A57

analogous

#574E1A #42571A #24571A

triadic

#42571A #1A4257 #571A42

tetradic

#42571A #1A574E #2F1A57 #571A24

square

#42571A #1A574E #2F1A57 #571A24

split-complementary

#42571A #1A2457 #4E1A57

monochromatic

#121807 #1E280C #42571A #668628 #89B536

Accessibility & contrast

On white

8.05

#42571A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#42571A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42571A

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42571A	#FFFFFF	#000000	##FFFFFF
##42571A	1.00	8.05	2.61	8.05
#FFFFFF	8.05	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5112

Deuteranopia (green-blind)

#59501F

Tritanopia (blue-blind)

#45534A

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #42571a;
/* rgb */ color: rgb(66, 87, 26);
/* oklch */ color: oklch(42.5% 0.090 126.2);

Tailwind

colors: {
  custom: {
    50: '#78865a',
    500: '#42571a',
    950: '#000000',
  },
}

SCSS

$custom: #42571a;
$custom-light: #78865a;
$custom-dark: #000000;

JSON

{
  "hex": "#42571a",
  "rgb": {
    "r": 66,
    "g": 87,
    "b": 26
  },
  "hsl": {
    "h": 80.656,
    "s": 53.982,
    "l": 22.157
  },
  "oklch": {
    "l": 0.42543,
    "c": 0.08973,
    "h": 126.2
  },
  "luminance": 0.08049
}

Semantic roles & 50–950 ramp

primary

#42571A

secondary

#5A408D

accent

#4ADD7D

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B04

muted

#7B7C79

Preview Lab

Preview with #42571A

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

Preview Lab → · Contrast checker → · Palette generator →