#10101D#10101D

#10101D is a very dark, muted blue. Relative luminance 0.006; OKLCH L 18.0% C 0.027 H 283.4°. Best body text is #FFFFFF at 18.85:1 contrast (WCAG AA passes).

Color values

HEX	#10101D
RGB	rgb(16, 16, 29)
HSL	hsl(240, 29%, 9%)
HSV	hsv(240, 45%, 11%)
CMYK	cmyk(44.8%, 44.8%, 0%, 88.6%)
CIE-LAB	lab(5.14, 3.26, -8.54)
CIE-LCH	lch(5.14, 9.14, 290.88°)
OKLab	oklab(18.02% 0.0062 -0.0258)
OKLCH	oklch(18.02% 0.027 283.4)
XYZ	xyz(0.6207, 0.5694, 1.2394)
Luminance	0.0057 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10101D #1D1D10

analogous

#10171D #10101D #17101D

triadic

#10101D #1D1010 #101D10

tetradic

#10101D #1D1017 #1D1D10 #101D17

square

#10101D #1D1017 #1D1D10 #101D17

split-complementary

#10101D #1D1710 #171D10

monochromatic

#0B0B14 #0B0B14 #10101D #262644 #3C3C6C

Accessibility & contrast

On white

18.85

#10101D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#10101D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10101D

18.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10101D	#FFFFFF	#000000	##FFFFFF
##10101D	1.00	18.85	1.11	18.85
#FFFFFF	18.85	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C121E

Deuteranopia (green-blind)

#0C111D

Tritanopia (blue-blind)

#0D1215

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #10101d;
/* rgb */ color: rgb(16, 16, 29);
/* oklch */ color: oklch(18.0% 0.027 283.4);

Tailwind

colors: {
  custom: {
    50: '#4e4e58',
    500: '#10101d',
    950: '#000000',
  },
}

SCSS

$custom: #10101d;
$custom-light: #4e4e58;
$custom-dark: #000000;

JSON

{
  "hex": "#10101d",
  "rgb": {
    "r": 16,
    "g": 16,
    "b": 29
  },
  "hsl": {
    "h": 240,
    "s": 28.889,
    "l": 8.824
  },
  "oklch": {
    "l": 0.18015,
    "c": 0.02655,
    "h": 283.4
  },
  "luminance": 0.00569
}

Semantic roles & 50–950 ramp

primary

#10101D

secondary

#525237

accent

#C563C5

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#010103

muted

#777778

Preview Lab

Preview with #10101D

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

Preview Lab → · Contrast checker → · Palette generator →