#180C4A#180C4A

#180C4A is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.3% C 0.106 H 282.4°. Best body text is #FFFFFF at 17.64:1 contrast (WCAG AA passes).

Color values

HEX	#180C4A
RGB	rgb(24, 12, 74)
HSL	hsl(252, 72%, 17%)
HSV	hsv(252, 84%, 29%)
CMYK	cmyk(67.6%, 83.8%, 0%, 71%)
CIE-LAB	lab(8.58, 25.93, -36.06)
CIE-LCH	lch(8.58, 44.41, 305.71°)
OKLab	oklab(22.34% 0.0228 -0.104)
OKLCH	oklch(22.34% 0.106 282.4)
XYZ	xyz(1.7438, 0.9514, 6.5690)
Luminance	0.0095 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180C4A #3E4A0C

analogous

#0C1F4A #180C4A #370C4A

triadic

#180C4A #4A180C #0C4A18

tetradic

#180C4A #4A0C1F #3E4A0C #0C4A37

square

#180C4A #4A0C1F #3E4A0C #0C4A37

split-complementary

#180C4A #4A370C #1F4A0C

monochromatic

#09041A #09041A #180C4A #29157F #3A1DB3

Accessibility & contrast

On white

17.64

#180C4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#180C4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180C4A

17.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180C4A	#FFFFFF	#000000	##FFFFFF
##180C4A	1.00	17.64	1.19	17.64
#FFFFFF	17.64	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B4C

Deuteranopia (green-blind)

#001649

Tritanopia (blue-blind)

#001E2A

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #180c4a;
/* rgb */ color: rgb(24, 12, 74);
/* oklch */ color: oklch(22.3% 0.106 282.4);

Tailwind

colors: {
  custom: {
    50: '#5d4c7d',
    500: '#180c4a',
    950: '#000000',
  },
}

SCSS

$custom: #180c4a;
$custom-light: #5d4c7d;
$custom-dark: #000000;

JSON

{
  "hex": "#180c4a",
  "rgb": {
    "r": 24,
    "g": 12,
    "b": 74
  },
  "hsl": {
    "h": 251.613,
    "s": 72.093,
    "l": 16.863
  },
  "oklch": {
    "l": 0.22339,
    "c": 0.10647,
    "h": 282.4
  },
  "luminance": 0.00952
}

Semantic roles & 50–950 ramp

primary

#180C4A

secondary

#74862C

accent

#EF39CC

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#05010A

muted

#79777C

Preview Lab

Preview with #180C4A

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

Preview Lab → · Contrast checker → · Palette generator →