#18408B#18408B

#18408B is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.1% C 0.133 H 261.5°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#18408B
RGB	rgb(24, 64, 139)
HSL	hsl(219, 71%, 32%)
HSV	hsv(219, 83%, 55%)
CMYK	cmyk(82.7%, 54%, 0%, 45.5%)
CIE-LAB	lab(28.71, 15.57, -45.66)
CIE-LCH	lch(28.71, 48.24, 288.83°)
OKLab	oklab(39.07% -0.0197 -0.1316)
OKLCH	oklch(39.07% 0.133 261.5)
XYZ	xyz(6.8686, 5.7242, 25.1640)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18408B #8B6318

analogous

#187A8B #18408B #29188B

triadic

#18408B #8B1840 #408B18

tetradic

#18408B #8B187A #8B6318 #188B29

square

#18408B #8B187A #8B6318 #188B29

split-complementary

#18408B #8B2918 #7A8B18

monochromatic

#061023 #0F2857 #18408B #2158BF #3F77DE

Accessibility & contrast

On white

9.79

#18408B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#18408B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18408B

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18408B	#FFFFFF	#000000	##FFFFFF
##18408B	1.00	9.79	2.15	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#08498E

Deuteranopia (green-blind)

#003F8A

Tritanopia (blue-blind)

#00525F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #18408b;
/* rgb */ color: rgb(24, 64, 139);
/* oklch */ color: oklch(39.1% 0.133 261.5);

Tailwind

colors: {
  custom: {
    50: '#6974ad',
    500: '#18408b',
    950: '#000000',
  },
}

SCSS

$custom: #18408b;
$custom-light: #6974ad;
$custom-dark: #000000;

JSON

{
  "hex": "#18408b",
  "rgb": {
    "r": 24,
    "g": 64,
    "b": 139
  },
  "hsl": {
    "h": 219.13,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.39069,
    "c": 0.13307,
    "h": 261.5
  },
  "luminance": 0.05725
}

Semantic roles & 50–950 ramp

primary

#18408B

secondary

#BE9340

accent

#AF3AED

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #18408B

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

Preview Lab → · Contrast checker → · Palette generator →