#42391C#42391C

#42391C is a dark, muted yellow. Relative luminance 0.042; OKLCH L 34.7% C 0.046 H 92.6°. Best body text is #FFFFFF at 11.45:1 contrast (WCAG AA passes).

Color values

HEX	#42391C
RGB	rgb(66, 57, 28)
HSL	hsl(46, 40%, 18%)
HSV	hsv(46, 58%, 26%)
CMYK	cmyk(0%, 13.6%, 57.6%, 74.1%)
CIE-LAB	lab(24.22, -0.62, 19.39)
CIE-LCH	lch(24.22, 19.40, 91.83°)
OKLab	oklab(34.66% -0.0021 0.0462)
OKLCH	oklch(34.66% 0.046 92.6)
XYZ	xyz(3.9196, 4.1685, 1.6965)
Luminance	0.0417 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42391C #1C2542

analogous

#42261C #42391C #38421C

triadic

#42391C #1C4239 #391C42

tetradic

#42391C #1C4226 #1C2542 #421C38

square

#42391C #1C4226 #1C2542 #421C38

split-complementary

#42391C #1C3842 #261C42

monochromatic

#151309 #17140A #42391C #6D5E2E #988340

Accessibility & contrast

On white

11.45

#42391C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#42391C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42391C

11.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42391C	#FFFFFF	#000000	##FFFFFF
##42391C	1.00	11.45	1.83	11.45
#FFFFFF	11.45	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F381A

Deuteranopia (green-blind)

#413B1D

Tritanopia (blue-blind)

#473532

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #42391c;
/* rgb */ color: rgb(66, 57, 28);
/* oklch */ color: oklch(34.7% 0.046 92.6);

Tailwind

colors: {
  custom: {
    50: '#776f59',
    500: '#42391c',
    950: '#000000',
  },
}

SCSS

$custom: #42391c;
$custom-light: #776f59;
$custom-dark: #000000;

JSON

{
  "hex": "#42391c",
  "rgb": {
    "r": 66,
    "g": 57,
    "b": 28
  },
  "hsl": {
    "h": 45.789,
    "s": 40.426,
    "l": 18.431
  },
  "oklch": {
    "l": 0.34655,
    "c": 0.04626,
    "h": 92.6
  },
  "luminance": 0.04168
}

Semantic roles & 50–950 ramp

primary

#42391C

secondary

#434F77

accent

#74D058

background

#F7F6F5

surface

#EDECE9

border

#C8C7C5

text

#090703

muted

#7B7A78

Preview Lab

Preview with #42391C

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

Preview Lab → · Contrast checker → · Palette generator →