#42591C#42591C

#42591C is a dark, moderate yellow-green. Relative luminance 0.084; OKLCH L 43.1% C 0.091 H 127.4°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#42591C
RGB	rgb(66, 89, 28)
HSL	hsl(83, 52%, 23%)
HSV	hsv(83, 69%, 35%)
CMYK	cmyk(25.8%, 0%, 68.5%, 65.1%)
CIE-LAB	lab(34.78, -19.46, 31.47)
CIE-LCH	lch(34.78, 37.00, 121.73°)
OKLab	oklab(43.11% -0.0553 0.0722)
OKLCH	oklch(43.11% 0.091 127.4)
XYZ	xyz(6.0287, 8.3867, 2.3996)
Luminance	0.0839 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42591C #331C59

analogous

#59511C #42591C #23591C

triadic

#42591C #1C4259 #591C42

tetradic

#42591C #1C5951 #331C59 #591C23

square

#42591C #1C5951 #331C59 #591C23

split-complementary

#42591C #1C2359 #511C59

monochromatic

#111707 #1F2A0D #42591C #65882B #87B639

Accessibility & contrast

On white

7.84

#42591C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#42591C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42591C

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42591C	#FFFFFF	#000000	##FFFFFF
##42591C	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5314

Deuteranopia (green-blind)

#5A5121

Tritanopia (blue-blind)

#45554C

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #42591c;
/* rgb */ color: rgb(66, 89, 28);
/* oklch */ color: oklch(43.1% 0.091 127.4);

Tailwind

colors: {
  custom: {
    50: '#78885b',
    500: '#42591c',
    950: '#000000',
  },
}

SCSS

$custom: #42591c;
$custom-light: #78885b;
$custom-dark: #000000;

JSON

{
  "hex": "#42591c",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 28
  },
  "hsl": {
    "h": 82.623,
    "s": 52.137,
    "l": 22.941
  },
  "oklch": {
    "l": 0.43108,
    "c": 0.09095,
    "h": 127.4
  },
  "luminance": 0.08387
}

Semantic roles & 50–950 ramp

primary

#42591C

secondary

#5F428F

accent

#4CDC82

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B04

muted

#7B7C79

Preview Lab

Preview with #42591C

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

Preview Lab → · Contrast checker → · Palette generator →