#180A4A#180A4A

#180A4A is a very dark, moderate violet. Relative luminance 0.009; OKLCH L 22.1% C 0.109 H 282.9°. Best body text is #FFFFFF at 17.78:1 contrast (WCAG AA passes).

Color values

HEX	#180A4A
RGB	rgb(24, 10, 74)
HSL	hsl(253, 76%, 16%)
HSV	hsv(253, 86%, 29%)
CMYK	cmyk(67.6%, 86.5%, 0%, 71%)
CIE-LAB	lab(8.18, 27.07, -36.72)
CIE-LCH	lch(8.18, 45.62, 306.40°)
OKLab	oklab(22.06% 0.0243 -0.1059)
OKLCH	oklch(22.06% 0.109 282.9)
XYZ	xyz(1.7209, 0.9056, 6.5613)
Luminance	0.0091 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.86

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180A4A #3C4A0A

analogous

#0A1C4A #180A4A #380A4A

triadic

#180A4A #4A180A #0A4A18

tetradic

#180A4A #4A0A1C #3C4A0A #0A4A38

square

#180A4A #4A0A1C #3C4A0A #0A4A38

split-complementary

#180A4A #4A380A #1C4A0A

monochromatic

#09041B #09041B #180A4A #291180 #3B19B6

Accessibility & contrast

On white

17.78

#180A4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#180A4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180A4A

17.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180A4A	#FFFFFF	#000000	##FFFFFF
##180A4A	1.00	17.78	1.18	17.78
#FFFFFF	17.78	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A4C

Deuteranopia (green-blind)

#001649

Tritanopia (blue-blind)

#001D2A

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #180a4a;
/* rgb */ color: rgb(24, 10, 74);
/* oklch */ color: oklch(22.1% 0.109 282.9);

Tailwind

colors: {
  custom: {
    50: '#5d4b7d',
    500: '#180a4a',
    950: '#000000',
  },
}

SCSS

$custom: #180a4a;
$custom-light: #5d4b7d;
$custom-dark: #000000;

JSON

{
  "hex": "#180a4a",
  "rgb": {
    "r": 24,
    "g": 10,
    "b": 74
  },
  "hsl": {
    "h": 253.125,
    "s": 76.19,
    "l": 16.471
  },
  "oklch": {
    "l": 0.22058,
    "c": 0.10865,
    "h": 282.9
  },
  "luminance": 0.00906
}

Semantic roles & 50–950 ramp

primary

#180A4A

secondary

#728729

accent

#F335C9

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#05010A

muted

#79777C

Preview Lab

Preview with #180A4A

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

Preview Lab → · Contrast checker → · Palette generator →