#18408F#18408F

#18408F is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.4% C 0.139 H 262.0°. Best body text is #FFFFFF at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#18408F
RGB	rgb(24, 64, 143)
HSL	hsl(220, 71%, 33%)
HSV	hsv(220, 83%, 56%)
CMYK	cmyk(83.2%, 55.2%, 0%, 43.9%)
CIE-LAB	lab(29.01, 17.20, -47.62)
CIE-LCH	lch(29.01, 50.64, 289.86°)
OKLab	oklab(39.4% -0.0192 -0.1374)
OKLCH	oklch(39.4% 0.139 262)
XYZ	xyz(7.1662, 5.8433, 26.7314)
Luminance	0.0584 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18408F #8F6718

analogous

#187B8F #18408F #2C188F

triadic

#18408F #8F1840 #408F18

tetradic

#18408F #8F187B #8F6718 #188F2C

square

#18408F #8F187B #8F6718 #188F2C

split-complementary

#18408F #8F2C18 #7B8F18

monochromatic

#061126 #0F295B #18408F #2157C3 #4277DF

Accessibility & contrast

On white

9.68

#18408F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#18408F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18408F

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18408F	#FFFFFF	#000000	##FFFFFF
##18408F	1.00	9.68	2.17	9.68
#FFFFFF	9.68	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A92

Deuteranopia (green-blind)

#003F8D

Tritanopia (blue-blind)

#005361

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #18408f;
/* rgb */ color: rgb(24, 64, 143);
/* oklch */ color: oklch(39.4% 0.139 262.0);

Tailwind

colors: {
  custom: {
    50: '#6a74b0',
    500: '#18408f',
    950: '#000000',
  },
}

SCSS

$custom: #18408f;
$custom-light: #6a74b0;
$custom-dark: #000000;

JSON

{
  "hex": "#18408f",
  "rgb": {
    "r": 24,
    "g": 64,
    "b": 143
  },
  "hsl": {
    "h": 219.832,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.394,
    "c": 0.13873,
    "h": 262
  },
  "luminance": 0.05844
}

Semantic roles & 50–950 ramp

primary

#18408F

secondary

#C09643

accent

#B13AEE

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#080811

muted

#7A7B80

Preview Lab

Preview with #18408F

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

Preview Lab → · Contrast checker → · Palette generator →