#290D0B#290D0B

#290D0B is a very dark, muted red. Relative luminance 0.008; OKLCH L 20.4% C 0.047 H 26.2°. Best body text is #FFFFFF at 18.16:1 contrast (WCAG AA passes).

Color values

HEX	#290D0B
RGB	rgb(41, 13, 11)
HSL	hsl(4, 58%, 10%)
HSV	hsv(4, 73%, 16%)
CMYK	cmyk(0%, 68.3%, 73.2%, 83.9%)
CIE-LAB	lab(7.08, 14.27, 6.36)
CIE-LCH	lch(7.08, 15.62, 24.01°)
OKLab	oklab(20.41% 0.0426 0.021)
OKLCH	oklch(20.41% 0.047 26.2)
XYZ	xyz(1.1189, 0.7836, 0.4089)
Luminance	0.0078 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#290D0B #0B2729

analogous

#290B18 #290D0B #291C0B

triadic

#290D0B #0B290D #0D0B29

tetradic

#290D0B #18290B #0B2729 #1C0B29

square

#290D0B #18290B #0B2729 #1C0B29

split-complementary

#290D0B #0B291C #0B1829

monochromatic

#180806 #180806 #290D0B #591C18 #8A2C25

Accessibility & contrast

On white

18.16

#290D0B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#290D0B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #290D0B

18.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##290D0B	#FFFFFF	#000000	##FFFFFF
##290D0B	1.00	18.16	1.16	18.16
#FFFFFF	18.16	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14120B

Deuteranopia (green-blind)

#1B180A

Tritanopia (blue-blind)

#2E080D

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #290d0b;
/* rgb */ color: rgb(41, 13, 11);
/* oklch */ color: oklch(20.4% 0.047 26.2);

Tailwind

colors: {
  custom: {
    50: '#644c4c',
    500: '#290d0b',
    950: '#000000',
  },
}

SCSS

$custom: #290d0b;
$custom-light: #644c4c;
$custom-dark: #000000;

JSON

{
  "hex": "#290d0b",
  "rgb": {
    "r": 41,
    "g": 13,
    "b": 11
  },
  "hsl": {
    "h": 4,
    "s": 57.692,
    "l": 10.196
  },
  "oklch": {
    "l": 0.20413,
    "c": 0.04745,
    "h": 26.2
  },
  "luminance": 0.00783
}

Semantic roles & 50–950 ramp

primary

#290D0B

secondary

#2B6165

accent

#D7E147

background

#F6F4F4

surface

#EBE7E7

border

#C6C3C3

text

#060101

muted

#7A7777

Preview Lab

Preview with #290D0B

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

Preview Lab → · Contrast checker → · Palette generator →