#280D0B#280D0B

#280D0B is a very dark, muted red. Relative luminance 0.008; OKLCH L 20.2% C 0.046 H 26.2°. Best body text is #FFFFFF at 18.22:1 contrast (WCAG AA passes).

Color values

HEX	#280D0B
RGB	rgb(40, 13, 11)
HSL	hsl(4, 57%, 10%)
HSV	hsv(4, 73%, 16%)
CMYK	cmyk(0%, 67.5%, 72.5%, 84.3%)
CIE-LAB	lab(6.89, 13.71, 6.07)
CIE-LCH	lch(6.89, 14.99, 23.87°)
OKLab	oklab(20.22% 0.0412 0.0203)
OKLCH	oklch(20.22% 0.046 26.2)
XYZ	xyz(1.0795, 0.7633, 0.4070)
Luminance	0.0076 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280D0B #0B2628

analogous

#280B17 #280D0B #281C0B

triadic

#280D0B #0B280D #0D0B28

tetradic

#280D0B #17280B #0B2628 #1C0B28

square

#280D0B #17280B #0B2628 #1C0B28

split-complementary

#280D0B #0B281C #0B1728

monochromatic

#180807 #180807 #280D0B #581D18 #882C25

Accessibility & contrast

On white

18.22

#280D0B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#280D0B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280D0B

18.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280D0B	#FFFFFF	#000000	##FFFFFF
##280D0B	1.00	18.22	1.15	18.22
#FFFFFF	18.22	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14120B

Deuteranopia (green-blind)

#1A170A

Tritanopia (blue-blind)

#2D080D

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #280d0b;
/* rgb */ color: rgb(40, 13, 11);
/* oklch */ color: oklch(20.2% 0.046 26.2);

Tailwind

colors: {
  custom: {
    50: '#634c4c',
    500: '#280d0b',
    950: '#000000',
  },
}

SCSS

$custom: #280d0b;
$custom-light: #634c4c;
$custom-dark: #000000;

JSON

{
  "hex": "#280d0b",
  "rgb": {
    "r": 40,
    "g": 13,
    "b": 11
  },
  "hsl": {
    "h": 4.138,
    "s": 56.863,
    "l": 10
  },
  "oklch": {
    "l": 0.20221,
    "c": 0.04592,
    "h": 26.2
  },
  "luminance": 0.00763
}

Semantic roles & 50–950 ramp

primary

#280D0B

secondary

#2B6064

accent

#D6E048

background

#F6F4F4

surface

#EBE7E7

border

#C6C3C3

text

#050101

muted

#7A7777

Preview Lab

Preview with #280D0B

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

Preview Lab → · Contrast checker → · Palette generator →