#18033B#18033B

#18033B is a very dark, moderate violet. Relative luminance 0.006; OKLCH L 19.2% C 0.098 H 292.1°. Best body text is #FFFFFF at 18.83:1 contrast (WCAG AA passes).

Color values

HEX	#18033B
RGB	rgb(24, 3, 59)
HSL	hsl(263, 90%, 12%)
HSV	hsv(263, 95%, 23%)
CMYK	cmyk(59.3%, 94.9%, 0%, 76.9%)
CIE-LAB	lab(5.19, 25.02, -30.95)
CIE-LCH	lch(5.19, 39.80, 308.95°)
OKLab	oklab(19.17% 0.0369 -0.091)
OKLCH	oklch(19.17% 0.098 292.1)
XYZ	xyz(1.1984, 0.5750, 4.1847)
Luminance	0.0057 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18033B #263B03

analogous

#030A3B #18033B #34033B

triadic

#18033B #3B1803 #033B18

tetradic

#18033B #3B030A #263B03 #033B34

square

#18033B #3B030A #263B03 #033B34

split-complementary

#18033B #3B3403 #0A3B03

monochromatic

#0C011D #0C011D #18033B #300675 #4709AF

Accessibility & contrast

On white

18.83

#18033B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#18033B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18033B

18.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18033B	#FFFFFF	#000000	##FFFFFF
##18033B	1.00	18.83	1.12	18.83
#FFFFFF	18.83	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00123D

Deuteranopia (green-blind)

#00103A

Tritanopia (blue-blind)

#0C131F

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #18033b;
/* rgb */ color: rgb(24, 3, 59);
/* oklch */ color: oklch(19.2% 0.098 292.1);

Tailwind

colors: {
  custom: {
    50: '#5a4772',
    500: '#18033b',
    950: '#000000',
  },
}

SCSS

$custom: #18033b;
$custom-light: #5a4772;
$custom-dark: #000000;

JSON

{
  "hex": "#18033b",
  "rgb": {
    "r": 24,
    "g": 3,
    "b": 59
  },
  "hsl": {
    "h": 262.5,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.19165,
    "c": 0.0982,
    "h": 292.1
  },
  "luminance": 0.00575
}

Semantic roles & 50–950 ramp

primary

#18033B

secondary

#597E1C

accent

#FF29AF

background

#F5F4F6

surface

#E9E6EC

border

#C5C2C7

text

#040008

muted

#79777B

Preview Lab

Preview with #18033B

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

Preview Lab → · Contrast checker → · Palette generator →