#18316B#18316B

#18316B is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.0% C 0.106 H 263.9°. Best body text is #FFFFFF at 12.42:1 contrast (WCAG AA passes).

Color values

HEX	#18316B
RGB	rgb(24, 49, 107)
HSL	hsl(222, 63%, 26%)
HSV	hsv(222, 78%, 42%)
CMYK	cmyk(77.6%, 54.2%, 0%, 58%)
CIE-LAB	lab(21.77, 12.95, -36.67)
CIE-LCH	lch(21.77, 38.89, 289.45°)
OKLab	oklab(33.01% -0.0112 -0.1055)
OKLCH	oklch(33.01% 0.106 263.9)
XYZ	xyz(4.1279, 3.4519, 14.3558)
Luminance	0.0345 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18316B #6B5218

analogous

#185A6B #18316B #28186B

triadic

#18316B #6B1831 #316B18

tetradic

#18316B #6B185A #6B5218 #186B28

square

#18316B #6B185A #6B5218 #186B28

split-complementary

#18316B #6B2818 #5A6B18

monochromatic

#060B19 #0D1A39 #18316B #23489D #2E5FCF

Accessibility & contrast

On white

12.42

#18316B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#18316B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18316B

12.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18316B	#FFFFFF	#000000	##FFFFFF
##18316B	1.00	12.42	1.69	12.42
#FFFFFF	12.42	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C386D

Deuteranopia (green-blind)

#00316A

Tritanopia (blue-blind)

#003F49

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #18316b;
/* rgb */ color: rgb(24, 49, 107);
/* oklch */ color: oklch(33.0% 0.106 263.9);

Tailwind

colors: {
  custom: {
    50: '#626896',
    500: '#18316b',
    950: '#000000',
  },
}

SCSS

$custom: #18316b;
$custom-light: #626896;
$custom-dark: #000000;

JSON

{
  "hex": "#18316b",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 107
  },
  "hsl": {
    "h": 221.928,
    "s": 63.359,
    "l": 25.686
  },
  "oklch": {
    "l": 0.33014,
    "c": 0.10607,
    "h": 263.9
  },
  "luminance": 0.03452
}

Semantic roles & 50–950 ramp

primary

#18316B

secondary

#A1833E

accent

#B541E6

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #18316B

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

Preview Lab → · Contrast checker → · Palette generator →