#420F0F#420F0F

#420F0F is a dark, moderate red. Relative luminance 0.015; OKLCH L 25.8% C 0.079 H 24.5°. Best body text is #FFFFFF at 16.07:1 contrast (WCAG AA passes).

Color values

HEX	#420F0F
RGB	rgb(66, 15, 15)
HSL	hsl(0, 63%, 16%)
HSV	hsv(0, 77%, 26%)
CMYK	cmyk(0%, 77.3%, 77.3%, 74.1%)
CIE-LAB	lab(12.83, 24.52, 13.30)
CIE-LCH	lch(12.83, 27.90, 28.48°)
OKLab	oklab(25.8% 0.0717 0.0327)
OKLCH	oklch(25.8% 0.079 24.5)
XYZ	xyz(2.5041, 1.5348, 0.6162)
Luminance	0.0153 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#420F0F #0F4242

analogous

#420F28 #420F0F #42280F

triadic

#420F0F #0F420F #0F0F42

tetradic

#420F0F #28420F #0F4242 #280F42

square

#420F0F #28420F #0F4242 #280F42

split-complementary

#420F0F #0F4228 #0F2842

monochromatic

#190606 #190606 #420F0F #741A1A #A62626

Accessibility & contrast

On white

16.07

#420F0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#420F0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #420F0F

16.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##420F0F	#FFFFFF	#000000	##FFFFFF
##420F0F	1.00	16.07	1.31	16.07
#FFFFFF	16.07	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D1A0F

Deuteranopia (green-blind)

#2A250D

Tritanopia (blue-blind)

#490310

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #420f0f;
/* rgb */ color: rgb(66, 15, 15);
/* oklch */ color: oklch(25.8% 0.079 24.5);

Tailwind

colors: {
  custom: {
    50: '#7b514d',
    500: '#420f0f',
    950: '#000000',
  },
}

SCSS

$custom: #420f0f;
$custom-light: #7b514d;
$custom-dark: #000000;

JSON

{
  "hex": "#420f0f",
  "rgb": {
    "r": 66,
    "g": 15,
    "b": 15
  },
  "hsl": {
    "h": 0,
    "s": 62.963,
    "l": 15.882
  },
  "oklch": {
    "l": 0.25796,
    "c": 0.0788,
    "h": 24.5
  },
  "luminance": 0.01534
}

Semantic roles & 50–950 ramp

primary

#420F0F

secondary

#307C7C

accent

#E6E642

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #420F0F

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

Preview Lab → · Contrast checker → · Palette generator →