#420B0D#420B0D

#420B0D is a dark, moderate red. Relative luminance 0.014; OKLCH L 25.3% C 0.084 H 23.7°. Best body text is #FFFFFF at 16.34:1 contrast (WCAG AA passes).

Color values

HEX	#420B0D
RGB	rgb(66, 11, 13)
HSL	hsl(358, 71%, 15%)
HSV	hsv(358, 83%, 26%)
CMYK	cmyk(0%, 83.3%, 80.3%, 74.1%)
CIE-LAB	lab(12.14, 26.21, 13.38)
CIE-LCH	lch(12.14, 29.43, 27.04°)
OKLab	oklab(25.27% 0.0765 0.0337)
OKLCH	oklch(25.27% 0.084 23.7)
XYZ	xyz(2.4394, 1.4270, 0.5277)
Luminance	0.0143 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#420B0D #0B4240

analogous

#420B29 #420B0D #42240B

triadic

#420B0D #0D420B #0B0D42

tetradic

#420B0D #29420B #0B4240 #240B42

square

#420B0D #29420B #0B4240 #240B42

split-complementary

#420B0D #0B4224 #0B2942

monochromatic

#1A0405 #1A0405 #420B0D #761417 #AB1C22

Accessibility & contrast

On white

16.34

#420B0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#420B0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #420B0D

16.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##420B0D	#FFFFFF	#000000	##FFFFFF
##420B0D	1.00	16.34	1.29	16.34
#FFFFFF	16.34	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B180D

Deuteranopia (green-blind)

#29240B

Tritanopia (blue-blind)

#49000C

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #420b0d;
/* rgb */ color: rgb(66, 11, 13);
/* oklch */ color: oklch(25.3% 0.084 23.7);

Tailwind

colors: {
  custom: {
    50: '#7b4f4c',
    500: '#420b0d',
    950: '#000000',
  },
}

SCSS

$custom: #420b0d;
$custom-light: #7b4f4c;
$custom-dark: #000000;

JSON

{
  "hex": "#420b0d",
  "rgb": {
    "r": 66,
    "g": 11,
    "b": 13
  },
  "hsl": {
    "h": 357.818,
    "s": 71.429,
    "l": 15.098
  },
  "oklch": {
    "l": 0.25269,
    "c": 0.08359,
    "h": 23.7
  },
  "luminance": 0.01427
}

Semantic roles & 50–950 ramp

primary

#420B0D

secondary

#2A7F7C

accent

#EEE83A

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #420B0D

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

Preview Lab → · Contrast checker → · Palette generator →