#18317C#18317C

#18317C is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.5% C 0.131 H 265.7°. Best body text is #FFFFFF at 11.87:1 contrast (WCAG AA passes).

Color values

HEX	#18317C
RGB	rgb(24, 49, 124)
HSL	hsl(225, 68%, 29%)
HSV	hsv(225, 81%, 49%)
CMYK	cmyk(80.6%, 60.5%, 0%, 51.4%)
CIE-LAB	lab(23.15, 19.97, -45.30)
CIE-LCH	lch(23.15, 49.50, 293.79°)
OKLab	oklab(34.49% -0.0098 -0.1308)
OKLCH	oklch(34.49% 0.131 265.7)
XYZ	xyz(5.1118, 3.8455, 19.5377)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18317C #7C6318

analogous

#18637C #18317C #31187C

triadic

#18317C #7C1831 #317C18

tetradic

#18317C #7C1863 #7C6318 #187C31

square

#18317C #7C1863 #7C6318 #187C31

split-complementary

#18317C #7C3118 #637C18

monochromatic

#050A1A #0E1D49 #18317C #2245AF #365FD8

Accessibility & contrast

On white

11.87

#18317C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#18317C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18317C

11.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18317C	#FFFFFF	#000000	##FFFFFF
##18317C	1.00	11.87	1.77	11.87
#FFFFFF	11.87	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C7F

Deuteranopia (green-blind)

#00337B

Tritanopia (blue-blind)

#004451

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #18317c;
/* rgb */ color: rgb(24, 49, 124);
/* oklch */ color: oklch(34.5% 0.131 265.7);

Tailwind

colors: {
  custom: {
    50: '#6668a3',
    500: '#18317c',
    950: '#000000',
  },
}

SCSS

$custom: #18317c;
$custom-light: #6668a3;
$custom-dark: #000000;

JSON

{
  "hex": "#18317c",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 124
  },
  "hsl": {
    "h": 225,
    "s": 67.568,
    "l": 29.02
  },
  "oklch": {
    "l": 0.34494,
    "c": 0.13121,
    "h": 265.7
  },
  "luminance": 0.03846
}

Semantic roles & 50–950 ramp

primary

#18317C

secondary

#B1943F

accent

#BF3DEA

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #18317C

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

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