#42531B#42531B

#42531B is a dark, moderate yellow-green. Relative luminance 0.074; OKLCH L 41.5% C 0.083 H 124.3°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#42531B
RGB	rgb(66, 83, 27)
HSL	hsl(78, 51%, 22%)
HSV	hsv(78, 67%, 33%)
CMYK	cmyk(20.5%, 0%, 67.5%, 67.5%)
CIE-LAB	lab(32.75, -16.30, 29.77)
CIE-LCH	lch(32.75, 33.94, 118.71°)
OKLab	oklab(41.47% -0.0467 0.0685)
OKLCH	oklch(41.47% 0.083 124.3)
XYZ	xyz(5.5379, 7.4239, 2.1779)
Luminance	0.0742 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42531B #2C1B53

analogous

#53481B #42531B #26531B

triadic

#42531B #1B4253 #531B42

tetradic

#42531B #1B5348 #2C1B53 #531B26

square

#42531B #1B5348 #2C1B53 #531B26

split-complementary

#42531B #1B2653 #481B53

monochromatic

#121708 #1D250C #42531B #67812A #8BAF39

Accessibility & contrast

On white

8.45

#42531B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#42531B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42531B

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42531B	#FFFFFF	#000000	##FFFFFF
##42531B	1.00	8.45	2.48	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584E14

Deuteranopia (green-blind)

#564D1F

Tritanopia (blue-blind)

#454F47

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #42531b;
/* rgb */ color: rgb(66, 83, 27);
/* oklch */ color: oklch(41.5% 0.083 124.3);

Tailwind

colors: {
  custom: {
    50: '#78835a',
    500: '#42531b',
    950: '#000000',
  },
}

SCSS

$custom: #42531b;
$custom-light: #78835a;
$custom-dark: #000000;

JSON

{
  "hex": "#42531b",
  "rgb": {
    "r": 66,
    "g": 83,
    "b": 27
  },
  "hsl": {
    "h": 78.214,
    "s": 50.909,
    "l": 21.569
  },
  "oklch": {
    "l": 0.4147,
    "c": 0.08285,
    "h": 124.3
  },
  "luminance": 0.07424
}

Semantic roles & 50–950 ramp

primary

#42531B

secondary

#574189

accent

#4DDA78

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090A04

muted

#7B7C79

Preview Lab

Preview with #42531B

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

Preview Lab → · Contrast checker → · Palette generator →