#180D4B#180D4B

#180D4B is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.6% C 0.107 H 281.8°. Best body text is #FFFFFF at 17.53:1 contrast (WCAG AA passes).

Color values

HEX	#180D4B
RGB	rgb(24, 13, 75)
HSL	hsl(251, 70%, 17%)
HSV	hsv(251, 83%, 29%)
CMYK	cmyk(68%, 82.7%, 0%, 70.6%)
CIE-LAB	lab(8.91, 25.67, -36.22)
CIE-LCH	lch(8.91, 44.40, 305.33°)
OKLab	oklab(22.6% 0.0218 -0.1045)
OKLCH	oklch(22.6% 0.107 281.8)
XYZ	xyz(1.7902, 0.9899, 6.7520)
Luminance	0.0099 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.65

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180D4B #404B0D

analogous

#0D214B #180D4B #370D4B

triadic

#180D4B #4B180D #0D4B18

tetradic

#180D4B #4B0D21 #404B0D #0D4B37

square

#180D4B #4B0D21 #404B0D #0D4B37

split-complementary

#180D4B #4B370D #214B0D

monochromatic

#08051A #08051A #180D4B #29167F #391FB3

Accessibility & contrast

On white

17.53

#180D4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#180D4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180D4B

17.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180D4B	#FFFFFF	#000000	##FFFFFF
##180D4B	1.00	17.53	1.20	17.53
#FFFFFF	17.53	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B4D

Deuteranopia (green-blind)

#00174A

Tritanopia (blue-blind)

#001F2B

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #180d4b;
/* rgb */ color: rgb(24, 13, 75);
/* oklch */ color: oklch(22.6% 0.107 281.8);

Tailwind

colors: {
  custom: {
    50: '#5d4d7e',
    500: '#180d4b',
    950: '#000000',
  },
}

SCSS

$custom: #180d4b;
$custom-light: #5d4d7e;
$custom-dark: #000000;

JSON

{
  "hex": "#180d4b",
  "rgb": {
    "r": 24,
    "g": 13,
    "b": 75
  },
  "hsl": {
    "h": 250.645,
    "s": 70.455,
    "l": 17.255
  },
  "oklch": {
    "l": 0.22603,
    "c": 0.1067,
    "h": 281.8
  },
  "luminance": 0.0099
}

Semantic roles & 50–950 ramp

primary

#180D4B

secondary

#77862E

accent

#ED3BCE

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#05010A

muted

#79777C

Preview Lab

Preview with #180D4B

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

Preview Lab → · Contrast checker → · Palette generator →