#280703#280703

#280703 is a very dark, muted red. Relative luminance 0.006; OKLCH L 18.9% C 0.057 H 32.7°. Best body text is #FFFFFF at 18.72:1 contrast (WCAG AA passes).

Color values

HEX	#280703
RGB	rgb(40, 7, 3)
HSL	hsl(6, 86%, 8%)
HSV	hsv(6, 93%, 16%)
CMYK	cmyk(0%, 82.5%, 92.5%, 84.3%)
CIE-LAB	lab(5.51, 15.66, 7.31)
CIE-LCH	lch(5.51, 17.28, 25.03°)
OKLab	oklab(18.92% 0.0482 0.0309)
OKLCH	oklch(18.92% 0.057 32.7)
XYZ	xyz(0.9676, 0.6098, 0.1529)
Luminance	0.0061 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280703 #032428

analogous

#280311 #280703 #281903

triadic

#280703 #032807 #070328

tetradic

#280703 #112803 #032428 #190328

square

#280703 #112803 #032428 #190328

split-complementary

#280703 #032819 #031128

monochromatic

#1C0502 #1C0502 #280703 #611107 #9A1B0C

Accessibility & contrast

On white

18.72

#280703 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#280703 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280703

18.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280703	#FFFFFF	#000000	##FFFFFF
##280703	1.00	18.72	1.12	18.72
#FFFFFF	18.72	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#100D03

Deuteranopia (green-blind)

#181502

Tritanopia (blue-blind)

#2D0106

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #280703;
/* rgb */ color: rgb(40, 7, 3);
/* oklch */ color: oklch(18.9% 0.057 32.7);

Tailwind

colors: {
  custom: {
    50: '#634948',
    500: '#280703',
    950: '#000000',
  },
}

SCSS

$custom: #280703;
$custom-light: #634948;
$custom-dark: #000000;

JSON

{
  "hex": "#280703",
  "rgb": {
    "r": 40,
    "g": 7,
    "b": 3
  },
  "hsl": {
    "h": 6.486,
    "s": 86.047,
    "l": 8.431
  },
  "oklch": {
    "l": 0.18918,
    "c": 0.05727,
    "h": 32.7
  },
  "luminance": 0.0061
}

Semantic roles & 50–950 ramp

primary

#280703

secondary

#1B636C

accent

#E6FC2C

background

#F6F4F4

surface

#EBE7E6

border

#C6C3C2

text

#060100

muted

#7A7777

Preview Lab

Preview with #280703

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

Preview Lab → · Contrast checker → · Palette generator →