#101552#101552

#101552 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.1% C 0.109 H 271.5°. Best body text is #FFFFFF at 16.78:1 contrast (WCAG AA passes).

Color values

HEX	#101552
RGB	rgb(16, 21, 82)
HSL	hsl(235, 67%, 19%)
HSV	hsv(235, 80%, 32%)
CMYK	cmyk(80.5%, 74.4%, 0%, 67.8%)
CIE-LAB	lab(10.96, 21.93, -37.69)
CIE-LCH	lch(10.96, 43.61, 300.19°)
OKLab	oklab(24.14% 0.0028 -0.109)
OKLCH	oklch(24.14% 0.109 271.5)
XYZ	xyz(2.0043, 1.2555, 8.1177)
Luminance	0.0126 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101552 #524D10

analogous

#103652 #101552 #2C1052

triadic

#101552 #521015 #155210

tetradic

#101552 #521036 #524D10 #10522C

square

#101552 #521036 #524D10 #10522C

split-complementary

#101552 #522C10 #365210

monochromatic

#05071A #06081F #101552 #1A2285 #242FB8

Accessibility & contrast

On white

16.78

#101552 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#101552 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101552

16.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101552	#FFFFFF	#000000	##FFFFFF
##101552	1.00	16.78	1.25	16.78
#FFFFFF	16.78	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002154

Deuteranopia (green-blind)

#001A51

Tritanopia (blue-blind)

#002631

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #101552;
/* rgb */ color: rgb(16, 21, 82);
/* oklch */ color: oklch(24.1% 0.109 271.5);

Tailwind

colors: {
  custom: {
    50: '#5b5283',
    500: '#101552',
    950: '#000000',
  },
}

SCSS

$custom: #101552;
$custom-light: #5b5283;
$custom-dark: #000000;

JSON

{
  "hex": "#101552",
  "rgb": {
    "r": 16,
    "g": 21,
    "b": 82
  },
  "hsl": {
    "h": 235.455,
    "s": 67.347,
    "l": 19.216
  },
  "oklch": {
    "l": 0.24139,
    "c": 0.10907,
    "h": 271.5
  },
  "luminance": 0.01256
}

Semantic roles & 50–950 ramp

primary

#101552

secondary

#8C8532

accent

#DD3EEA

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#04020B

muted

#79787C

Preview Lab

Preview with #101552

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

Preview Lab → · Contrast checker → · Palette generator →