#18318D#18318D

#18318D is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.1% C 0.155 H 266.4°. Best body text is #FFFFFF at 11.27:1 contrast (WCAG AA passes).

Color values

HEX	#18318D
RGB	rgb(24, 49, 141)
HSL	hsl(227, 71%, 32%)
HSV	hsv(227, 83%, 55%)
CMYK	cmyk(83%, 65.2%, 0%, 44.7%)
CIE-LAB	lab(24.68, 26.80, -53.45)
CIE-LCH	lch(24.68, 59.80, 296.63°)
OKLab	oklab(36.1% -0.0097 -0.1547)
OKLCH	oklch(36.1% 0.155 266.4)
XYZ	xyz(6.2810, 4.3132, 25.6956)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18318D #8D7418

analogous

#186C8D #18318D #39188D

triadic

#18318D #8D1831 #318D18

tetradic

#18318D #8D186C #8D7418 #188D39

square

#18318D #8D186C #8D7418 #188D39

split-complementary

#18318D #8D3918 #6C8D18

monochromatic

#060D24 #0F1F59 #18318D #2143C1 #4163DF

Accessibility & contrast

On white

11.27

#18318D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#18318D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18318D

11.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18318D	#FFFFFF	#000000	##FFFFFF
##18318D	1.00	11.27	1.86	11.27
#FFFFFF	11.27	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004090

Deuteranopia (green-blind)

#00358B

Tritanopia (blue-blind)

#00495A

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #18318d;
/* rgb */ color: rgb(24, 49, 141);
/* oklch */ color: oklch(36.1% 0.155 266.4);

Tailwind

colors: {
  custom: {
    50: '#6b68af',
    500: '#18318d',
    950: '#000000',
  },
}

SCSS

$custom: #18318d;
$custom-light: #6b68af;
$custom-dark: #000000;

JSON

{
  "hex": "#18318d",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 141
  },
  "hsl": {
    "h": 227.179,
    "s": 70.909,
    "l": 32.353
  },
  "oklch": {
    "l": 0.36102,
    "c": 0.15505,
    "h": 266.4
  },
  "luminance": 0.04314
}

Semantic roles & 50–950 ramp

primary

#18318D

secondary

#BFA442

accent

#C73AEE

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #18318D

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

Preview Lab → · Contrast checker → · Palette generator →