#18408C#18408C

#18408C is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.2% C 0.134 H 261.6°. Best body text is #FFFFFF at 9.76:1 contrast (WCAG AA passes).

Color values

HEX	#18408C
RGB	rgb(24, 64, 140)
HSL	hsl(219, 71%, 32%)
HSV	hsv(219, 83%, 55%)
CMYK	cmyk(82.9%, 54.3%, 0%, 45.1%)
CIE-LAB	lab(28.78, 15.98, -46.15)
CIE-LCH	lch(28.78, 48.84, 289.10°)
OKLab	oklab(39.15% -0.0196 -0.1331)
OKLCH	oklch(39.15% 0.134 261.6)
XYZ	xyz(6.9420, 5.7536, 25.5505)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18408C #8C6418

analogous

#187A8C #18408C #2A188C

triadic

#18408C #8C1840 #408C18

tetradic

#18408C #8C187A #8C6418 #188C2A

square

#18408C #8C187A #8C6418 #188C2A

split-complementary

#18408C #8C2A18 #7A8C18

monochromatic

#061024 #0F2858 #18408C #2158C0 #4077DE

Accessibility & contrast

On white

9.76

#18408C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#18408C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18408C

9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18408C	#FFFFFF	#000000	##FFFFFF
##18408C	1.00	9.76	2.15	9.76
#FFFFFF	9.76	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05498F

Deuteranopia (green-blind)

#003F8B

Tritanopia (blue-blind)

#00535F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #18408c;
/* rgb */ color: rgb(24, 64, 140);
/* oklch */ color: oklch(39.2% 0.134 261.6);

Tailwind

colors: {
  custom: {
    50: '#6a74ae',
    500: '#18408c',
    950: '#000000',
  },
}

SCSS

$custom: #18408c;
$custom-light: #6a74ae;
$custom-dark: #000000;

JSON

{
  "hex": "#18408c",
  "rgb": {
    "r": 24,
    "g": 64,
    "b": 140
  },
  "hsl": {
    "h": 219.31,
    "s": 70.732,
    "l": 32.157
  },
  "oklch": {
    "l": 0.39151,
    "c": 0.13449,
    "h": 261.6
  },
  "luminance": 0.05754
}

Semantic roles & 50–950 ramp

primary

#18408C

secondary

#BF9341

accent

#B03AED

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #18408C

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

Preview Lab → · Contrast checker → · Palette generator →