#280C0B#280C0B

#280C0B is a very dark, muted red. Relative luminance 0.007; OKLCH L 20.0% C 0.047 H 24.3°. Best body text is #FFFFFF at 18.30:1 contrast (WCAG AA passes).

Color values

HEX	#280C0B
RGB	rgb(40, 12, 11)
HSL	hsl(2, 57%, 10%)
HSV	hsv(2, 73%, 16%)
CMYK	cmyk(0%, 70%, 72.5%, 84.3%)
CIE-LAB	lab(6.67, 14.24, 5.74)
CIE-LCH	lch(6.67, 15.35, 21.94°)
OKLab	oklab(20.03% 0.0432 0.0196)
OKLCH	oklch(20.03% 0.047 24.3)
XYZ	xyz(1.0670, 0.7384, 0.4029)
Luminance	0.0074 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280C0B #0B2728

analogous

#280B18 #280C0B #281B0B

triadic

#280C0B #0B280C #0C0B28

tetradic

#280C0B #18280B #0B2728 #1B0B28

square

#280C0B #18280B #0B2728 #1B0B28

split-complementary

#280C0B #0B281B #0B1828

monochromatic

#180707 #180707 #280C0B #581A18 #882925

Accessibility & contrast

On white

18.30

#280C0B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#280C0B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280C0B

18.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280C0B	#FFFFFF	#000000	##FFFFFF
##280C0B	1.00	18.30	1.15	18.30
#FFFFFF	18.30	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13110B

Deuteranopia (green-blind)

#1A170A

Tritanopia (blue-blind)

#2D070C

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #280c0b;
/* rgb */ color: rgb(40, 12, 11);
/* oklch */ color: oklch(20.0% 0.047 24.3);

Tailwind

colors: {
  custom: {
    50: '#634c4c',
    500: '#280c0b',
    950: '#000000',
  },
}

SCSS

$custom: #280c0b;
$custom-light: #634c4c;
$custom-dark: #000000;

JSON

{
  "hex": "#280c0b",
  "rgb": {
    "r": 40,
    "g": 12,
    "b": 11
  },
  "hsl": {
    "h": 2.069,
    "s": 56.863,
    "l": 10
  },
  "oklch": {
    "l": 0.20031,
    "c": 0.04744,
    "h": 24.3
  },
  "luminance": 0.00738
}

Semantic roles & 50–950 ramp

primary

#280C0B

secondary

#2B6264

accent

#DBE048

background

#F6F4F4

surface

#EBE7E7

border

#C6C3C3

text

#050101

muted

#7A7777

Preview Lab

Preview with #280C0B

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

Preview Lab → · Contrast checker → · Palette generator →