#180931#180931

#180931 is a very dark, moderate violet. Relative luminance 0.006; OKLCH L 19.1% C 0.075 H 295.7°. Best body text is #FFFFFF at 18.71:1 contrast (WCAG AA passes).

Color values

HEX	#180931
RGB	rgb(24, 9, 49)
HSL	hsl(263, 69%, 11%)
HSV	hsv(263, 82%, 19%)
CMYK	cmyk(51%, 81.6%, 0%, 80.8%)
CIE-LAB	lab(5.52, 17.83, -23.09)
CIE-LCH	lch(5.52, 29.17, 307.67°)
OKLab	oklab(19.13% 0.0325 -0.0675)
OKLCH	oklch(19.13% 0.075 295.7)
XYZ	xyz(1.0286, 0.6113, 2.9689)
Luminance	0.0061 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight

#03012D

ΔE00 5.40

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180931 #223109

analogous

#090E31 #180931 #2C0931

triadic

#180931 #311809 #093118

tetradic

#180931 #31090E #223109 #09312C

square

#180931 #31090E #223109 #09312C

split-complementary

#180931 #312C09 #0E3109

monochromatic

#0D051A #0D051A #180931 #311265 #4B1C98

Accessibility & contrast

On white

18.71

#180931 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#180931 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180931

18.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180931	#FFFFFF	#000000	##FFFFFF
##180931	1.00	18.71	1.12	18.71
#FFFFFF	18.71	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001232

Deuteranopia (green-blind)

#001230

Tritanopia (blue-blind)

#11131B

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #180931;
/* rgb */ color: rgb(24, 9, 49);
/* oklch */ color: oklch(19.1% 0.075 295.7);

Tailwind

colors: {
  custom: {
    50: '#574a69',
    500: '#180931',
    950: '#000000',
  },
}

SCSS

$custom: #180931;
$custom-light: #574a69;
$custom-dark: #000000;

JSON

{
  "hex": "#180931",
  "rgb": {
    "r": 24,
    "g": 9,
    "b": 49
  },
  "hsl": {
    "h": 262.5,
    "s": 68.966,
    "l": 11.373
  },
  "oklch": {
    "l": 0.19126,
    "c": 0.07493,
    "h": 295.7
  },
  "luminance": 0.00611
}

Semantic roles & 50–950 ramp

primary

#180931

secondary

#546F27

accent

#EC3CAA

background

#F5F4F6

surface

#E9E7EB

border

#C5C3C6

text

#030106

muted

#78777A

Preview Lab

Preview with #180931

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

Preview Lab → · Contrast checker → · Palette generator →