#42571C#42571C

#42571C is a dark, moderate yellow-green. Relative luminance 0.081; OKLCH L 42.6% C 0.088 H 126.5°. Best body text is #FFFFFF at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#42571C
RGB	rgb(66, 87, 28)
HSL	hsl(81, 51%, 23%)
HSV	hsv(81, 68%, 34%)
CMYK	cmyk(24.1%, 0%, 67.8%, 65.9%)
CIE-LAB	lab(34.10, -18.39, 30.74)
CIE-LCH	lch(34.10, 35.82, 120.89°)
OKLab	oklab(42.57% -0.0523 0.0707)
OKLCH	oklch(42.57% 0.088 126.5)
XYZ	xyz(5.8646, 8.0584, 2.3448)
Luminance	0.0806 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42571C #311C57

analogous

#574E1C #42571C #25571C

triadic

#42571C #1C4257 #571C42

tetradic

#42571C #1C574E #311C57 #571C25

square

#42571C #1C574E #311C57 #571C25

split-complementary

#42571C #1C2557 #4E1C57

monochromatic

#121707 #1F290D #42571C #65852B #88B43A

Accessibility & contrast

On white

8.04

#42571C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#42571C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42571C

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42571C	#FFFFFF	#000000	##FFFFFF
##42571C	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)

#5C5115

Deuteranopia (green-blind)

#595020

Tritanopia (blue-blind)

#45534B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #42571c;
/* rgb */ color: rgb(66, 87, 28);
/* oklch */ color: oklch(42.6% 0.088 126.5);

Tailwind

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

SCSS

$custom: #42571c;
$custom-light: #78865b;
$custom-dark: #000000;

JSON

{
  "hex": "#42571c",
  "rgb": {
    "r": 66,
    "g": 87,
    "b": 28
  },
  "hsl": {
    "h": 81.356,
    "s": 51.304,
    "l": 22.549
  },
  "oklch": {
    "l": 0.42565,
    "c": 0.08794,
    "h": 126.5
  },
  "luminance": 0.08058
}

Semantic roles & 50–950 ramp

primary

#42571C

secondary

#5D428D

accent

#4DDB7F

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B04

muted

#7B7C79

Preview Lab

Preview with #42571C

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

Preview Lab → · Contrast checker → · Palette generator →