#180A39#180A39

#180A39 is a very dark, moderate violet. Relative luminance 0.007; OKLCH L 20.1% C 0.085 H 290.3°. Best body text is #FFFFFF at 18.40:1 contrast (WCAG AA passes).

Color values

HEX	#180A39
RGB	rgb(24, 10, 57)
HSL	hsl(258, 70%, 13%)
HSV	hsv(258, 82%, 22%)
CMYK	cmyk(57.9%, 82.5%, 0%, 77.6%)
CIE-LAB	lab(6.38, 20.70, -27.57)
CIE-LCH	lch(6.38, 34.48, 306.90°)
OKLab	oklab(20.13% 0.0295 -0.0797)
OKLCH	oklch(20.13% 0.085 290.3)
XYZ	xyz(1.2235, 0.7066, 3.9420)
Luminance	0.0071 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180A39 #2B390A

analogous

#0A1339 #180A39 #2F0A39

triadic

#180A39 #39180A #0A3918

tetradic

#180A39 #390A13 #2B390A #0A392F

square

#180A39 #390A13 #2B390A #0A392F

split-complementary

#180A39 #392F0A #13390A

monochromatic

#0B051A #0B051A #180A39 #2E136D #441CA1

Accessibility & contrast

On white

18.40

#180A39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#180A39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180A39

18.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180A39	#FFFFFF	#000000	##FFFFFF
##180A39	1.00	18.40	1.14	18.40
#FFFFFF	18.40	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00153A

Deuteranopia (green-blind)

#001338

Tritanopia (blue-blind)

#0D1620

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #180a39;
/* rgb */ color: rgb(24, 10, 57);
/* oklch */ color: oklch(20.1% 0.085 290.3);

Tailwind

colors: {
  custom: {
    50: '#594a70',
    500: '#180a39',
    950: '#000000',
  },
}

SCSS

$custom: #180a39;
$custom-light: #594a70;
$custom-dark: #000000;

JSON

{
  "hex": "#180a39",
  "rgb": {
    "r": 24,
    "g": 10,
    "b": 57
  },
  "hsl": {
    "h": 257.872,
    "s": 70.149,
    "l": 13.137
  },
  "oklch": {
    "l": 0.20126,
    "c": 0.085,
    "h": 290.3
  },
  "luminance": 0.00707
}

Semantic roles & 50–950 ramp

primary

#180A39

secondary

#5F7628

accent

#ED3BB8

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040107

muted

#79777A

Preview Lab

Preview with #180A39

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

Preview Lab → · Contrast checker → · Palette generator →