#181155#181155

#181155 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.4% C 0.116 H 278.0°. Best body text is #FFFFFF at 16.80:1 contrast (WCAG AA passes).

Color values

HEX	#181155
RGB	rgb(24, 17, 85)
HSL	hsl(246, 67%, 20%)
HSV	hsv(246, 80%, 33%)
CMYK	cmyk(71.8%, 80%, 0%, 66.7%)
CIE-LAB	lab(10.93, 26.78, -39.77)
CIE-LCH	lch(10.93, 47.95, 303.95°)
OKLab	oklab(24.37% 0.0162 -0.1149)
OKLCH	oklch(24.37% 0.116 278)
XYZ	xyz(2.2163, 1.2508, 8.7172)
Luminance	0.0125 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181155 #4E5511

analogous

#112C55 #181155 #3A1155

triadic

#181155 #551811 #115518

tetradic

#181155 #55112C #4E5511 #11553A

square

#181155 #55112C #4E5511 #11553A

split-complementary

#181155 #553A11 #2C5511

monochromatic

#07051A #0A0722 #181155 #261B88 #3525BB

Accessibility & contrast

On white

16.80

#181155 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#181155 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181155

16.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181155	#FFFFFF	#000000	##FFFFFF
##181155	1.00	16.80	1.25	16.80
#FFFFFF	16.80	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002057

Deuteranopia (green-blind)

#001A54

Tritanopia (blue-blind)

#002432

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #181155;
/* rgb */ color: rgb(24, 17, 85);
/* oklch */ color: oklch(24.4% 0.116 278.0);

Tailwind

colors: {
  custom: {
    50: '#5f5086',
    500: '#181155',
    950: '#000000',
  },
}

SCSS

$custom: #181155;
$custom-light: #5f5086;
$custom-dark: #000000;

JSON

{
  "hex": "#181155",
  "rgb": {
    "r": 24,
    "g": 17,
    "b": 85
  },
  "hsl": {
    "h": 246.176,
    "s": 66.667,
    "l": 20
  },
  "oklch": {
    "l": 0.24374,
    "c": 0.116,
    "h": 278
  },
  "luminance": 0.01251
}

Semantic roles & 50–950 ramp

primary

#181155

secondary

#858E34

accent

#EA3ED8

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05020B

muted

#79787C

Preview Lab

Preview with #181155

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

Preview Lab → · Contrast checker → · Palette generator →