#101381#101381

#101381 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.6% C 0.173 H 268.4°. Best body text is #FFFFFF at 14.66:1 contrast (WCAG AA passes).

Color values

HEX	#101381
RGB	rgb(16, 19, 129)
HSL	hsl(238, 78%, 28%)
HSV	hsv(238, 88%, 51%)
CMYK	cmyk(87.6%, 85.3%, 0%, 49.4%)
CIE-LAB	lab(16.31, 40.38, -59.76)
CIE-LCH	lch(16.31, 72.12, 304.05°)
OKLab	oklab(29.6% -0.0049 -0.173)
OKLCH	oklch(29.6% 0.173 268.4)
XYZ	xyz(4.4076, 2.1603, 20.9493)
Luminance	0.0216 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101381 #817E10

analogous

#104B81 #101381 #451081

triadic

#101381 #811013 #138110

tetradic

#101381 #81104B #817E10 #108145

square

#101381 #81104B #817E10 #108145

split-complementary

#101381 #814510 #4B8110

monochromatic

#03041B #090B4B #101381 #171BB7 #272CE4

Accessibility & contrast

On white

14.66

#101381 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#101381 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101381

14.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101381	#FFFFFF	#000000	##FFFFFF
##101381	1.00	14.66	1.43	14.66
#FFFFFF	14.66	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E84

Deuteranopia (green-blind)

#00227F

Tritanopia (blue-blind)

#00374B

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #101381;
/* rgb */ color: rgb(16, 19, 129);
/* oklch */ color: oklch(29.6% 0.173 268.4);

Tailwind

colors: {
  custom: {
    50: '#6954a7',
    500: '#101381',
    950: '#000000',
  },
}

SCSS

$custom: #101381;
$custom-light: #6954a7;
$custom-dark: #000000;

JSON

{
  "hex": "#101381",
  "rgb": {
    "r": 16,
    "g": 19,
    "b": 129
  },
  "hsl": {
    "h": 238.407,
    "s": 77.931,
    "l": 28.431
  },
  "oklch": {
    "l": 0.29604,
    "c": 0.17312,
    "h": 268.4
  },
  "luminance": 0.02161
}

Semantic roles & 50–950 ramp

primary

#101381

secondary

#B7B436

accent

#EF33F4

background

#F6F5FA

surface

#ECE8F4

border

#C7C4CE

text

#080310

muted

#7A787F

Preview Lab

Preview with #101381

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

Preview Lab → · Contrast checker → · Palette generator →