#42090B#42090B

#42090B is a dark, moderate red. Relative luminance 0.014; OKLCH L 25.0% C 0.086 H 24.4°. Best body text is #FFFFFF at 16.46:1 contrast (WCAG AA passes).

Color values

HEX	#42090B
RGB	rgb(66, 9, 11)
HSL	hsl(358, 76%, 15%)
HSV	hsv(358, 86%, 26%)
CMYK	cmyk(0%, 86.4%, 83.3%, 74.1%)
CIE-LAB	lab(11.81, 26.91, 13.84)
CIE-LCH	lch(11.81, 30.27, 27.22°)
OKLab	oklab(25.02% 0.0782 0.0355)
OKLCH	oklch(25.02% 0.086 24.4)
XYZ	xyz(2.4051, 1.3782, 0.4559)
Luminance	0.0138 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42090B #094240

analogous

#420928 #42090B #422409

triadic

#42090B #0B4209 #090B42

tetradic

#42090B #284209 #094240 #240942

square

#42090B #284209 #094240 #240942

split-complementary

#42090B #094224 #092842

monochromatic

#1B0404 #1B0404 #42090B #781014 #AE181D

Accessibility & contrast

On white

16.46

#42090B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#42090B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42090B

16.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42090B	#FFFFFF	#000000	##FFFFFF
##42090B	1.00	16.46	1.28	16.46
#FFFFFF	16.46	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A170A

Deuteranopia (green-blind)

#282409

Tritanopia (blue-blind)

#4A000A

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #42090b;
/* rgb */ color: rgb(66, 9, 11);
/* oklch */ color: oklch(25.0% 0.086 24.4);

Tailwind

colors: {
  custom: {
    50: '#7c4e4b',
    500: '#42090b',
    950: '#000000',
  },
}

SCSS

$custom: #42090b;
$custom-light: #7c4e4b;
$custom-dark: #000000;

JSON

{
  "hex": "#42090b",
  "rgb": {
    "r": 66,
    "g": 9,
    "b": 11
  },
  "hsl": {
    "h": 357.895,
    "s": 76,
    "l": 14.706
  },
  "oklch": {
    "l": 0.25017,
    "c": 0.08589,
    "h": 24.4
  },
  "luminance": 0.01378
}

Semantic roles & 50–950 ramp

primary

#42090B

secondary

#27807D

accent

#F3EC35

background

#F8F4F4

surface

#EFE7E7

border

#CAC3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #42090B

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

Preview Lab → · Contrast checker → · Palette generator →