#420B17#420B17

#420B17 is a dark, moderate red. Relative luminance 0.015; OKLCH L 25.5% C 0.083 H 13.0°. Best body text is #FFFFFF at 16.26:1 contrast (WCAG AA passes).

Color values

HEX	#420B17
RGB	rgb(66, 11, 23)
HSL	hsl(347, 71%, 15%)
HSV	hsv(347, 83%, 26%)
CMYK	cmyk(0%, 83.3%, 65.2%, 74.1%)
CIE-LAB	lab(12.35, 26.92, 7.57)
CIE-LCH	lch(12.35, 27.96, 15.71°)
OKLab	oklab(25.5% 0.0812 0.0188)
OKLCH	oklch(25.5% 0.083 13)
XYZ	xyz(2.5213, 1.4598, 0.9595)
Luminance	0.0146 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#420B17 #0B4236

analogous

#420B33 #420B17 #421A0B

triadic

#420B17 #17420B #0B1742

tetradic

#420B17 #33420B #0B4236 #1A0B42

square

#420B17 #33420B #0B4236 #1A0B42

split-complementary

#420B17 #0B421A #0B3342

monochromatic

#1A0409 #1A0409 #420B17 #761429 #AB1C3C

Accessibility & contrast

On white

16.26

#420B17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#420B17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #420B17

16.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##420B17	#FFFFFF	#000000	##FFFFFF
##420B17	1.00	16.26	1.29	16.26
#FFFFFF	16.26	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1917

Deuteranopia (green-blind)

#282416

Tritanopia (blue-blind)

#490010

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #420b17;
/* rgb */ color: rgb(66, 11, 23);
/* oklch */ color: oklch(25.5% 0.083 13.0);

Tailwind

colors: {
  custom: {
    50: '#7b4f53',
    500: '#420b17',
    950: '#000000',
  },
}

SCSS

$custom: #420b17;
$custom-light: #7b4f53;
$custom-dark: #000000;

JSON

{
  "hex": "#420b17",
  "rgb": {
    "r": 66,
    "g": 11,
    "b": 23
  },
  "hsl": {
    "h": 346.909,
    "s": 71.429,
    "l": 15.098
  },
  "oklch": {
    "l": 0.25497,
    "c": 0.08332,
    "h": 13
  },
  "luminance": 0.01459
}

Semantic roles & 50–950 ramp

primary

#420B17

secondary

#2A7F6C

accent

#EEC73A

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0202

muted

#7C7878

Preview Lab

Preview with #420B17

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

Preview Lab → · Contrast checker → · Palette generator →