#100604#100604

#100604 is a very dark, muted red. Relative luminance 0.002; OKLCH L 13.8% C 0.021 H 36.7°. Best body text is #FFFFFF at 20.00:1 contrast (WCAG AA passes).

Color values

HEX	#100604
RGB	rgb(16, 6, 4)
HSL	hsl(10, 60%, 4%)
HSV	hsv(10, 75%, 6%)
CMYK	cmyk(0%, 62.5%, 75%, 93.7%)
CIE-LAB	lab(2.25, 2.62, 1.78)
CIE-LCH	lch(2.25, 3.16, 34.19°)
OKLab	oklab(13.77% 0.0167 0.0124)
OKLCH	oklch(13.77% 0.021 36.7)
XYZ	xyz(0.3007, 0.2492, 0.1471)
Luminance	0.0025 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100604 #040E10

analogous

#100408 #100604 #100C04

triadic

#100604 #041006 #060410

tetradic

#100604 #081004 #040E10 #0C0410

square

#100604 #081004 #040E10 #0C0410

split-complementary

#100604 #04100C #040810

monochromatic

#180906 #180906 #180906 #411810 #722B1C

Accessibility & contrast

On white

20.00

#100604 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.05

#100604 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100604

20.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100604	#FFFFFF	#000000	##FFFFFF
##100604	1.00	20.00	1.05	20.00
#FFFFFF	20.00	1.00	21.00	1.00
#000000	1.05	21.00	1.00	21.00
##FFFFFF	20.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#080704

Deuteranopia (green-blind)

#0B0904

Tritanopia (blue-blind)

#120505

Achromatopsia (no color)

#080808

Design tokens & code

CSS

--color: #100604;
/* rgb */ color: rgb(16, 6, 4);
/* oklch */ color: oklch(13.8% 0.021 36.7);

Tailwind

colors: {
  custom: {
    50: '#4e4948',
    500: '#100604',
    950: '#000000',
  },
}

SCSS

$custom: #100604;
$custom-light: #4e4948;
$custom-dark: #000000;

JSON

{
  "hex": "#100604",
  "rgb": {
    "r": 16,
    "g": 6,
    "b": 4
  },
  "hsl": {
    "h": 10,
    "s": 60,
    "l": 3.922
  },
  "oklch": {
    "l": 0.13769,
    "c": 0.02078,
    "h": 36.7
  },
  "luminance": 0.00249
}

Semantic roles & 50–950 ramp

primary

#100604

secondary

#20484F

accent

#C9E345

background

#F4F4F4

surface

#E7E6E6

border

#C3C2C2

text

#010000

muted

#777777

Preview Lab

Preview with #100604

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

Preview Lab → · Contrast checker → · Palette generator →