#101228#101228

#101228 is a very dark, muted blue. Relative luminance 0.007; OKLCH L 19.4% C 0.044 H 277.5°. Best body text is #FFFFFF at 18.43:1 contrast (WCAG AA passes).

Color values

HEX	#101228
RGB	rgb(16, 18, 40)
HSL	hsl(235, 43%, 11%)
HSV	hsv(235, 60%, 16%)
CMYK	cmyk(60%, 55%, 0%, 84.3%)
CIE-LAB	lab(6.29, 6.20, -15.20)
CIE-LCH	lch(6.29, 16.42, 292.21°)
OKLab	oklab(19.35% 0.0058 -0.0437)
OKLCH	oklch(19.35% 0.044 277.5)
XYZ	xyz(0.8129, 0.6959, 2.0986)
Luminance	0.0070 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101228 #282610

analogous

#101E28 #101228 #1A1028

triadic

#101228 #281012 #122810

tetradic

#101228 #28101E #282610 #10281A

square

#101228 #28101E #282610 #10281A

split-complementary

#101228 #281A10 #1E2810

monochromatic

#090A16 #090A16 #101228 #212654 #33397F

Accessibility & contrast

On white

18.43

#101228 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#101228 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101228

18.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101228	#FFFFFF	#000000	##FFFFFF
##101228	1.00	18.43	1.14	18.43
#FFFFFF	18.43	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#091529

Deuteranopia (green-blind)

#071328

Tritanopia (blue-blind)

#07171B

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #101228;
/* rgb */ color: rgb(16, 18, 40);
/* oklch */ color: oklch(19.4% 0.044 277.5);

Tailwind

colors: {
  custom: {
    50: '#4f4f62',
    500: '#101228',
    950: '#000000',
  },
}

SCSS

$custom: #101228;
$custom-light: #4f4f62;
$custom-dark: #000000;

JSON

{
  "hex": "#101228",
  "rgb": {
    "r": 16,
    "g": 18,
    "b": 40
  },
  "hsl": {
    "h": 235,
    "s": 42.857,
    "l": 10.98
  },
  "oklch": {
    "l": 0.19351,
    "c": 0.04412,
    "h": 277.5
  },
  "luminance": 0.00696
}

Semantic roles & 50–950 ramp

primary

#101228

secondary

#605C34

accent

#C855D3

background

#F4F4F5

surface

#E7E7EA

border

#C3C3C6

text

#020205

muted

#787879

Preview Lab

Preview with #101228

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

Preview Lab → · Contrast checker → · Palette generator →