#280B11#280B11

#280B11 is a very dark, muted red. Relative luminance 0.007; OKLCH L 20.0% C 0.049 H 9.8°. Best body text is #FFFFFF at 18.32:1 contrast (WCAG AA passes).

Color values

HEX	#280B11
RGB	rgb(40, 11, 17)
HSL	hsl(348, 57%, 10%)
HSV	hsv(348, 73%, 16%)
CMYK	cmyk(0%, 72.5%, 57.5%, 84.3%)
CIE-LAB	lab(6.60, 15.53, 2.61)
CIE-LCH	lch(6.60, 15.75, 9.54°)
OKLab	oklab(20.03% 0.0483 0.0084)
OKLCH	oklch(20.03% 0.049 9.8)
XYZ	xyz(1.0960, 0.7311, 0.6136)
Luminance	0.0073 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280B11 #0B2822

analogous

#280B20 #280B11 #28130B

triadic

#280B11 #11280B #0B1128

tetradic

#280B11 #20280B #0B2822 #130B28

square

#280B11 #20280B #0B2822 #130B28

split-complementary

#280B11 #0B2813 #0B2028

monochromatic

#18070A #18070A #280B11 #581825 #88253A

Accessibility & contrast

On white

18.32

#280B11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#280B11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280B11

18.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280B11	#FFFFFF	#000000	##FFFFFF
##280B11	1.00	18.32	1.15	18.32
#FFFFFF	18.32	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#111111

Deuteranopia (green-blind)

#181710

Tritanopia (blue-blind)

#2C080D

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #280b11;
/* rgb */ color: rgb(40, 11, 17);
/* oklch */ color: oklch(20.0% 0.049 9.8);

Tailwind

colors: {
  custom: {
    50: '#634b4f',
    500: '#280b11',
    950: '#000000',
  },
}

SCSS

$custom: #280b11;
$custom-light: #634b4f;
$custom-dark: #000000;

JSON

{
  "hex": "#280b11",
  "rgb": {
    "r": 40,
    "g": 11,
    "b": 17
  },
  "hsl": {
    "h": 347.586,
    "s": 56.863,
    "l": 10
  },
  "oklch": {
    "l": 0.2003,
    "c": 0.04902,
    "h": 9.8
  },
  "luminance": 0.00731
}

Semantic roles & 50–950 ramp

primary

#280B11

secondary

#2B6458

accent

#E0C148

background

#F6F4F4

surface

#EBE7E7

border

#C6C3C3

text

#050101

muted

#7A7777

Preview Lab

Preview with #280B11

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

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