#101166#101166

#101166 is a dark, vivid blue. Relative luminance 0.015; OKLCH L 25.9% C 0.141 H 270.5°. Best body text is #FFFFFF at 16.23:1 contrast (WCAG AA passes).

Color values

HEX	#101166
RGB	rgb(16, 17, 102)
HSL	hsl(239, 73%, 23%)
HSV	hsv(239, 84%, 40%)
CMYK	cmyk(84.3%, 83.3%, 0%, 60%)
CIE-LAB	lab(12.42, 32.15, -48.73)
CIE-LCH	lch(12.42, 58.38, 303.41°)
OKLab	oklab(25.88% 0.0011 -0.1411)
OKLCH	oklch(25.88% 0.141 270.5)
XYZ	xyz(2.8116, 1.4700, 12.7034)
Luminance	0.0147 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101166 #666510

analogous

#103C66 #101166 #3A1066

triadic

#101166 #661011 #116610

tetradic

#101166 #66103C #666510 #10663A

square

#101166 #66103C #666510 #10663A

split-complementary

#101166 #663A10 #3C6610

monochromatic

#04041A #080831 #101166 #181A9B #2123D0

Accessibility & contrast

On white

16.23

#101166 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#101166 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101166

16.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101166	#FFFFFF	#000000	##FFFFFF
##101166	1.00	16.23	1.29	16.23
#FFFFFF	16.23	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002568

Deuteranopia (green-blind)

#001C65

Tritanopia (blue-blind)

#002B3B

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #101166;
/* rgb */ color: rgb(16, 17, 102);
/* oklch */ color: oklch(25.9% 0.141 270.5);

Tailwind

colors: {
  custom: {
    50: '#615193',
    500: '#101166',
    950: '#000000',
  },
}

SCSS

$custom: #101166;
$custom-light: #615193;
$custom-dark: #000000;

JSON

{
  "hex": "#101166",
  "rgb": {
    "r": 16,
    "g": 17,
    "b": 102
  },
  "hsl": {
    "h": 239.302,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.2588,
    "c": 0.14112,
    "h": 270.5
  },
  "luminance": 0.0147
}

Semantic roles & 50–950 ramp

primary

#101166

secondary

#9E9D33

accent

#ED38F0

background

#F6F4F9

surface

#EBE7F1

border

#C6C3CB

text

#06020D

muted

#7A787E

Preview Lab

Preview with #101166

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

Preview Lab → · Contrast checker → · Palette generator →