#42090A#42090A

#42090A is a dark, moderate red. Relative luminance 0.014; OKLCH L 25.0% C 0.086 H 25.2°. Best body text is #FFFFFF at 16.47:1 contrast (WCAG AA passes).

Color values

HEX	#42090A
RGB	rgb(66, 9, 10)
HSL	hsl(359, 76%, 15%)
HSV	hsv(359, 86%, 26%)
CMYK	cmyk(0%, 86.4%, 84.8%, 74.1%)
CIE-LAB	lab(11.80, 26.87, 14.24)
CIE-LCH	lch(11.80, 30.41, 27.93°)
OKLab	oklab(25% 0.0778 0.0367)
OKLCH	oklch(25% 0.086 25.2)
XYZ	xyz(2.3995, 1.3759, 0.4263)
Luminance	0.0138 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42090A #094241

analogous

#420927 #42090A #422409

triadic

#42090A #0A4209 #090A42

tetradic

#42090A #274209 #094241 #240942

square

#42090A #274209 #094241 #240942

split-complementary

#42090A #094224 #092742

monochromatic

#1B0404 #1B0404 #42090A #781012 #AE181A

Accessibility & contrast

On white

16.47

#42090A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#42090A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42090A

16.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42090A	#FFFFFF	#000000	##FFFFFF
##42090A	1.00	16.47	1.28	16.47
#FFFFFF	16.47	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1709

Deuteranopia (green-blind)

#282408

Tritanopia (blue-blind)

#4A000A

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #42090a;
/* rgb */ color: rgb(66, 9, 10);
/* oklch */ color: oklch(25.0% 0.086 25.2);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#42090a",
  "rgb": {
    "r": 66,
    "g": 9,
    "b": 10
  },
  "hsl": {
    "h": 358.947,
    "s": 76,
    "l": 14.706
  },
  "oklch": {
    "l": 0.25001,
    "c": 0.08602,
    "h": 25.2
  },
  "luminance": 0.01376
}

Semantic roles & 50–950 ramp

primary

#42090A

secondary

#27807E

accent

#F3EF35

background

#F8F4F4

surface

#EFE7E7

border

#CAC3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #42090A

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

Preview Lab → · Contrast checker → · Palette generator →