#18033A#18033A

#18033A is a very dark, moderate violet. Relative luminance 0.006; OKLCH L 19.0% C 0.097 H 292.7°. Best body text is #FFFFFF at 18.87:1 contrast (WCAG AA passes).

Color values

HEX	#18033A
RGB	rgb(24, 3, 58)
HSL	hsl(263, 90%, 12%)
HSV	hsv(263, 95%, 23%)
CMYK	cmyk(58.6%, 94.8%, 0%, 77.3%)
CIE-LAB	lab(5.10, 24.58, -30.38)
CIE-LCH	lch(5.10, 39.08, 308.98°)
OKLab	oklab(19.04% 0.0374 -0.0895)
OKLCH	oklch(19.04% 0.097 292.7)
XYZ	xyz(1.1728, 0.5648, 4.0494)
Luminance	0.0056 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18033A #253A03

analogous

#030A3A #18033A #34033A

triadic

#18033A #3A1803 #033A18

tetradic

#18033A #3A030A #253A03 #033A34

square

#18033A #3A030A #253A03 #033A34

split-complementary

#18033A #3A3403 #0A3A03

monochromatic

#0C021D #0C021D #18033A #300674 #4809AE

Accessibility & contrast

On white

18.87

#18033A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#18033A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18033A

18.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18033A	#FFFFFF	#000000	##FFFFFF
##18033A	1.00	18.87	1.11	18.87
#FFFFFF	18.87	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00123B

Deuteranopia (green-blind)

#001039

Tritanopia (blue-blind)

#0C131F

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #18033a;
/* rgb */ color: rgb(24, 3, 58);
/* oklch */ color: oklch(19.0% 0.097 292.7);

Tailwind

colors: {
  custom: {
    50: '#594771',
    500: '#18033a',
    950: '#000000',
  },
}

SCSS

$custom: #18033a;
$custom-light: #594771;
$custom-dark: #000000;

JSON

{
  "hex": "#18033a",
  "rgb": {
    "r": 24,
    "g": 3,
    "b": 58
  },
  "hsl": {
    "h": 262.909,
    "s": 90.164,
    "l": 11.961
  },
  "oklch": {
    "l": 0.19043,
    "c": 0.09698,
    "h": 292.7
  },
  "luminance": 0.00565
}

Semantic roles & 50–950 ramp

primary

#18033A

secondary

#587D1C

accent

#FF29AD

background

#F5F4F6

surface

#E9E6EC

border

#C5C2C7

text

#040007

muted

#79777A

Preview Lab

Preview with #18033A

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

Preview Lab → · Contrast checker → · Palette generator →