#100004#100004

#100004 is a very dark, muted red. Relative luminance 0.001; OKLCH L 11.2% C 0.045 H 0.9°. Best body text is #FFFFFF at 20.51:1 contrast (WCAG AA passes).

Color values

HEX	#100004
RGB	rgb(16, 0, 4)
HSL	hsl(345, 100%, 3%)
HSV	hsv(345, 100%, 6%)
CMYK	cmyk(0%, 100%, 75%, 93.7%)
CIE-LAB	lab(1.07, 5.02, 0.06)
CIE-LCH	lch(1.07, 5.02, 0.68°)
OKLab	oklab(11.19% 0.0453 0.0007)
OKLCH	oklch(11.19% 0.045 0.9)
XYZ	xyz(0.2356, 0.1190, 0.1254)
Luminance	0.0012 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100004 #00100C

analogous

#10000C #100004 #100400

triadic

#100004 #041000 #000410

tetradic

#100004 #0C1000 #00100C #040010

square

#100004 #0C1000 #00100C #040010

split-complementary

#100004 #001004 #000C10

monochromatic

#1F0008 #1F0008 #1F0008 #4D0013 #8A0023

Accessibility & contrast

On white

20.51

#100004 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.02

#100004 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100004

20.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100004	#FFFFFF	#000000	##FFFFFF
##100004	1.00	20.51	1.02	20.51
#FFFFFF	20.51	1.00	21.00	1.00
#000000	1.02	21.00	1.00	21.00
##FFFFFF	20.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#020204

Deuteranopia (green-blind)

#050504

Tritanopia (blue-blind)

#130001

Achromatopsia (no color)

#040404

Design tokens & code

CSS

--color: #100004;
/* rgb */ color: rgb(16, 0, 4);
/* oklch */ color: oklch(11.2% 0.045 0.9);

Tailwind

colors: {
  custom: {
    50: '#4e4748',
    500: '#100004',
    950: '#000000',
  },
}

SCSS

$custom: #100004;
$custom-light: #4e4748;
$custom-dark: #000000;

JSON

{
  "hex": "#100004",
  "rgb": {
    "r": 16,
    "g": 0,
    "b": 4
  },
  "hsl": {
    "h": 345,
    "s": 100,
    "l": 3.137
  },
  "oklch": {
    "l": 0.11192,
    "c": 0.04529,
    "h": 0.9
  },
  "luminance": 0.00119
}

Semantic roles & 50–950 ramp

primary

#100004

secondary

#105C49

accent

#FFC929

background

#F4F3F4

surface

#E7E5E6

border

#C3C1C2

text

#010000

muted

#777777

Preview Lab

Preview with #100004

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

Preview Lab → · Contrast checker → · Palette generator →