#180C4E#180C4E

#180C4E is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.8% C 0.112 H 281.1°. Best body text is #FFFFFF at 17.48:1 contrast (WCAG AA passes).

Color values

HEX	#180C4E
RGB	rgb(24, 12, 78)
HSL	hsl(251, 73%, 18%)
HSV	hsv(251, 85%, 31%)
CMYK	cmyk(69.2%, 84.6%, 0%, 69.4%)
CIE-LAB	lab(9.05, 27.31, -38.06)
CIE-LCH	lch(9.05, 46.85, 305.66°)
OKLab	oklab(22.81% 0.0216 -0.1098)
OKLCH	oklch(22.81% 0.112 281.1)
XYZ	xyz(1.8829, 1.0071, 7.3014)
Luminance	0.0101 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.16

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180C4E #424E0C

analogous

#0C214E #180C4E #390C4E

triadic

#180C4E #4E180C #0C4E18

tetradic

#180C4E #4E0C21 #424E0C #0C4E39

square

#180C4E #4E0C21 #424E0C #0C4E39

split-complementary

#180C4E #4E390C #214E0C

monochromatic

#08041B #08041B #180C4E #281483 #391CB8

Accessibility & contrast

On white

17.48

#180C4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#180C4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180C4E

17.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180C4E	#FFFFFF	#000000	##FFFFFF
##180C4E	1.00	17.48	1.20	17.48
#FFFFFF	17.48	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C50

Deuteranopia (green-blind)

#00174D

Tritanopia (blue-blind)

#001F2D

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #180c4e;
/* rgb */ color: rgb(24, 12, 78);
/* oklch */ color: oklch(22.8% 0.112 281.1);

Tailwind

colors: {
  custom: {
    50: '#5e4d80',
    500: '#180c4e',
    950: '#000000',
  },
}

SCSS

$custom: #180c4e;
$custom-light: #5e4d80;
$custom-dark: #000000;

JSON

{
  "hex": "#180c4e",
  "rgb": {
    "r": 24,
    "g": 12,
    "b": 78
  },
  "hsl": {
    "h": 250.909,
    "s": 73.333,
    "l": 17.647
  },
  "oklch": {
    "l": 0.22809,
    "c": 0.11193,
    "h": 281.1
  },
  "luminance": 0.01007
}

Semantic roles & 50–950 ramp

primary

#180C4E

secondary

#798A2C

accent

#F038CF

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05010A

muted

#79777C

Preview Lab

Preview with #180C4E

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

Preview Lab → · Contrast checker → · Palette generator →