#180B40#180B40

#180B40 is a very dark, moderate violet. Relative luminance 0.008; OKLCH L 21.0% C 0.094 H 286.5°. Best body text is #FFFFFF at 18.09:1 contrast (WCAG AA passes).

Color values

HEX	#180B40
RGB	rgb(24, 11, 64)
HSL	hsl(255, 71%, 15%)
HSV	hsv(255, 83%, 25%)
CMYK	cmyk(62.5%, 82.8%, 0%, 74.9%)
CIE-LAB	lab(7.26, 22.94, -31.18)
CIE-LCH	lch(7.26, 38.71, 306.34°)
OKLab	oklab(21.05% 0.0266 -0.0898)
OKLCH	oklch(21.05% 0.094 286.5)
XYZ	xyz(1.4215, 0.8036, 4.9297)
Luminance	0.0080 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180B40 #33400B

analogous

#0B1940 #180B40 #330B40

triadic

#180B40 #40180B #0B4018

tetradic

#180B40 #400B19 #33400B #0B4033

square

#180B40 #400B19 #33400B #0B4033

split-complementary

#180B40 #40330B #19400B

monochromatic

#0A041A #0A041A #180B40 #2C1474 #3F1DA8

Accessibility & contrast

On white

18.09

#180B40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#180B40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180B40

18.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180B40	#FFFFFF	#000000	##FFFFFF
##180B40	1.00	18.09	1.16	18.09
#FFFFFF	18.09	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001742

Deuteranopia (green-blind)

#00143F

Tritanopia (blue-blind)

#071924

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #180b40;
/* rgb */ color: rgb(24, 11, 64);
/* oklch */ color: oklch(21.0% 0.094 286.5);

Tailwind

colors: {
  custom: {
    50: '#5b4b75',
    500: '#180b40',
    950: '#000000',
  },
}

SCSS

$custom: #180b40;
$custom-light: #5b4b75;
$custom-dark: #000000;

JSON

{
  "hex": "#180b40",
  "rgb": {
    "r": 24,
    "g": 11,
    "b": 64
  },
  "hsl": {
    "h": 254.717,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.21048,
    "c": 0.09368,
    "h": 286.5
  },
  "luminance": 0.00804
}

Semantic roles & 50–950 ramp

primary

#180B40

secondary

#687D2A

accent

#ED3AC2

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040108

muted

#79777B

Preview Lab

Preview with #180B40

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

Preview Lab → · Contrast checker → · Palette generator →