#18315C#18315C

#18315C is a dark, moderate blue. Relative luminance 0.032; OKLCH L 31.8% C 0.083 H 260.5°. Best body text is #FFFFFF at 12.86:1 contrast (WCAG AA passes).

Color values

HEX	#18315C
RGB	rgb(24, 49, 92)
HSL	hsl(218, 59%, 23%)
HSV	hsv(218, 74%, 36%)
CMYK	cmyk(73.9%, 46.7%, 0%, 63.9%)
CIE-LAB	lab(20.69, 6.72, -28.62)
CIE-LCH	lch(20.69, 29.40, 283.21°)
OKLab	oklab(31.84% -0.0137 -0.0818)
OKLCH	oklch(31.84% 0.083 260.5)
XYZ	xyz(3.4061, 3.1632, 10.5542)
Luminance	0.0316 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18315C #5C4318

analogous

#18535C #18315C #21185C

triadic

#18315C #5C1831 #315C18

tetradic

#18315C #5C1853 #5C4318 #185C21

square

#18315C #5C1853 #5C4318 #185C21

split-complementary

#18315C #5C2118 #535C18

monochromatic

#060D18 #0B172B #18315C #254B8D #3165BD

Accessibility & contrast

On white

12.86

#18315C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#18315C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18315C

12.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18315C	#FFFFFF	#000000	##FFFFFF
##18315C	1.00	12.86	1.63	12.86
#FFFFFF	12.86	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C355E

Deuteranopia (green-blind)

#102F5B

Tritanopia (blue-blind)

#003B42

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #18315c;
/* rgb */ color: rgb(24, 49, 92);
/* oklch */ color: oklch(31.8% 0.083 260.5);

Tailwind

colors: {
  custom: {
    50: '#5e688a',
    500: '#18315c',
    950: '#000000',
  },
}

SCSS

$custom: #18315c;
$custom-light: #5e688a;
$custom-dark: #000000;

JSON

{
  "hex": "#18315c",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 92
  },
  "hsl": {
    "h": 217.941,
    "s": 58.621,
    "l": 22.745
  },
  "oklch": {
    "l": 0.31836,
    "c": 0.08293,
    "h": 260.5
  },
  "luminance": 0.03164
}

Semantic roles & 50–950 ramp

primary

#18315C

secondary

#93733D

accent

#A946E2

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #18315C

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

Preview Lab → · Contrast checker → · Palette generator →