#420B0C#420B0C

#420B0C is a dark, moderate red. Relative luminance 0.014; OKLCH L 25.3% C 0.084 H 24.7°. Best body text is #FFFFFF at 16.34:1 contrast (WCAG AA passes).

Color values

HEX	#420B0C
RGB	rgb(66, 11, 12)
HSL	hsl(359, 71%, 15%)
HSV	hsv(359, 83%, 26%)
CMYK	cmyk(0%, 83.3%, 81.8%, 74.1%)
CIE-LAB	lab(12.12, 26.15, 13.82)
CIE-LCH	lch(12.12, 29.58, 27.86°)
OKLab	oklab(25.25% 0.0761 0.035)
OKLCH	oklch(25.25% 0.084 24.7)
XYZ	xyz(2.4331, 1.4245, 0.4946)
Luminance	0.0142 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#420B0C #0B4241

analogous

#420B27 #420B0C #42250B

triadic

#420B0C #0C420B #0B0C42

tetradic

#420B0C #27420B #0B4241 #250B42

square

#420B0C #27420B #0B4241 #250B42

split-complementary

#420B0C #0B4225 #0B2742

monochromatic

#1A0405 #1A0405 #420B0C #761416 #AB1C1F

Accessibility & contrast

On white

16.34

#420B0C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#420B0C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #420B0C

16.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##420B0C	#FFFFFF	#000000	##FFFFFF
##420B0C	1.00	16.34	1.28	16.34
#FFFFFF	16.34	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B180B

Deuteranopia (green-blind)

#29240A

Tritanopia (blue-blind)

#49000C

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #420b0c;
/* rgb */ color: rgb(66, 11, 12);
/* oklch */ color: oklch(25.3% 0.084 24.7);

Tailwind

colors: {
  custom: {
    50: '#7c4f4c',
    500: '#420b0c',
    950: '#000000',
  },
}

SCSS

$custom: #420b0c;
$custom-light: #7c4f4c;
$custom-dark: #000000;

JSON

{
  "hex": "#420b0c",
  "rgb": {
    "r": 66,
    "g": 11,
    "b": 12
  },
  "hsl": {
    "h": 358.909,
    "s": 71.429,
    "l": 15.098
  },
  "oklch": {
    "l": 0.25252,
    "c": 0.08371,
    "h": 24.7
  },
  "luminance": 0.01424
}

Semantic roles & 50–950 ramp

primary

#420B0C

secondary

#2A7F7D

accent

#EEEB3A

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #420B0C

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

Preview Lab → · Contrast checker → · Palette generator →