#180C3A#180C3A

#180C3A is a very dark, moderate violet. Relative luminance 0.008; OKLCH L 20.6% C 0.084 H 288.8°. Best body text is #FFFFFF at 18.22:1 contrast (WCAG AA passes).

Color values

HEX	#180C3A
RGB	rgb(24, 12, 58)
HSL	hsl(256, 66%, 14%)
HSV	hsv(256, 79%, 23%)
CMYK	cmyk(58.6%, 79.3%, 0%, 77.3%)
CIE-LAB	lab(6.89, 20.04, -27.48)
CIE-LCH	lch(6.89, 34.01, 306.11°)
OKLab	oklab(20.57% 0.027 -0.0791)
OKLCH	oklch(20.57% 0.084 288.8)
XYZ	xyz(1.2717, 0.7626, 4.0824)
Luminance	0.0076 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180C3A #2E3A0C

analogous

#0C173A #180C3A #2F0C3A

triadic

#180C3A #3A180C #0C3A18

tetradic

#180C3A #3A0C17 #2E3A0C #0C3A2F

square

#180C3A #3A0C17 #2E3A0C #0C3A2F

split-complementary

#180C3A #3A2F0C #173A0C

monochromatic

#0A0519 #0A0519 #180C3A #2D166D #42219F

Accessibility & contrast

On white

18.22

#180C3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#180C3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180C3A

18.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180C3A	#FFFFFF	#000000	##FFFFFF
##180C3A	1.00	18.22	1.15	18.22
#FFFFFF	18.22	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00163B

Deuteranopia (green-blind)

#001439

Tritanopia (blue-blind)

#0C1821

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #180c3a;
/* rgb */ color: rgb(24, 12, 58);
/* oklch */ color: oklch(20.6% 0.084 288.8);

Tailwind

colors: {
  custom: {
    50: '#594c71',
    500: '#180c3a',
    950: '#000000',
  },
}

SCSS

$custom: #180c3a;
$custom-light: #594c71;
$custom-dark: #000000;

JSON

{
  "hex": "#180c3a",
  "rgb": {
    "r": 24,
    "g": 12,
    "b": 58
  },
  "hsl": {
    "h": 255.652,
    "s": 65.714,
    "l": 13.725
  },
  "oklch": {
    "l": 0.20567,
    "c": 0.0836,
    "h": 288.8
  },
  "luminance": 0.00763
}

Semantic roles & 50–950 ramp

primary

#180C3A

secondary

#63762C

accent

#E93FBC

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040107

muted

#79777A

Preview Lab

Preview with #180C3A

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

Preview Lab → · Contrast checker → · Palette generator →