#290B0B#290B0B

#290B0B is a very dark, muted red. Relative luminance 0.007; OKLCH L 20.0% C 0.050 H 22.7°. Best body text is #FFFFFF at 18.31:1 contrast (WCAG AA passes).

Color values

HEX	#290B0B
RGB	rgb(41, 11, 11)
HSL	hsl(0, 58%, 10%)
HSV	hsv(0, 73%, 16%)
CMYK	cmyk(0%, 73.2%, 73.2%, 83.9%)
CIE-LAB	lab(6.64, 15.33, 5.72)
CIE-LCH	lch(6.64, 16.36, 20.45°)
OKLab	oklab(20.05% 0.0465 0.0195)
OKLCH	oklch(20.05% 0.05 22.7)
XYZ	xyz(1.0946, 0.7351, 0.4008)
Luminance	0.0073 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#290B0B #0B2929

analogous

#290B1A #290B0B #291A0B

triadic

#290B0B #0B290B #0B0B29

tetradic

#290B0B #1A290B #0B2929 #1A0B29

square

#290B0B #1A290B #0B2929 #1A0B29

split-complementary

#290B0B #0B291A #0B1A29

monochromatic

#180606 #180606 #290B0B #591818 #8A2525

Accessibility & contrast

On white

18.31

#290B0B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#290B0B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #290B0B

18.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##290B0B	#FFFFFF	#000000	##FFFFFF
##290B0B	1.00	18.31	1.15	18.31
#FFFFFF	18.31	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12110B

Deuteranopia (green-blind)

#1A170A

Tritanopia (blue-blind)

#2E060B

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #290b0b;
/* rgb */ color: rgb(41, 11, 11);
/* oklch */ color: oklch(20.0% 0.050 22.7);

Tailwind

colors: {
  custom: {
    50: '#654b4c',
    500: '#290b0b',
    950: '#000000',
  },
}

SCSS

$custom: #290b0b;
$custom-light: #654b4c;
$custom-dark: #000000;

JSON

{
  "hex": "#290b0b",
  "rgb": {
    "r": 41,
    "g": 11,
    "b": 11
  },
  "hsl": {
    "h": 0,
    "s": 57.692,
    "l": 10.196
  },
  "oklch": {
    "l": 0.20047,
    "c": 0.05046,
    "h": 22.7
  },
  "luminance": 0.00735
}

Semantic roles & 50–950 ramp

primary

#290B0B

secondary

#2B6565

accent

#E1E147

background

#F6F4F4

surface

#EBE7E7

border

#C6C3C3

text

#060101

muted

#7A7777

Preview Lab

Preview with #290B0B

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

Preview Lab → · Contrast checker → · Palette generator →