#101321#101321

#101321 is a very dark, muted blue. Relative luminance 0.007; OKLCH L 19.1% C 0.029 H 274.1°. Best body text is #FFFFFF at 18.47:1 contrast (WCAG AA passes).

Color values

HEX	#101321
RGB	rgb(16, 19, 33)
HSL	hsl(229, 35%, 10%)
HSV	hsv(229, 52%, 13%)
CMYK	cmyk(51.5%, 42.4%, 0%, 87.1%)
CIE-LAB	lab(6.19, 2.84, -10.03)
CIE-LCH	lch(6.19, 10.42, 285.80°)
OKLab	oklab(19.12% 0.0021 -0.0288)
OKLCH	oklch(19.12% 0.029 274.1)
XYZ	xyz(0.7210, 0.6857, 1.5329)
Luminance	0.0069 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101321 #211E10

analogous

#101C21 #101321 #161021

triadic

#101321 #211013 #132110

tetradic

#101321 #21101C #211E10 #102116

square

#101321 #21101C #211E10 #102116

split-complementary

#101321 #211610 #1C2110

monochromatic

#0A0C15 #0A0C15 #101321 #242B4A #384273

Accessibility & contrast

On white

18.47

#101321 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#101321 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101321

18.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101321	#FFFFFF	#000000	##FFFFFF
##101321	1.00	18.47	1.14	18.47
#FFFFFF	18.47	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E1422

Deuteranopia (green-blind)

#0D1321

Tritanopia (blue-blind)

#0B1618

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #101321;
/* rgb */ color: rgb(16, 19, 33);
/* oklch */ color: oklch(19.1% 0.029 274.1);

Tailwind

colors: {
  custom: {
    50: '#4e505c',
    500: '#101321',
    950: '#000000',
  },
}

SCSS

$custom: #101321;
$custom-light: #4e505c;
$custom-dark: #000000;

JSON

{
  "hex": "#101321",
  "rgb": {
    "r": 16,
    "g": 19,
    "b": 33
  },
  "hsl": {
    "h": 229.412,
    "s": 34.694,
    "l": 9.608
  },
  "oklch": {
    "l": 0.19116,
    "c": 0.02884,
    "h": 274.1
  },
  "luminance": 0.00686
}

Semantic roles & 50–950 ramp

primary

#101321

secondary

#575135

accent

#B75DCB

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#010204

muted

#777879

Preview Lab

Preview with #101321

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

Preview Lab → · Contrast checker → · Palette generator →