#180C51#180C51

#180C51 is a very dark, moderate violet. Relative luminance 0.011; OKLCH L 23.2% C 0.116 H 280.3°. Best body text is #FFFFFF at 17.35:1 contrast (WCAG AA passes).

Color values

HEX	#180C51
RGB	rgb(24, 12, 81)
HSL	hsl(250, 74%, 18%)
HSV	hsv(250, 85%, 32%)
CMYK	cmyk(70.4%, 85.2%, 0%, 68.2%)
CIE-LAB	lab(9.41, 28.35, -39.54)
CIE-LCH	lch(9.41, 48.65, 305.64°)
OKLab	oklab(23.17% 0.0207 -0.1141)
OKLCH	oklch(23.17% 0.116 280.3)
XYZ	xyz(1.9929, 1.0511, 7.8808)
Luminance	0.0105 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180C51 #45510C

analogous

#0C2251 #180C51 #3A0C51

triadic

#180C51 #51180C #0C5118

tetradic

#180C51 #510C22 #45510C #0C513A

square

#180C51 #510C22 #45510C #0C513A

split-complementary

#180C51 #513A0C #22510C

monochromatic

#08041B #08041C #180C51 #281486 #381CBC

Accessibility & contrast

On white

17.35

#180C51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#180C51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180C51

17.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180C51	#FFFFFF	#000000	##FFFFFF
##180C51	1.00	17.35	1.21	17.35
#FFFFFF	17.35	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D53

Deuteranopia (green-blind)

#001850

Tritanopia (blue-blind)

#00212E

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #180c51;
/* rgb */ color: rgb(24, 12, 81);
/* oklch */ color: oklch(23.2% 0.116 280.3);

Tailwind

colors: {
  custom: {
    50: '#5f4d83',
    500: '#180c51',
    950: '#000000',
  },
}

SCSS

$custom: #180c51;
$custom-light: #5f4d83;
$custom-dark: #000000;

JSON

{
  "hex": "#180c51",
  "rgb": {
    "r": 24,
    "g": 12,
    "b": 81
  },
  "hsl": {
    "h": 250.435,
    "s": 74.194,
    "l": 18.235
  },
  "oklch": {
    "l": 0.23167,
    "c": 0.11598,
    "h": 280.3
  },
  "luminance": 0.01051
}

Semantic roles & 50–950 ramp

primary

#180C51

secondary

#7C8C2C

accent

#F137D1

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05010B

muted

#79777C

Preview Lab

Preview with #180C51

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

Preview Lab → · Contrast checker → · Palette generator →