#18368B#18368B

#18368B is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.9% C 0.146 H 265.0°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#18368B
RGB	rgb(24, 54, 139)
HSL	hsl(224, 71%, 32%)
HSV	hsv(224, 83%, 55%)
CMYK	cmyk(82.7%, 61.2%, 0%, 45.5%)
CIE-LAB	lab(25.85, 22.54, -50.30)
CIE-LCH	lch(25.85, 55.12, 294.14°)
OKLab	oklab(36.92% -0.0127 -0.1454)
OKLCH	oklch(36.92% 0.146 265)
XYZ	xyz(6.3544, 4.6958, 24.9926)
Luminance	0.0470 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18368B #8B6D18

analogous

#18708B #18368B #34188B

triadic

#18368B #8B1836 #368B18

tetradic

#18368B #8B1870 #8B6D18 #188B34

square

#18368B #8B1870 #8B6D18 #188B34

split-complementary

#18368B #8B3418 #708B18

monochromatic

#060D23 #0F2257 #18368B #214ABF #3F69DE

Accessibility & contrast

On white

10.83

#18368B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#18368B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18368B

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18368B	#FFFFFF	#000000	##FFFFFF
##18368B	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438E

Deuteranopia (green-blind)

#003889

Tritanopia (blue-blind)

#004C5B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #18368b;
/* rgb */ color: rgb(24, 54, 139);
/* oklch */ color: oklch(36.9% 0.146 265.0);

Tailwind

colors: {
  custom: {
    50: '#6a6cae',
    500: '#18368b',
    950: '#000000',
  },
}

SCSS

$custom: #18368b;
$custom-light: #6a6cae;
$custom-dark: #000000;

JSON

{
  "hex": "#18368b",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 139
  },
  "hsl": {
    "h": 224.348,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.36915,
    "c": 0.146,
    "h": 265
  },
  "luminance": 0.04697
}

Semantic roles & 50–950 ramp

primary

#18368B

secondary

#BE9D40

accent

#BF3AED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #18368B

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

Preview Lab → · Contrast checker → · Palette generator →