#180B4D#180B4D

#180B4D is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.6% C 0.112 H 281.7°. Best body text is #FFFFFF at 17.59:1 contrast (WCAG AA passes).

Color values

HEX	#180B4D
RGB	rgb(24, 11, 77)
HSL	hsl(252, 75%, 17%)
HSV	hsv(252, 86%, 30%)
CMYK	cmyk(68.8%, 85.7%, 0%, 69.8%)
CIE-LAB	lab(8.73, 27.54, -37.90)
CIE-LCH	lch(8.73, 46.85, 306.01°)
OKLab	oklab(22.55% 0.0226 -0.1093)
OKLCH	oklch(22.55% 0.112 281.7)
XYZ	xyz(1.8355, 0.9692, 7.1101)
Luminance	0.0097 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.13

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180B4D #404D0B

analogous

#0B1F4D #180B4D #390B4D

triadic

#180B4D #4D180B #0B4D18

tetradic

#180B4D #4D0B1F #404D0B #0B4D39

square

#180B4D #4D0B1F #404D0B #0B4D39

split-complementary

#180B4D #4D390B #1F4D0B

monochromatic

#08041B #08041B #180B4D #291383 #391AB8

Accessibility & contrast

On white

17.59

#180B4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#180B4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180B4D

17.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180B4D	#FFFFFF	#000000	##FFFFFF
##180B4D	1.00	17.59	1.19	17.59
#FFFFFF	17.59	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B4F

Deuteranopia (green-blind)

#00174C

Tritanopia (blue-blind)

#001F2C

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #180b4d;
/* rgb */ color: rgb(24, 11, 77);
/* oklch */ color: oklch(22.6% 0.112 281.7);

Tailwind

colors: {
  custom: {
    50: '#5e4c80',
    500: '#180b4d',
    950: '#000000',
  },
}

SCSS

$custom: #180b4d;
$custom-light: #5e4c80;
$custom-dark: #000000;

JSON

{
  "hex": "#180b4d",
  "rgb": {
    "r": 24,
    "g": 11,
    "b": 77
  },
  "hsl": {
    "h": 251.818,
    "s": 75,
    "l": 17.255
  },
  "oklch": {
    "l": 0.22551,
    "c": 0.11165,
    "h": 281.7
  },
  "luminance": 0.00969
}

Semantic roles & 50–950 ramp

primary

#180B4D

secondary

#77892B

accent

#F236CD

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05010A

muted

#79777C

Preview Lab

Preview with #180B4D

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

Preview Lab → · Contrast checker → · Palette generator →