#420C0B#420C0B

#420C0B is a dark, moderate red. Relative luminance 0.014; OKLCH L 25.4% C 0.083 H 26.2°. Best body text is #FFFFFF at 16.29:1 contrast (WCAG AA passes).

Color values

HEX	#420C0B
RGB	rgb(66, 12, 11)
HSL	hsl(1, 71%, 15%)
HSV	hsv(1, 83%, 26%)
CMYK	cmyk(0%, 81.8%, 83.3%, 74.1%)
CIE-LAB	lab(12.26, 25.67, 14.45)
CIE-LCH	lch(12.26, 29.46, 29.38°)
OKLab	oklab(25.35% 0.0743 0.0366)
OKLCH	oklch(25.35% 0.083 26.2)
XYZ	xyz(2.4389, 1.4457, 0.4672)
Luminance	0.0144 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#420C0B #0B4142

analogous

#420B25 #420C0B #42270B

triadic

#420C0B #0B420C #0C0B42

tetradic

#420C0B #25420B #0B4142 #270B42

square

#420C0B #25420B #0B4142 #270B42

split-complementary

#420C0B #0B4227 #0B2542

monochromatic

#1A0504 #1A0504 #420C0B #761614 #AB1F1C

Accessibility & contrast

On white

16.29

#420C0B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#420C0B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #420C0B

16.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##420C0B	#FFFFFF	#000000	##FFFFFF
##420C0B	1.00	16.29	1.29	16.29
#FFFFFF	16.29	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C190A

Deuteranopia (green-blind)

#292409

Tritanopia (blue-blind)

#49000C

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #420c0b;
/* rgb */ color: rgb(66, 12, 11);
/* oklch */ color: oklch(25.4% 0.083 26.2);

Tailwind

colors: {
  custom: {
    50: '#7b4f4b',
    500: '#420c0b',
    950: '#000000',
  },
}

SCSS

$custom: #420c0b;
$custom-light: #7b4f4b;
$custom-dark: #000000;

JSON

{
  "hex": "#420c0b",
  "rgb": {
    "r": 66,
    "g": 12,
    "b": 11
  },
  "hsl": {
    "h": 1.091,
    "s": 71.429,
    "l": 15.098
  },
  "oklch": {
    "l": 0.2535,
    "c": 0.08281,
    "h": 26.2
  },
  "luminance": 0.01445
}

Semantic roles & 50–950 ramp

primary

#420C0B

secondary

#2A7D7F

accent

#EBEE3A

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #420C0B

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

Preview Lab → · Contrast checker → · Palette generator →