#180B4C#180B4C

#180B4C is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.4% C 0.110 H 282.0°. Best body text is #FFFFFF at 17.63:1 contrast (WCAG AA passes).

Color values

HEX	#180B4C
RGB	rgb(24, 11, 76)
HSL	hsl(252, 75%, 17%)
HSV	hsv(252, 86%, 30%)
CMYK	cmyk(68.4%, 85.5%, 0%, 70.2%)
CIE-LAB	lab(8.61, 27.20, -37.40)
CIE-LCH	lch(8.61, 46.24, 306.03°)
OKLab	oklab(22.43% 0.0229 -0.1079)
OKLCH	oklch(22.43% 0.11 282)
XYZ	xyz(1.8005, 0.9552, 6.9256)
Luminance	0.0095 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.00

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180B4C #3F4C0B

analogous

#0B1F4C #180B4C #390B4C

triadic

#180B4C #4C180B #0B4C18

tetradic

#180B4C #4C0B1F #3F4C0B #0B4C39

square

#180B4C #4C0B1F #3F4C0B #0B4C39

split-complementary

#180B4C #4C390B #1F4C0B

monochromatic

#08041B #08041B #180B4C #291381 #3A1AB7

Accessibility & contrast

On white

17.63

#180B4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#180B4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180B4C

17.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180B4C	#FFFFFF	#000000	##FFFFFF
##180B4C	1.00	17.63	1.19	17.63
#FFFFFF	17.63	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B4E

Deuteranopia (green-blind)

#00164B

Tritanopia (blue-blind)

#001E2B

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #180b4c;
/* rgb */ color: rgb(24, 11, 76);
/* oklch */ color: oklch(22.4% 0.110 282.0);

Tailwind

colors: {
  custom: {
    50: '#5d4c7f',
    500: '#180b4c',
    950: '#000000',
  },
}

SCSS

$custom: #180b4c;
$custom-light: #5d4c7f;
$custom-dark: #000000;

JSON

{
  "hex": "#180b4c",
  "rgb": {
    "r": 24,
    "g": 11,
    "b": 76
  },
  "hsl": {
    "h": 252,
    "s": 74.713,
    "l": 17.059
  },
  "oklch": {
    "l": 0.22432,
    "c": 0.11029,
    "h": 282
  },
  "luminance": 0.00955
}

Semantic roles & 50–950 ramp

primary

#180B4C

secondary

#75882B

accent

#F136CC

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#05010A

muted

#79777C

Preview Lab

Preview with #180B4C

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

Preview Lab → · Contrast checker → · Palette generator →