#420B18#420B18

#420B18 is a dark, moderate red. Relative luminance 0.015; OKLCH L 25.5% C 0.083 H 11.9°. Best body text is #FFFFFF at 16.24:1 contrast (WCAG AA passes).

Color values

HEX	#420B18
RGB	rgb(66, 11, 24)
HSL	hsl(346, 71%, 15%)
HSV	hsv(346, 83%, 26%)
CMYK	cmyk(0%, 83.3%, 63.6%, 74.1%)
CIE-LAB	lab(12.38, 27.01, 6.86)
CIE-LCH	lch(12.38, 27.87, 14.25°)
OKLab	oklab(25.53% 0.0816 0.0172)
OKLCH	oklch(25.53% 0.083 11.9)
XYZ	xyz(2.5316, 1.4639, 1.0132)
Luminance	0.0146 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#420B18 #0B4235

analogous

#420B34 #420B18 #42190B

triadic

#420B18 #18420B #0B1842

tetradic

#420B18 #34420B #0B4235 #190B42

square

#420B18 #34420B #0B4235 #190B42

split-complementary

#420B18 #0B4219 #0B3442

monochromatic

#1A040A #1A040A #420B18 #76142B #AB1C3E

Accessibility & contrast

On white

16.24

#420B18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#420B18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #420B18

16.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##420B18	#FFFFFF	#000000	##FFFFFF
##420B18	1.00	16.24	1.29	16.24
#FFFFFF	16.24	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191918

Deuteranopia (green-blind)

#282417

Tritanopia (blue-blind)

#490110

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #420b18;
/* rgb */ color: rgb(66, 11, 24);
/* oklch */ color: oklch(25.5% 0.083 11.9);

Tailwind

colors: {
  custom: {
    50: '#7b4f54',
    500: '#420b18',
    950: '#000000',
  },
}

SCSS

$custom: #420b18;
$custom-light: #7b4f54;
$custom-dark: #000000;

JSON

{
  "hex": "#420b18",
  "rgb": {
    "r": 66,
    "g": 11,
    "b": 24
  },
  "hsl": {
    "h": 345.818,
    "s": 71.429,
    "l": 15.098
  },
  "oklch": {
    "l": 0.25525,
    "c": 0.08343,
    "h": 11.9
  },
  "luminance": 0.01464
}

Semantic roles & 50–950 ramp

primary

#420B18

secondary

#2A7F6B

accent

#EEC33A

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0202

muted

#7C7878

Preview Lab

Preview with #420B18

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

Preview Lab → · Contrast checker → · Palette generator →