#180B56#180B56

#180B56 is a very dark, vivid violet. Relative luminance 0.011; OKLCH L 23.6% C 0.124 H 279.1°. Best body text is #FFFFFF at 17.20:1 contrast (WCAG AA passes).

Color values

HEX	#180B56
RGB	rgb(24, 11, 86)
HSL	hsl(250, 77%, 19%)
HSV	hsv(250, 87%, 34%)
CMYK	cmyk(72.1%, 87.2%, 0%, 66.3%)
CIE-LAB	lab(9.84, 30.59, -42.25)
CIE-LCH	lch(9.84, 52.16, 305.90°)
OKLab	oklab(23.65% 0.0196 -0.122)
OKLCH	oklch(23.65% 0.124 279.1)
XYZ	xyz(2.1755, 1.1052, 8.9010)
Luminance	0.0111 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180B56 #49560B

analogous

#0B2456 #180B56 #3E0B56

triadic

#180B56 #56180B #0B5618

tetradic

#180B56 #560B24 #49560B #0B563E

square

#180B56 #560B24 #49560B #0B563E

split-complementary

#180B56 #563E0B #24560B

monochromatic

#08031B #090420 #180B56 #27128C #3619C3

Accessibility & contrast

On white

17.20

#180B56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#180B56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180B56

17.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180B56	#FFFFFF	#000000	##FFFFFF
##180B56	1.00	17.20	1.22	17.20
#FFFFFF	17.20	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E58

Deuteranopia (green-blind)

#001855

Tritanopia (blue-blind)

#002231

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #180b56;
/* rgb */ color: rgb(24, 11, 86);
/* oklch */ color: oklch(23.6% 0.124 279.1);

Tailwind

colors: {
  custom: {
    50: '#604d87',
    500: '#180b56',
    950: '#000000',
  },
}

SCSS

$custom: #180b56;
$custom-light: #604d87;
$custom-dark: #000000;

JSON

{
  "hex": "#180b56",
  "rgb": {
    "r": 24,
    "g": 11,
    "b": 86
  },
  "hsl": {
    "h": 250.4,
    "s": 77.32,
    "l": 19.02
  },
  "oklch": {
    "l": 0.23648,
    "c": 0.12357,
    "h": 279.1
  },
  "luminance": 0.01105
}

Semantic roles & 50–950 ramp

primary

#180B56

secondary

#80912B

accent

#F434D3

background

#F6F4F8

surface

#EBE7EF

border

#C6C3CA

text

#05010B

muted

#7A777C

Preview Lab

Preview with #180B56

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

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