#180C4C#180C4C

#180C4C is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.6% C 0.109 H 281.7°. Best body text is #FFFFFF at 17.56:1 contrast (WCAG AA passes).

Color values

HEX	#180C4C
RGB	rgb(24, 12, 76)
HSL	hsl(251, 73%, 17%)
HSV	hsv(251, 84%, 30%)
CMYK	cmyk(68.4%, 84.2%, 0%, 70.2%)
CIE-LAB	lab(8.81, 26.62, -37.07)
CIE-LCH	lch(8.81, 45.64, 305.69°)
OKLab	oklab(22.57% 0.0222 -0.1069)
OKLCH	oklch(22.57% 0.109 281.7)
XYZ	xyz(1.8123, 0.9788, 6.9295)
Luminance	0.0098 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.89

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180C4C #404C0C

analogous

#0C204C #180C4C #380C4C

triadic

#180C4C #4C180C #0C4C18

tetradic

#180C4C #4C0C20 #404C0C #0C4C38

square

#180C4C #4C0C20 #404C0C #0C4C38

split-complementary

#180C4C #4C380C #204C0C

monochromatic

#08041A #08041A #180C4C #291481 #391DB6

Accessibility & contrast

On white

17.56

#180C4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#180C4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180C4C

17.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180C4C	#FFFFFF	#000000	##FFFFFF
##180C4C	1.00	17.56	1.20	17.56
#FFFFFF	17.56	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B4E

Deuteranopia (green-blind)

#00174B

Tritanopia (blue-blind)

#001F2B

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #180c4c;
/* rgb */ color: rgb(24, 12, 76);
/* oklch */ color: oklch(22.6% 0.109 281.7);

Tailwind

colors: {
  custom: {
    50: '#5d4c7f',
    500: '#180c4c',
    950: '#000000',
  },
}

SCSS

$custom: #180c4c;
$custom-light: #5d4c7f;
$custom-dark: #000000;

JSON

{
  "hex": "#180c4c",
  "rgb": {
    "r": 24,
    "g": 12,
    "b": 76
  },
  "hsl": {
    "h": 251.25,
    "s": 72.727,
    "l": 17.255
  },
  "oklch": {
    "l": 0.22573,
    "c": 0.10921,
    "h": 281.7
  },
  "luminance": 0.00979
}

Semantic roles & 50–950 ramp

primary

#180C4C

secondary

#77882C

accent

#EF38CD

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#05010A

muted

#79777C

Preview Lab

Preview with #180C4C

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

Preview Lab → · Contrast checker → · Palette generator →