#180B50#180B50

#180B50 is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.9% C 0.116 H 280.8°. Best body text is #FFFFFF at 17.46:1 contrast (WCAG AA passes).

Color values

HEX	#180B50
RGB	rgb(24, 11, 80)
HSL	hsl(251, 76%, 18%)
HSV	hsv(251, 86%, 31%)
CMYK	cmyk(70%, 86.3%, 0%, 68.6%)
CIE-LAB	lab(9.10, 28.56, -39.37)
CIE-LCH	lch(9.10, 48.64, 305.96°)
OKLab	oklab(22.91% 0.0216 -0.1136)
OKLCH	oklch(22.91% 0.116 280.8)
XYZ	xyz(1.9439, 1.0126, 7.6809)
Luminance	0.0101 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180B50 #43500B

analogous

#0B2150 #180B50 #3A0B50

triadic

#180B50 #50180B #0B5018

tetradic

#180B50 #500B21 #43500B #0B503A

square

#180B50 #500B21 #43500B #0B503A

split-complementary

#180B50 #503A0B #21500B

monochromatic

#08041B #08041B #180B50 #281286 #381ABC

Accessibility & contrast

On white

17.46

#180B50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#180B50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180B50

17.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180B50	#FFFFFF	#000000	##FFFFFF
##180B50	1.00	17.46	1.20	17.46
#FFFFFF	17.46	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C52

Deuteranopia (green-blind)

#00174F

Tritanopia (blue-blind)

#00202D

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #180b50;
/* rgb */ color: rgb(24, 11, 80);
/* oklch */ color: oklch(22.9% 0.116 280.8);

Tailwind

colors: {
  custom: {
    50: '#5e4c82',
    500: '#180b50',
    950: '#000000',
  },
}

SCSS

$custom: #180b50;
$custom-light: #5e4c82;
$custom-dark: #000000;

JSON

{
  "hex": "#180b50",
  "rgb": {
    "r": 24,
    "g": 11,
    "b": 80
  },
  "hsl": {
    "h": 251.304,
    "s": 75.824,
    "l": 17.843
  },
  "oklch": {
    "l": 0.22912,
    "c": 0.11566,
    "h": 280.8
  },
  "luminance": 0.01013
}

Semantic roles & 50–950 ramp

primary

#180B50

secondary

#7A8C2B

accent

#F235CF

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05010A

muted

#79777C

Preview Lab

Preview with #180B50

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

Preview Lab → · Contrast checker → · Palette generator →