#100B1F#100B1F

#100B1F is a very dark, muted violet. Relative luminance 0.004; OKLCH L 16.9% C 0.041 H 293.0°. Best body text is #FFFFFF at 19.27:1 contrast (WCAG AA passes).

Color values

HEX	#100B1F
RGB	rgb(16, 11, 31)
HSL	hsl(255, 48%, 8%)
HSV	hsv(255, 65%, 12%)
CMYK	cmyk(48.4%, 64.5%, 0%, 87.8%)
CIE-LAB	lab(4.05, 6.33, -11.74)
CIE-LCH	lch(4.05, 13.34, 298.31°)
OKLab	oklab(16.85% 0.016 -0.0376)
OKLCH	oklch(16.85% 0.041 293)
XYZ	xyz(0.5806, 0.4484, 1.3520)
Luminance	0.0045 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100B1F #1A1F0B

analogous

#0B101F #100B1F #1A0B1F

triadic

#100B1F #1F100B #0B1F10

tetradic

#100B1F #1F0B10 #1A1F0B #0B1F1A

square

#100B1F #1F0B10 #1A1F0B #0B1F1A

split-complementary

#100B1F #1F1A0B #101F0B

monochromatic

#0C0817 #0C0817 #100B1F #271B4C #3F2B79

Accessibility & contrast

On white

19.27

#100B1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#100B1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100B1F

19.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100B1F	#FFFFFF	#000000	##FFFFFF
##100B1F	1.00	19.27	1.09	19.27
#FFFFFF	19.27	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#050F20

Deuteranopia (green-blind)

#050E1F

Tritanopia (blue-blind)

#0C0F13

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #100b1f;
/* rgb */ color: rgb(16, 11, 31);
/* oklch */ color: oklch(16.9% 0.041 293.0);

Tailwind

colors: {
  custom: {
    50: '#4e4b5a',
    500: '#100b1f',
    950: '#000000',
  },
}

SCSS

$custom: #100b1f;
$custom-light: #4e4b5a;
$custom-dark: #000000;

JSON

{
  "hex": "#100b1f",
  "rgb": {
    "r": 16,
    "g": 11,
    "b": 31
  },
  "hsl": {
    "h": 255,
    "s": 47.619,
    "l": 8.235
  },
  "oklch": {
    "l": 0.16853,
    "c": 0.04086,
    "h": 293
  },
  "luminance": 0.00448
}

Semantic roles & 50–950 ramp

primary

#100B1F

secondary

#4E592D

accent

#D751B6

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#010103

muted

#777778

Preview Lab

Preview with #100B1F

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

Preview Lab → · Contrast checker → · Palette generator →