#280C03#280C03

#280C03 is a very dark, muted red. Relative luminance 0.007; OKLCH L 19.8% C 0.051 H 41.2°. Best body text is #FFFFFF at 18.35:1 contrast (WCAG AA passes).

Color values

HEX	#280C03
RGB	rgb(40, 12, 3)
HSL	hsl(15, 86%, 8%)
HSV	hsv(15, 93%, 16%)
CMYK	cmyk(0%, 70%, 92.5%, 84.3%)
CIE-LAB	lab(6.51, 13.37, 8.77)
CIE-LCH	lch(6.51, 15.99, 33.28°)
OKLab	oklab(19.84% 0.0384 0.0336)
OKLCH	oklch(19.84% 0.051 41.2)
XYZ	xyz(1.0231, 0.7208, 0.1714)
Luminance	0.0072 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280C03 #031F28

analogous

#28030C #280C03 #281E03

triadic

#280C03 #03280C #0C0328

tetradic

#280C03 #0C2803 #031F28 #1E0328

square

#280C03 #0C2803 #031F28 #1E0328

split-complementary

#280C03 #03281E #030C28

monochromatic

#1C0902 #1C0902 #280C03 #611D07 #9A2E0C

Accessibility & contrast

On white

18.35

#280C03 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#280C03 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280C03

18.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280C03	#FFFFFF	#000000	##FFFFFF
##280C03	1.00	18.35	1.14	18.35
#FFFFFF	18.35	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#141102

Deuteranopia (green-blind)

#1B1703

Tritanopia (blue-blind)

#2D060A

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #280c03;
/* rgb */ color: rgb(40, 12, 3);
/* oklch */ color: oklch(19.8% 0.051 41.2);

Tailwind

colors: {
  custom: {
    50: '#634c48',
    500: '#280c03',
    950: '#000000',
  },
}

SCSS

$custom: #280c03;
$custom-light: #634c48;
$custom-dark: #000000;

JSON

{
  "hex": "#280c03",
  "rgb": {
    "r": 40,
    "g": 12,
    "b": 3
  },
  "hsl": {
    "h": 14.595,
    "s": 86.047,
    "l": 8.431
  },
  "oklch": {
    "l": 0.19836,
    "c": 0.05096,
    "h": 41.2
  },
  "luminance": 0.00721
}

Semantic roles & 50–950 ramp

primary

#280C03

secondary

#1B586C

accent

#C9FC2C

background

#F6F4F4

surface

#EBE7E6

border

#C6C3C2

text

#050100

muted

#7A7777

Preview Lab

Preview with #280C03

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

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