#280903#280903

#280903 is a very dark, muted red. Relative luminance 0.007; OKLCH L 19.3% C 0.055 H 35.9°. Best body text is #FFFFFF at 18.57:1 contrast (WCAG AA passes).

Color values

HEX	#280903
RGB	rgb(40, 9, 3)
HSL	hsl(10, 86%, 8%)
HSV	hsv(10, 93%, 16%)
CMYK	cmyk(0%, 77.5%, 92.5%, 84.3%)
CIE-LAB	lab(5.90, 14.77, 7.88)
CIE-LCH	lch(5.90, 16.74, 28.09°)
OKLab	oklab(19.29% 0.0442 0.032)
OKLCH	oklch(19.29% 0.055 35.9)
XYZ	xyz(0.9893, 0.6532, 0.1601)
Luminance	0.0065 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280903 #032228

analogous

#28030F #280903 #281B03

triadic

#280903 #032809 #090328

tetradic

#280903 #0F2803 #032228 #1B0328

square

#280903 #0F2803 #032228 #1B0328

split-complementary

#280903 #03281B #030F28

monochromatic

#1C0602 #1C0602 #280903 #611607 #9A230C

Accessibility & contrast

On white

18.57

#280903 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#280903 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280903

18.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280903	#FFFFFF	#000000	##FFFFFF
##280903	1.00	18.57	1.13	18.57
#FFFFFF	18.57	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#120F02

Deuteranopia (green-blind)

#191602

Tritanopia (blue-blind)

#2D0307

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #280903;
/* rgb */ color: rgb(40, 9, 3);
/* oklch */ color: oklch(19.3% 0.055 35.9);

Tailwind

colors: {
  custom: {
    50: '#634a48',
    500: '#280903',
    950: '#000000',
  },
}

SCSS

$custom: #280903;
$custom-light: #634a48;
$custom-dark: #000000;

JSON

{
  "hex": "#280903",
  "rgb": {
    "r": 40,
    "g": 9,
    "b": 3
  },
  "hsl": {
    "h": 9.73,
    "s": 86.047,
    "l": 8.431
  },
  "oklch": {
    "l": 0.19288,
    "c": 0.05452,
    "h": 35.9
  },
  "luminance": 0.00653
}

Semantic roles & 50–950 ramp

primary

#280903

secondary

#1B5F6C

accent

#DAFC2C

background

#F6F4F4

surface

#EBE7E6

border

#C6C3C2

text

#060100

muted

#7A7777

Preview Lab

Preview with #280903

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

Preview Lab → · Contrast checker → · Palette generator →