#101421#101421

#101421 is a very dark, muted blue. Relative luminance 0.007; OKLCH L 19.4% C 0.027 H 270.6°. Best body text is #FFFFFF at 18.36:1 contrast (WCAG AA passes).

Color values

HEX	#101421
RGB	rgb(16, 20, 33)
HSL	hsl(226, 35%, 10%)
HSV	hsv(226, 52%, 13%)
CMYK	cmyk(51.5%, 39.4%, 0%, 87.1%)
CIE-LAB	lab(6.51, 2.20, -9.55)
CIE-LCH	lch(6.51, 9.80, 282.99°)
OKLab	oklab(19.4% 0.0003 -0.0271)
OKLCH	oklch(19.4% 0.027 270.6)
XYZ	xyz(0.7383, 0.7202, 1.5387)
Luminance	0.0072 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101421 #211D10

analogous

#101D21 #101421 #151021

triadic

#101421 #211014 #142110

tetradic

#101421 #21101D #211D10 #102115

square

#101421 #21101D #211D10 #102115

split-complementary

#101421 #211510 #1D2110

monochromatic

#0A0C15 #0A0C15 #101421 #242D4A #384673

Accessibility & contrast

On white

18.36

#101421 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#101421 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101421

18.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101421	#FFFFFF	#000000	##FFFFFF
##101421	1.00	18.36	1.14	18.36
#FFFFFF	18.36	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#101522

Deuteranopia (green-blind)

#0E1421

Tritanopia (blue-blind)

#0B1719

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #101421;
/* rgb */ color: rgb(16, 20, 33);
/* oklch */ color: oklch(19.4% 0.027 270.6);

Tailwind

colors: {
  custom: {
    50: '#4e515c',
    500: '#101421',
    950: '#000000',
  },
}

SCSS

$custom: #101421;
$custom-light: #4e515c;
$custom-dark: #000000;

JSON

{
  "hex": "#101421",
  "rgb": {
    "r": 16,
    "g": 20,
    "b": 33
  },
  "hsl": {
    "h": 225.882,
    "s": 34.694,
    "l": 9.608
  },
  "oklch": {
    "l": 0.19398,
    "c": 0.02714,
    "h": 270.6
  },
  "luminance": 0.0072
}

Semantic roles & 50–950 ramp

primary

#101421

secondary

#574F35

accent

#B15DCB

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#010204

muted

#777879

Preview Lab

Preview with #101421

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

Preview Lab → · Contrast checker → · Palette generator →