#280004#280004

#280004 is a very dark, moderate red. Relative luminance 0.005; OKLCH L 17.5% C 0.070 H 20.0°. Best body text is #FFFFFF at 19.23:1 contrast (WCAG AA passes).

Color values

HEX	#280004
RGB	rgb(40, 0, 4)
HSL	hsl(354, 100%, 8%)
HSV	hsv(354, 100%, 16%)
CMYK	cmyk(0%, 100%, 90%, 84.3%)
CIE-LAB	lab(4.16, 18.79, 4.93)
CIE-LCH	lch(4.16, 19.43, 14.69°)
OKLab	oklab(17.51% 0.0661 0.024)
OKLCH	oklch(17.51% 0.07 20)
XYZ	xyz(0.8971, 0.4600, 0.1564)
Luminance	0.0046 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#280004 #002824

analogous

#280018 #280004 #281000

triadic

#280004 #042800 #000428

tetradic

#280004 #182800 #002824 #100028

square

#280004 #182800 #002824 #100028

split-complementary

#280004 #002810 #001828

monochromatic

#1F0003 #1F0003 #280004 #65000A #A20010

Accessibility & contrast

On white

19.23

#280004 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#280004 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #280004

19.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##280004	#FFFFFF	#000000	##FFFFFF
##280004	1.00	19.23	1.09	19.23
#FFFFFF	19.23	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A0804

Deuteranopia (green-blind)

#151203

Tritanopia (blue-blind)

#2D0002

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #280004;
/* rgb */ color: rgb(40, 0, 4);
/* oklch */ color: oklch(17.5% 0.070 20.0);

Tailwind

colors: {
  custom: {
    50: '#634648',
    500: '#280004',
    950: '#000000',
  },
}

SCSS

$custom: #280004;
$custom-light: #634648;
$custom-dark: #000000;

JSON

{
  "hex": "#280004",
  "rgb": {
    "r": 40,
    "g": 0,
    "b": 4
  },
  "hsl": {
    "h": 354,
    "s": 100,
    "l": 7.843
  },
  "oklch": {
    "l": 0.17514,
    "c": 0.07034,
    "h": 20
  },
  "luminance": 0.0046
}

Semantic roles & 50–950 ramp

primary

#280004

secondary

#147067

accent

#FFEA29

background

#F6F3F4

surface

#EBE5E6

border

#C6C1C2

text

#060000

muted

#7A7677

Preview Lab

Preview with #280004

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

Preview Lab → · Contrast checker → · Palette generator →