#180231#180231

#180231 is a very dark, moderate violet. Relative luminance 0.005; OKLCH L 17.8% C 0.088 H 299.4°. Best body text is #FFFFFF at 19.23:1 contrast (WCAG AA passes).

Color values

HEX	#180231
RGB	rgb(24, 2, 49)
HSL	hsl(268, 92%, 10%)
HSV	hsv(268, 96%, 19%)
CMYK	cmyk(51%, 95.9%, 0%, 80.8%)
CIE-LAB	lab(4.15, 20.95, -25.29)
CIE-LCH	lch(4.15, 32.84, 309.65°)
OKLab	oklab(17.77% 0.0432 -0.0767)
OKLCH	oklch(17.77% 0.088 299.4)
XYZ	xyz(0.9526, 0.4593, 2.9436)
Luminance	0.0046 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180231 #1B3102

analogous

#020431 #180231 #2F0231

triadic

#180231 #311802 #023118

tetradic

#180231 #310204 #1B3102 #02312F

square

#180231 #310204 #1B3102 #02312F

split-complementary

#180231 #312F02 #043102

monochromatic

#0E011D #0E011D #180231 #35046C #5207A7

Accessibility & contrast

On white

19.23

#180231 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#180231 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180231

19.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180231	#FFFFFF	#000000	##FFFFFF
##180231	1.00	19.23	1.09	19.23
#FFFFFF	19.23	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000E32

Deuteranopia (green-blind)

#000E30

Tritanopia (blue-blind)

#120E19

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #180231;
/* rgb */ color: rgb(24, 2, 49);
/* oklch */ color: oklch(17.8% 0.088 299.4);

Tailwind

colors: {
  custom: {
    50: '#574669',
    500: '#180231',
    950: '#000000',
  },
}

SCSS

$custom: #180231;
$custom-light: #574669;
$custom-dark: #000000;

JSON

{
  "hex": "#180231",
  "rgb": {
    "r": 24,
    "g": 2,
    "b": 49
  },
  "hsl": {
    "h": 268.085,
    "s": 92.157,
    "l": 10
  },
  "oklch": {
    "l": 0.17775,
    "c": 0.08802,
    "h": 299.4
  },
  "luminance": 0.00459
}

Semantic roles & 50–950 ramp

primary

#180231

secondary

#4A7519

accent

#FF299B

background

#F5F3F6

surface

#E9E5EB

border

#C5C1C6

text

#030006

muted

#78777A

Preview Lab

Preview with #180231

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

Preview Lab → · Contrast checker → · Palette generator →