#180131#180131

#180131 is a very dark, moderate violet. Relative luminance 0.004; OKLCH L 17.6% C 0.090 H 299.9°. Best body text is #FFFFFF at 19.31:1 contrast (WCAG AA passes).

Color values

HEX	#180131
RGB	rgb(24, 1, 49)
HSL	hsl(269, 96%, 10%)
HSV	hsv(269, 98%, 19%)
CMYK	cmyk(51%, 98%, 0%, 80.8%)
CIE-LAB	lab(3.95, 21.39, -25.60)
CIE-LCH	lch(3.95, 33.36, 309.88°)
OKLab	oklab(17.56% 0.045 -0.0781)
OKLCH	oklch(17.56% 0.09 299.9)
XYZ	xyz(0.9418, 0.4376, 2.9400)
Luminance	0.0044 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180131 #1A3101

analogous

#010231 #180131 #300131

triadic

#180131 #311801 #013118

tetradic

#180131 #310102 #1A3101 #013130

square

#180131 #310102 #1A3101 #013130

split-complementary

#180131 #313001 #023101

monochromatic

#0F011E #0F011E #180131 #35026D #5303A9

Accessibility & contrast

On white

19.31

#180131 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#180131 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180131

19.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180131	#FFFFFF	#000000	##FFFFFF
##180131	1.00	19.31	1.09	19.31
#FFFFFF	19.31	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000E32

Deuteranopia (green-blind)

#000E30

Tritanopia (blue-blind)

#120D19

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #180131;
/* rgb */ color: rgb(24, 1, 49);
/* oklch */ color: oklch(17.6% 0.090 299.9);

Tailwind

colors: {
  custom: {
    50: '#574669',
    500: '#180131',
    950: '#000000',
  },
}

SCSS

$custom: #180131;
$custom-light: #574669;
$custom-dark: #000000;

JSON

{
  "hex": "#180131",
  "rgb": {
    "r": 24,
    "g": 1,
    "b": 49
  },
  "hsl": {
    "h": 268.75,
    "s": 96,
    "l": 9.804
  },
  "oklch": {
    "l": 0.17564,
    "c": 0.09016,
    "h": 299.9
  },
  "luminance": 0.00438
}

Semantic roles & 50–950 ramp

primary

#180131

secondary

#497717

accent

#FF2998

background

#F5F3F6

surface

#E9E5EB

border

#C5C1C6

text

#030006

muted

#78777A

Preview Lab

Preview with #180131

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

Preview Lab → · Contrast checker → · Palette generator →