#181156#181156

#181156 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.5% C 0.117 H 277.8°. Best body text is #FFFFFF at 16.75:1 contrast (WCAG AA passes).

Color values

HEX	#181156
RGB	rgb(24, 17, 86)
HSL	hsl(246, 67%, 20%)
HSV	hsv(246, 80%, 34%)
CMYK	cmyk(72.1%, 80.2%, 0%, 66.3%)
CIE-LAB	lab(11.04, 27.14, -40.27)
CIE-LCH	lch(11.04, 48.56, 303.98°)
OKLab	oklab(24.49% 0.0159 -0.1163)
OKLCH	oklch(24.49% 0.117 277.8)
XYZ	xyz(2.2563, 1.2668, 8.9279)
Luminance	0.0127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181156 #4F5611

analogous

#112C56 #181156 #3A1156

triadic

#181156 #561811 #115618

tetradic

#181156 #56112C #4F5611 #11563A

square

#181156 #56112C #4F5611 #11563A

split-complementary

#181156 #563A11 #2C5611

monochromatic

#07051A #0A0723 #181156 #261B89 #3525BC

Accessibility & contrast

On white

16.75

#181156 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#181156 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181156

16.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181156	#FFFFFF	#000000	##FFFFFF
##181156	1.00	16.75	1.25	16.75
#FFFFFF	16.75	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002058

Deuteranopia (green-blind)

#001B55

Tritanopia (blue-blind)

#002532

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #181156;
/* rgb */ color: rgb(24, 17, 86);
/* oklch */ color: oklch(24.5% 0.117 277.8);

Tailwind

colors: {
  custom: {
    50: '#5f5086',
    500: '#181156',
    950: '#000000',
  },
}

SCSS

$custom: #181156;
$custom-light: #5f5086;
$custom-dark: #000000;

JSON

{
  "hex": "#181156",
  "rgb": {
    "r": 24,
    "g": 17,
    "b": 86
  },
  "hsl": {
    "h": 246.087,
    "s": 66.99,
    "l": 20.196
  },
  "oklch": {
    "l": 0.24489,
    "c": 0.11738,
    "h": 277.8
  },
  "luminance": 0.01267
}

Semantic roles & 50–950 ramp

primary

#181156

secondary

#868F34

accent

#EA3ED8

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05020B

muted

#79787C

Preview Lab

Preview with #181156

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

Preview Lab → · Contrast checker → · Palette generator →