#101181#101181

#101181 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.4% C 0.175 H 268.5°. Best body text is #FFFFFF at 14.80:1 contrast (WCAG AA passes).

Color values

HEX	#101181
RGB	rgb(16, 17, 129)
HSL	hsl(239, 78%, 28%)
HSV	hsv(239, 88%, 51%)
CMYK	cmyk(87.6%, 86.8%, 0%, 49.4%)
CIE-LAB	lab(15.98, 41.35, -60.30)
CIE-LCH	lch(15.98, 73.11, 304.44°)
OKLab	oklab(29.38% -0.0047 -0.1746)
OKLCH	oklch(29.38% 0.175 268.5)
XYZ	xyz(4.3752, 2.0955, 20.9385)
Luminance	0.0210 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101181 #818010

analogous

#104981 #101181 #471081

triadic

#101181 #811011 #118110

tetradic

#101181 #811049 #818010 #108147

square

#101181 #811049 #818010 #108147

split-complementary

#101181 #814710 #498110

monochromatic

#03041B #090A4B #101181 #1718B7 #2729E4

Accessibility & contrast

On white

14.80

#101181 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#101181 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101181

14.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101181	#FFFFFF	#000000	##FFFFFF
##101181	1.00	14.80	1.42	14.80
#FFFFFF	14.80	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E84

Deuteranopia (green-blind)

#00227F

Tritanopia (blue-blind)

#00364B

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #101181;
/* rgb */ color: rgb(16, 17, 129);
/* oklch */ color: oklch(29.4% 0.175 268.5);

Tailwind

colors: {
  custom: {
    50: '#6953a7',
    500: '#101181',
    950: '#000000',
  },
}

SCSS

$custom: #101181;
$custom-light: #6953a7;
$custom-dark: #000000;

JSON

{
  "hex": "#101181",
  "rgb": {
    "r": 16,
    "g": 17,
    "b": 129
  },
  "hsl": {
    "h": 239.469,
    "s": 77.931,
    "l": 28.431
  },
  "oklch": {
    "l": 0.29378,
    "c": 0.17464,
    "h": 268.5
  },
  "luminance": 0.02096
}

Semantic roles & 50–950 ramp

primary

#101181

secondary

#B7B636

accent

#F333F4

background

#F6F4FA

surface

#ECE7F4

border

#C7C3CE

text

#080310

muted

#7A787F

Preview Lab

Preview with #101181

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

Preview Lab → · Contrast checker → · Palette generator →