#420D0D#420D0D

#420D0D is a dark, moderate red. Relative luminance 0.015; OKLCH L 25.5% C 0.081 H 25.1°. Best body text is #FFFFFF at 16.22:1 contrast (WCAG AA passes).

Color values

HEX	#420D0D
RGB	rgb(66, 13, 13)
HSL	hsl(0, 67%, 15%)
HSV	hsv(0, 80%, 26%)
CMYK	cmyk(0%, 80.3%, 80.3%, 74.1%)
CIE-LAB	lab(12.45, 25.34, 13.80)
CIE-LCH	lch(12.45, 28.85, 28.58°)
OKLab	oklab(25.5% 0.0738 0.0345)
OKLCH	oklch(25.5% 0.081 25.1)
XYZ	xyz(2.4636, 1.4755, 0.5358)
Luminance	0.0147 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#420D0D #0D4242

analogous

#420D27 #420D0D #42270D

triadic

#420D0D #0D420D #0D0D42

tetradic

#420D0D #27420D #0D4242 #270D42

square

#420D0D #27420D #0D4242 #270D42

split-complementary

#420D0D #0D4227 #0D2742

monochromatic

#1A0505 #1A0505 #420D0D #751717 #A82121

Accessibility & contrast

On white

16.22

#420D0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#420D0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #420D0D

16.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##420D0D	#FFFFFF	#000000	##FFFFFF
##420D0D	1.00	16.22	1.30	16.22
#FFFFFF	16.22	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C190C

Deuteranopia (green-blind)

#29250B

Tritanopia (blue-blind)

#49000E

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #420d0d;
/* rgb */ color: rgb(66, 13, 13);
/* oklch */ color: oklch(25.5% 0.081 25.1);

Tailwind

colors: {
  custom: {
    50: '#7b504c',
    500: '#420d0d',
    950: '#000000',
  },
}

SCSS

$custom: #420d0d;
$custom-light: #7b504c;
$custom-dark: #000000;

JSON

{
  "hex": "#420d0d",
  "rgb": {
    "r": 66,
    "g": 13,
    "b": 13
  },
  "hsl": {
    "h": 0,
    "s": 67.089,
    "l": 15.49
  },
  "oklch": {
    "l": 0.25504,
    "c": 0.08141,
    "h": 25.1
  },
  "luminance": 0.01475
}

Semantic roles & 50–950 ramp

primary

#420D0D

secondary

#2D7E7E

accent

#EAEA3E

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #420D0D

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

Preview Lab → · Contrast checker → · Palette generator →