#181166#181166

#181166 is a dark, vivid blue. Relative luminance 0.016; OKLCH L 26.4% C 0.139 H 274.9°. Best body text is #FFFFFF at 16.02:1 contrast (WCAG AA passes).

Color values

HEX	#181166
RGB	rgb(24, 17, 102)
HSL	hsl(245, 71%, 23%)
HSV	hsv(245, 83%, 40%)
CMYK	cmyk(76.5%, 83.3%, 0%, 60%)
CIE-LAB	lab(12.95, 32.79, -47.84)
CIE-LCH	lch(12.95, 58.00, 304.43°)
OKLab	oklab(26.39% 0.0117 -0.1383)
OKLCH	oklch(26.39% 0.139 274.9)
XYZ	xyz(2.9746, 1.5541, 12.7110)
Luminance	0.0155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181166 #5F6611

analogous

#113466 #181166 #421166

triadic

#181166 #661811 #116618

tetradic

#181166 #661134 #5F6611 #116642

square

#181166 #661134 #5F6611 #116642

split-complementary

#181166 #664211 #346611

monochromatic

#06041A #0C0832 #181166 #241A9A #3122CF

Accessibility & contrast

On white

16.02

#181166 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#181166 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181166

16.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181166	#FFFFFF	#000000	##FFFFFF
##181166	1.00	16.02	1.31	16.02
#FFFFFF	16.02	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002568

Deuteranopia (green-blind)

#001D65

Tritanopia (blue-blind)

#002B3B

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #181166;
/* rgb */ color: rgb(24, 17, 102);
/* oklch */ color: oklch(26.4% 0.139 274.9);

Tailwind

colors: {
  custom: {
    50: '#645193',
    500: '#181166',
    950: '#000000',
  },
}

SCSS

$custom: #181166;
$custom-light: #645193;
$custom-dark: #000000;

JSON

{
  "hex": "#181166",
  "rgb": {
    "r": 24,
    "g": 17,
    "b": 102
  },
  "hsl": {
    "h": 244.941,
    "s": 71.429,
    "l": 23.333
  },
  "oklch": {
    "l": 0.26394,
    "c": 0.13884,
    "h": 274.9
  },
  "luminance": 0.01554
}

Semantic roles & 50–950 ramp

primary

#181166

secondary

#959E35

accent

#EE3ADF

background

#F6F4F9

surface

#EBE7F1

border

#C6C3CB

text

#06020D

muted

#7A787E

Preview Lab

Preview with #181166

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

Preview Lab → · Contrast checker → · Palette generator →