#42151D#42151D

#42151D is a dark, moderate red. Relative luminance 0.018; OKLCH L 27.0% C 0.070 H 12.3°. Best body text is #FFFFFF at 15.48:1 contrast (WCAG AA passes).

Color values

HEX	#42151D
RGB	rgb(66, 21, 29)
HSL	hsl(349, 52%, 17%)
HSV	hsv(349, 68%, 26%)
CMYK	cmyk(0%, 68.2%, 56.1%, 74.1%)
CIE-LAB	lab(14.31, 22.62, 5.82)
CIE-LCH	lch(14.31, 23.35, 14.44°)
OKLab	oklab(27.01% 0.0684 0.0149)
OKLCH	oklch(27.01% 0.07 12.3)
XYZ	xyz(2.7369, 1.7836, 1.3623)
Luminance	0.0178 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42151D #15423A

analogous

#421534 #42151D #422415

triadic

#42151D #1D4215 #151D42

tetradic

#42151D #344215 #15423A #241542

square

#42151D #344215 #15423A #241542

split-complementary

#42151D #154224 #153442

monochromatic

#17070A #17070A #42151D #702431 #9F3346

Accessibility & contrast

On white

15.48

#42151D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#42151D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42151D

15.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42151D	#FFFFFF	#000000	##FFFFFF
##42151D	1.00	15.48	1.36	15.48
#FFFFFF	15.48	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F1F1D

Deuteranopia (green-blind)

#2B281C

Tritanopia (blue-blind)

#480E18

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #42151d;
/* rgb */ color: rgb(66, 21, 29);
/* oklch */ color: oklch(27.0% 0.070 12.3);

Tailwind

colors: {
  custom: {
    50: '#795558',
    500: '#42151d',
    950: '#000000',
  },
}

SCSS

$custom: #42151d;
$custom-light: #795558;
$custom-dark: #000000;

JSON

{
  "hex": "#42151d",
  "rgb": {
    "r": 66,
    "g": 21,
    "b": 29
  },
  "hsl": {
    "h": 349.333,
    "s": 51.724,
    "l": 17.059
  },
  "oklch": {
    "l": 0.27009,
    "c": 0.07001,
    "h": 12.3
  },
  "luminance": 0.01783
}

Semantic roles & 50–950 ramp

primary

#42151D

secondary

#397A6E

accent

#DBC24D

background

#F7F5F5

surface

#EEE9E9

border

#C9C5C5

text

#090303

muted

#7B7878

Preview Lab

Preview with #42151D

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

Preview Lab → · Contrast checker → · Palette generator →