#42170D#42170D

#42170D is a dark, moderate red. Relative luminance 0.018; OKLCH L 27.0% C 0.070 H 34.5°. Best body text is #FFFFFF at 15.44:1 contrast (WCAG AA passes).

Color values

HEX	#42170D
RGB	rgb(66, 23, 13)
HSL	hsl(11, 67%, 15%)
HSV	hsv(11, 80%, 26%)
CMYK	cmyk(0%, 65.2%, 80.3%, 74.1%)
CIE-LAB	lab(14.40, 20.11, 16.39)
CIE-LCH	lch(14.40, 25.95, 39.19°)
OKLab	oklab(26.97% 0.0574 0.0394)
OKLCH	oklch(26.97% 0.07 34.5)
XYZ	xyz(2.6261, 1.8004, 0.5899)
Luminance	0.0180 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42170D #0D3842

analogous

#420D1D #42170D #42310D

triadic

#42170D #0D4217 #170D42

tetradic

#42170D #1D420D #0D3842 #310D42

square

#42170D #1D420D #0D3842 #310D42

split-complementary

#42170D #0D4231 #0D1D42

monochromatic

#1A0905 #1A0905 #42170D #752917 #A83B21

Accessibility & contrast

On white

15.44

#42170D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#42170D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42170D

15.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42170D	#FFFFFF	#000000	##FFFFFF
##42170D	1.00	15.44	1.36	15.44
#FFFFFF	15.44	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#231F0C

Deuteranopia (green-blind)

#2D280C

Tritanopia (blue-blind)

#490E15

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #42170d;
/* rgb */ color: rgb(66, 23, 13);
/* oklch */ color: oklch(27.0% 0.070 34.5);

Tailwind

colors: {
  custom: {
    50: '#7b564c',
    500: '#42170d',
    950: '#000000',
  },
}

SCSS

$custom: #42170d;
$custom-light: #7b564c;
$custom-dark: #000000;

JSON

{
  "hex": "#42170d",
  "rgb": {
    "r": 66,
    "g": 23,
    "b": 13
  },
  "hsl": {
    "h": 11.321,
    "s": 67.089,
    "l": 15.49
  },
  "oklch": {
    "l": 0.26972,
    "c": 0.0696,
    "h": 34.5
  },
  "luminance": 0.018
}

Semantic roles & 50–950 ramp

primary

#42170D

secondary

#2D6E7E

accent

#CAEA3E

background

#F7F5F4

surface

#EEE9E7

border

#C9C5C3

text

#0A0301

muted

#7C7877

Preview Lab

Preview with #42170D

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

Preview Lab → · Contrast checker → · Palette generator →