#280401#280401

#280401 is a very dark, moderate red. Relative luminance 0.005; OKLCH L 18.3% C 0.063 H 32.7°. Best body text is #FFFFFF at 18.95:1 contrast (WCAG AA passes).

Color values

HEX	#280401
RGB	rgb(40, 4, 1)
HSL	hsl(5, 95%, 8%)
HSV	hsv(5, 98%, 16%)
CMYK	cmyk(0%, 90%, 97.5%, 84.3%)
CIE-LAB	lab(4.88, 16.71, 7.21)
CIE-LCH	lch(4.88, 18.20, 23.33°)
OKLab	oklab(18.27% 0.0531 0.034)
OKLCH	oklch(18.27% 0.063 32.7)
XYZ	xyz(0.9241, 0.5403, 0.0843)
Luminance	0.0054 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280401 #012528

analogous

#280111 #280401 #281701

triadic

#280401 #012804 #040128

tetradic

#280401 #112801 #012528 #170128

square

#280401 #112801 #012528 #170128

split-complementary

#280401 #012817 #011128

monochromatic

#1E0301 #1E0301 #280401 #640A02 #9F1004

Accessibility & contrast

On white

18.95

#280401 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#280401 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280401

18.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280401	#FFFFFF	#000000	##FFFFFF
##280401	1.00	18.95	1.11	18.95
#FFFFFF	18.95	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E0B01

Deuteranopia (green-blind)

#171400

Tritanopia (blue-blind)

#2D0003

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #280401;
/* rgb */ color: rgb(40, 4, 1);
/* oklch */ color: oklch(18.3% 0.063 32.7);

Tailwind

colors: {
  custom: {
    50: '#634847',
    500: '#280401',
    950: '#000000',
  },
}

SCSS

$custom: #280401;
$custom-light: #634847;
$custom-dark: #000000;

JSON

{
  "hex": "#280401",
  "rgb": {
    "r": 40,
    "g": 4,
    "b": 1
  },
  "hsl": {
    "h": 4.615,
    "s": 95.122,
    "l": 8.039
  },
  "oklch": {
    "l": 0.18274,
    "c": 0.06311,
    "h": 32.7
  },
  "luminance": 0.0054
}

Semantic roles & 50–950 ramp

primary

#280401

secondary

#16686F

accent

#EFFF29

background

#F6F4F3

surface

#EBE6E5

border

#C6C2C1

text

#060000

muted

#7A7777

Preview Lab

Preview with #280401

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

Preview Lab → · Contrast checker → · Palette generator →