#180B52#180B52

#180B52 is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 23.2% C 0.118 H 280.2°. Best body text is #FFFFFF at 17.38:1 contrast (WCAG AA passes).

Color values

HEX	#180B52
RGB	rgb(24, 11, 82)
HSL	hsl(251, 76%, 18%)
HSV	hsv(251, 87%, 32%)
CMYK	cmyk(70.7%, 86.6%, 0%, 67.8%)
CIE-LAB	lab(9.34, 29.24, -40.34)
CIE-LCH	lch(9.34, 49.82, 305.94°)
OKLab	oklab(23.16% 0.021 -0.1164)
OKLCH	oklch(23.16% 0.118 280.2)
XYZ	xyz(2.0189, 1.0426, 8.0759)
Luminance	0.0104 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180B52 #45520B

analogous

#0B2152 #180B52 #3B0B52

triadic

#180B52 #52180B #0B5218

tetradic

#180B52 #520B21 #45520B #0B523B

square

#180B52 #520B21 #45520B #0B523B

split-complementary

#180B52 #523B0B #21520B

monochromatic

#08041B #08041C #180B52 #281288 #3819BE

Accessibility & contrast

On white

17.38

#180B52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#180B52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180B52

17.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180B52	#FFFFFF	#000000	##FFFFFF
##180B52	1.00	17.38	1.21	17.38
#FFFFFF	17.38	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D54

Deuteranopia (green-blind)

#001751

Tritanopia (blue-blind)

#00212F

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #180b52;
/* rgb */ color: rgb(24, 11, 82);
/* oklch */ color: oklch(23.2% 0.118 280.2);

Tailwind

colors: {
  custom: {
    50: '#5f4c83',
    500: '#180b52',
    950: '#000000',
  },
}

SCSS

$custom: #180b52;
$custom-light: #5f4c83;
$custom-dark: #000000;

JSON

{
  "hex": "#180b52",
  "rgb": {
    "r": 24,
    "g": 11,
    "b": 82
  },
  "hsl": {
    "h": 250.986,
    "s": 76.344,
    "l": 18.235
  },
  "oklch": {
    "l": 0.23156,
    "c": 0.11832,
    "h": 280.2
  },
  "luminance": 0.01043
}

Semantic roles & 50–950 ramp

primary

#180B52

secondary

#7C8E2B

accent

#F335D0

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05010B

muted

#79777C

Preview Lab

Preview with #180B52

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

Preview Lab → · Contrast checker → · Palette generator →