#100302#100302

#100302 is a very dark, muted red. Relative luminance 0.002; OKLCH L 12.5% C 0.030 H 30.3°. Best body text is #FFFFFF at 20.27:1 contrast (WCAG AA passes).

Color values

HEX	#100302
RGB	rgb(16, 3, 2)
HSL	hsl(4, 78%, 4%)
HSV	hsv(4, 88%, 6%)
CMYK	cmyk(0%, 81.3%, 87.5%, 93.7%)
CIE-LAB	lab(1.62, 3.54, 1.67)
CIE-LCH	lch(1.62, 3.92, 25.32°)
OKLab	oklab(12.5% 0.0259 0.0151)
OKLCH	oklch(12.5% 0.03 30.3)
XYZ	xyz(0.2572, 0.1797, 0.0786)
Luminance	0.0018 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100302 #020F10

analogous

#100208 #100302 #100A02

triadic

#100302 #021003 #030210

tetradic

#100302 #081002 #020F10 #0A0210

square

#100302 #081002 #020F10 #0A0210

split-complementary

#100302 #02100A #020810

monochromatic

#1B0503 #1B0503 #1B0503 #460D09 #7D1710

Accessibility & contrast

On white

20.27

#100302 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.04

#100302 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100302

20.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100302	#FFFFFF	#000000	##FFFFFF
##100302	1.00	20.27	1.04	20.27
#FFFFFF	20.27	1.00	21.00	1.00
#000000	1.04	21.00	1.00	21.00
##FFFFFF	20.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#050502

Deuteranopia (green-blind)

#080702

Tritanopia (blue-blind)

#130203

Achromatopsia (no color)

#060606

Design tokens & code

CSS

--color: #100302;
/* rgb */ color: rgb(16, 3, 2);
/* oklch */ color: oklch(12.5% 0.030 30.3);

Tailwind

colors: {
  custom: {
    50: '#4e4848',
    500: '#100302',
    950: '#000000',
  },
}

SCSS

$custom: #100302;
$custom-light: #4e4848;
$custom-dark: #000000;

JSON

{
  "hex": "#100302",
  "rgb": {
    "r": 16,
    "g": 3,
    "b": 2
  },
  "hsl": {
    "h": 4.286,
    "s": 77.778,
    "l": 3.529
  },
  "oklch": {
    "l": 0.12496,
    "c": 0.02997,
    "h": 30.3
  },
  "luminance": 0.0018
}

Semantic roles & 50–950 ramp

primary

#100302

secondary

#195155

accent

#E7F434

background

#F4F4F4

surface

#E7E6E6

border

#C3C2C2

text

#010000

muted

#777777

Preview Lab

Preview with #100302

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

Preview Lab → · Contrast checker → · Palette generator →