#101428#101428

#101428 is a very dark, muted blue. Relative luminance 0.008; OKLCH L 19.9% C 0.041 H 273.6°. Best body text is #FFFFFF at 18.22:1 contrast (WCAG AA passes).

Color values

HEX	#101428
RGB	rgb(16, 20, 40)
HSL	hsl(230, 43%, 11%)
HSV	hsv(230, 60%, 16%)
CMYK	cmyk(60%, 50%, 0%, 84.3%)
CIE-LAB	lab(6.90, 4.95, -14.24)
CIE-LCH	lch(6.90, 15.08, 289.18°)
OKLab	oklab(19.88% 0.0026 -0.0405)
OKLCH	oklch(19.88% 0.041 273.6)
XYZ	xyz(0.8467, 0.7636, 2.1098)
Luminance	0.0076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101428 #282410

analogous

#102028 #101428 #181028

triadic

#101428 #281014 #142810

tetradic

#101428 #281020 #282410 #102818

square

#101428 #281020 #282410 #102818

split-complementary

#101428 #281810 #202810

monochromatic

#090B16 #090B16 #101428 #212A54 #33407F

Accessibility & contrast

On white

18.22

#101428 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#101428 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101428

18.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101428	#FFFFFF	#000000	##FFFFFF
##101428	1.00	18.22	1.15	18.22
#FFFFFF	18.22	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C1629

Deuteranopia (green-blind)

#0A1428

Tritanopia (blue-blind)

#07181C

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #101428;
/* rgb */ color: rgb(16, 20, 40);
/* oklch */ color: oklch(19.9% 0.041 273.6);

Tailwind

colors: {
  custom: {
    50: '#505162',
    500: '#101428',
    950: '#000000',
  },
}

SCSS

$custom: #101428;
$custom-light: #505162;
$custom-dark: #000000;

JSON

{
  "hex": "#101428",
  "rgb": {
    "r": 16,
    "g": 20,
    "b": 40
  },
  "hsl": {
    "h": 230,
    "s": 42.857,
    "l": 10.98
  },
  "oklch": {
    "l": 0.19883,
    "c": 0.04058,
    "h": 273.6
  },
  "luminance": 0.00764
}

Semantic roles & 50–950 ramp

primary

#101428

secondary

#605934

accent

#BE55D3

background

#F4F4F5

surface

#E7E7EA

border

#C3C3C6

text

#020205

muted

#787879

Preview Lab

Preview with #101428

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

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