#101981#101981

#101981 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.4% C 0.168 H 267.9°. Best body text is #FFFFFF at 14.21:1 contrast (WCAG AA passes).

Color values

HEX	#101981
RGB	rgb(16, 25, 129)
HSL	hsl(235, 78%, 28%)
HSV	hsv(235, 88%, 51%)
CMYK	cmyk(87.6%, 80.6%, 0%, 49.4%)
CIE-LAB	lab(17.41, 37.16, -57.92)
CIE-LCH	lch(17.41, 68.82, 302.68°)
OKLab	oklab(30.38% -0.006 -0.1679)
OKLCH	oklch(30.38% 0.168 267.9)
XYZ	xyz(4.5224, 2.3898, 20.9876)
Luminance	0.0239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101981 #817810

analogous

#105181 #101981 #3F1081

triadic

#101981 #811019 #198110

tetradic

#101981 #811051 #817810 #10813F

square

#101981 #811051 #817810 #10813F

split-complementary

#101981 #813F10 #518110

monochromatic

#03051B #090E4B #101981 #1724B7 #2736E4

Accessibility & contrast

On white

14.21

#101981 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#101981 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101981

14.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101981	#FFFFFF	#000000	##FFFFFF
##101981	1.00	14.21	1.48	14.21
#FFFFFF	14.21	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003084

Deuteranopia (green-blind)

#00257F

Tritanopia (blue-blind)

#00394D

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #101981;
/* rgb */ color: rgb(16, 25, 129);
/* oklch */ color: oklch(30.4% 0.168 267.9);

Tailwind

colors: {
  custom: {
    50: '#6857a7',
    500: '#101981',
    950: '#000000',
  },
}

SCSS

$custom: #101981;
$custom-light: #6857a7;
$custom-dark: #000000;

JSON

{
  "hex": "#101981",
  "rgb": {
    "r": 16,
    "g": 25,
    "b": 129
  },
  "hsl": {
    "h": 235.221,
    "s": 77.931,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30377,
    "c": 0.16797,
    "h": 267.9
  },
  "luminance": 0.0239
}

Semantic roles & 50–950 ramp

primary

#101981

secondary

#B7AD36

accent

#E533F4

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#080310

muted

#7A787F

Preview Lab

Preview with #101981

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

Preview Lab → · Contrast checker → · Palette generator →