#180B42#180B42

#180B42 is a very dark, moderate violet. Relative luminance 0.008; OKLCH L 21.3% C 0.097 H 285.6°. Best body text is #FFFFFF at 18.02:1 contrast (WCAG AA passes).

Color values

HEX	#180B42
RGB	rgb(24, 11, 66)
HSL	hsl(254, 71%, 15%)
HSV	hsv(254, 83%, 26%)
CMYK	cmyk(63.6%, 83.3%, 0%, 74.1%)
CIE-LAB	lab(7.47, 23.68, -32.26)
CIE-LCH	lch(7.47, 40.02, 306.28°)
OKLab	oklab(21.27% 0.026 -0.0929)
OKLCH	oklch(21.27% 0.097 285.6)
XYZ	xyz(1.4794, 0.8268, 5.2348)
Luminance	0.0083 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180B42 #35420B

analogous

#0B1942 #180B42 #340B42

triadic

#180B42 #42180B #0B4218

tetradic

#180B42 #420B19 #35420B #0B4234

square

#180B42 #420B19 #35420B #0B4234

split-complementary

#180B42 #42340B #19420B

monochromatic

#0A041A #0A041A #180B42 #2B1476 #3E1CAB

Accessibility & contrast

On white

18.02

#180B42 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#180B42 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180B42

18.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180B42	#FFFFFF	#000000	##FFFFFF
##180B42	1.00	18.02	1.17	18.02
#FFFFFF	18.02	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	18.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001844

Deuteranopia (green-blind)

#001541

Tritanopia (blue-blind)

#051A25

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #180b42;
/* rgb */ color: rgb(24, 11, 66);
/* oklch */ color: oklch(21.3% 0.097 285.6);

Tailwind

colors: {
  custom: {
    50: '#5b4b77',
    500: '#180b42',
    950: '#000000',
  },
}

SCSS

$custom: #180b42;
$custom-light: #5b4b77;
$custom-dark: #000000;

JSON

{
  "hex": "#180b42",
  "rgb": {
    "r": 24,
    "g": 11,
    "b": 66
  },
  "hsl": {
    "h": 254.182,
    "s": 71.429,
    "l": 15.098
  },
  "oklch": {
    "l": 0.21272,
    "c": 0.09651,
    "h": 285.6
  },
  "luminance": 0.00827
}

Semantic roles & 50–950 ramp

primary

#180B42

secondary

#6B7F2A

accent

#EE3AC3

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040109

muted

#79777B

Preview Lab

Preview with #180B42

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

Preview Lab → · Contrast checker → · Palette generator →