#18316A#18316A

#18316A is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.9% C 0.105 H 263.8°. Best body text is #FFFFFF at 12.45:1 contrast (WCAG AA passes).

Color values

HEX	#18316A
RGB	rgb(24, 49, 106)
HSL	hsl(222, 63%, 25%)
HSV	hsv(222, 77%, 42%)
CMYK	cmyk(77.4%, 53.8%, 0%, 58.4%)
CIE-LAB	lab(21.69, 12.54, -36.15)
CIE-LCH	lch(21.69, 38.26, 289.12°)
OKLab	oklab(32.93% -0.0113 -0.1039)
OKLCH	oklch(32.93% 0.105 263.8)
XYZ	xyz(4.0756, 3.4310, 14.0803)
Luminance	0.0343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18316A #6A5118

analogous

#185A6A #18316A #28186A

triadic

#18316A #6A1831 #316A18

tetradic

#18316A #6A185A #6A5118 #186A28

square

#18316A #6A185A #6A5118 #186A28

split-complementary

#18316A #6A2818 #5A6A18

monochromatic

#060C19 #0D1A38 #18316A #23489C #2F5FCE

Accessibility & contrast

On white

12.45

#18316A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#18316A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18316A

12.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18316A	#FFFFFF	#000000	##FFFFFF
##18316A	1.00	12.45	1.69	12.45
#FFFFFF	12.45	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D386C

Deuteranopia (green-blind)

#003069

Tritanopia (blue-blind)

#003F48

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #18316a;
/* rgb */ color: rgb(24, 49, 106);
/* oklch */ color: oklch(32.9% 0.105 263.8);

Tailwind

colors: {
  custom: {
    50: '#626895',
    500: '#18316a',
    950: '#000000',
  },
}

SCSS

$custom: #18316a;
$custom-light: #626895;
$custom-dark: #000000;

JSON

{
  "hex": "#18316a",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 106
  },
  "hsl": {
    "h": 221.707,
    "s": 63.077,
    "l": 25.49
  },
  "oklch": {
    "l": 0.32931,
    "c": 0.10455,
    "h": 263.8
  },
  "luminance": 0.03431
}

Semantic roles & 50–950 ramp

primary

#18316A

secondary

#A0823E

accent

#B442E6

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #18316A

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

Preview Lab → · Contrast checker → · Palette generator →