#18316C#18316C

#18316C is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.1% C 0.108 H 264.1°. Best body text is #FFFFFF at 12.39:1 contrast (WCAG AA passes).

Color values

HEX	#18316C
RGB	rgb(24, 49, 108)
HSL	hsl(222, 64%, 26%)
HSV	hsv(222, 78%, 42%)
CMYK	cmyk(77.8%, 54.6%, 0%, 57.6%)
CIE-LAB	lab(21.85, 13.37, -37.19)
CIE-LCH	lch(21.85, 39.52, 289.77°)
OKLab	oklab(33.1% -0.0111 -0.107)
OKLCH	oklch(33.1% 0.108 264.1)
XYZ	xyz(4.1808, 3.4731, 14.6345)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18316C #6C5318

analogous

#185B6C #18316C #29186C

triadic

#18316C #6C1831 #316C18

tetradic

#18316C #6C185B #6C5318 #186C29

square

#18316C #6C185B #6C5318 #186C29

split-complementary

#18316C #6C2918 #5B6C18

monochromatic

#060B19 #0D1A3A #18316C #23489E #2E5ED0

Accessibility & contrast

On white

12.39

#18316C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#18316C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18316C

12.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18316C	#FFFFFF	#000000	##FFFFFF
##18316C	1.00	12.39	1.69	12.39
#FFFFFF	12.39	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A386E

Deuteranopia (green-blind)

#00316B

Tritanopia (blue-blind)

#003F49

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #18316c;
/* rgb */ color: rgb(24, 49, 108);
/* oklch */ color: oklch(33.1% 0.108 264.1);

Tailwind

colors: {
  custom: {
    50: '#626897',
    500: '#18316c',
    950: '#000000',
  },
}

SCSS

$custom: #18316c;
$custom-light: #626897;
$custom-dark: #000000;

JSON

{
  "hex": "#18316c",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 108
  },
  "hsl": {
    "h": 222.143,
    "s": 63.636,
    "l": 25.882
  },
  "oklch": {
    "l": 0.33097,
    "c": 0.10758,
    "h": 264.1
  },
  "luminance": 0.03474
}

Semantic roles & 50–950 ramp

primary

#18316C

secondary

#A2843E

accent

#B541E7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #18316C

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

Preview Lab → · Contrast checker → · Palette generator →