#18367B#18367B

#18367B is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.5% C 0.123 H 263.6°. Best body text is #FFFFFF at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#18367B
RGB	rgb(24, 54, 123)
HSL	hsl(222, 67%, 29%)
HSV	hsv(222, 80%, 48%)
CMYK	cmyk(80.5%, 56.1%, 0%, 51.8%)
CIE-LAB	lab(24.52, 16.00, -42.45)
CIE-LCH	lch(24.52, 45.36, 290.66°)
OKLab	oklab(35.5% -0.0137 -0.1224)
OKLCH	oklch(35.5% 0.123 263.6)
XYZ	xyz(5.2697, 4.2620, 19.2800)
Luminance	0.0426 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18367B #7B5D18

analogous

#18687B #18367B #2C187B

triadic

#18367B #7B1836 #367B18

tetradic

#18367B #7B1868 #7B5D18 #187B2C

square

#18367B #7B1868 #7B5D18 #187B2C

split-complementary

#18367B #7B2C18 #687B18

monochromatic

#050B1A #0E2048 #18367B #224CAE #3667D8

Accessibility & contrast

On white

11.34

#18367B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#18367B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18367B

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18367B	#FFFFFF	#000000	##FFFFFF
##18367B	1.00	11.34	1.85	11.34
#FFFFFF	11.34	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F7D

Deuteranopia (green-blind)

#00367A

Tritanopia (blue-blind)

#004753

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #18367b;
/* rgb */ color: rgb(24, 54, 123);
/* oklch */ color: oklch(35.5% 0.123 263.6);

Tailwind

colors: {
  custom: {
    50: '#666ca2',
    500: '#18367b',
    950: '#000000',
  },
}

SCSS

$custom: #18367b;
$custom-light: #666ca2;
$custom-dark: #000000;

JSON

{
  "hex": "#18367b",
  "rgb": {
    "r": 24,
    "g": 54,
    "b": 123
  },
  "hsl": {
    "h": 221.818,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.35497,
    "c": 0.12313,
    "h": 263.6
  },
  "luminance": 0.04263
}

Semantic roles & 50–950 ramp

primary

#18367B

secondary

#B08E3F

accent

#B63EEA

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #18367B

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

Preview Lab → · Contrast checker → · Palette generator →