#420A0F#420A0F

#420A0F is a dark, moderate red. Relative luminance 0.014; OKLCH L 25.2% C 0.084 H 21.2°. Best body text is #FFFFFF at 16.38:1 contrast (WCAG AA passes).

Color values

HEX	#420A0F
RGB	rgb(66, 10, 15)
HSL	hsl(355, 74%, 15%)
HSV	hsv(355, 85%, 26%)
CMYK	cmyk(0%, 84.8%, 77.3%, 74.1%)
CIE-LAB	lab(12.03, 26.74, 12.22)
CIE-LCH	lch(12.03, 29.39, 24.56°)
OKLab	oklab(25.2% 0.0787 0.0306)
OKLCH	oklch(25.2% 0.084 21.2)
XYZ	xyz(2.4418, 1.4102, 0.5955)
Luminance	0.0141 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#420A0F #0A423D

analogous

#420A2B #420A0F #42210A

triadic

#420A0F #0F420A #0A0F42

tetradic

#420A0F #2B420A #0A423D #210A42

square

#420A0F #2B420A #0A423D #210A42

split-complementary

#420A0F #0A4221 #0A2B42

monochromatic

#1B0406 #1B0406 #420A0F #77121B #AC1A27

Accessibility & contrast

On white

16.38

#420A0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#420A0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #420A0F

16.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##420A0F	#FFFFFF	#000000	##FFFFFF
##420A0F	1.00	16.38	1.28	16.38
#FFFFFF	16.38	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A180F

Deuteranopia (green-blind)

#28240D

Tritanopia (blue-blind)

#49000C

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #420a0f;
/* rgb */ color: rgb(66, 10, 15);
/* oklch */ color: oklch(25.2% 0.084 21.2);

Tailwind

colors: {
  custom: {
    50: '#7b4f4d',
    500: '#420a0f',
    950: '#000000',
  },
}

SCSS

$custom: #420a0f;
$custom-light: #7b4f4d;
$custom-dark: #000000;

JSON

{
  "hex": "#420a0f",
  "rgb": {
    "r": 66,
    "g": 10,
    "b": 15
  },
  "hsl": {
    "h": 354.643,
    "s": 73.684,
    "l": 14.902
  },
  "oklch": {
    "l": 0.25198,
    "c": 0.08443,
    "h": 21.2
  },
  "luminance": 0.0141
}

Semantic roles & 50–950 ramp

primary

#420A0F

secondary

#297F77

accent

#F0E037

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #420A0F

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

Preview Lab → · Contrast checker → · Palette generator →