#15317C#15317C

#15317C is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.4% C 0.132 H 264.7°. Best body text is #FFFFFF at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#15317C
RGB	rgb(21, 49, 124)
HSL	hsl(224, 71%, 28%)
HSV	hsv(224, 83%, 49%)
CMYK	cmyk(83.1%, 60.5%, 0%, 51.4%)
CIE-LAB	lab(23.04, 19.64, -45.50)
CIE-LCH	lch(23.04, 49.56, 293.35°)
OKLab	oklab(34.37% -0.0123 -0.1315)
OKLCH	oklch(34.37% 0.132 264.7)
XYZ	xyz(5.0444, 3.8107, 19.5346)
Luminance	0.0381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15317C #7C6015

analogous

#15647C #15317C #2C157C

triadic

#15317C #7C1531 #317C15

tetradic

#15317C #7C1564 #7C6015 #157C2C

square

#15317C #7C1564 #7C6015 #157C2C

split-complementary

#15317C #7C2C15 #647C15

monochromatic

#040A1A #0C1C48 #15317C #1E46B0 #305EDC

Accessibility & contrast

On white

11.92

#15317C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#15317C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15317C

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15317C	#FFFFFF	#000000	##FFFFFF
##15317C	1.00	11.92	1.76	11.92
#FFFFFF	11.92	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C7F

Deuteranopia (green-blind)

#00327B

Tritanopia (blue-blind)

#004451

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #15317c;
/* rgb */ color: rgb(21, 49, 124);
/* oklch */ color: oklch(34.4% 0.132 264.7);

Tailwind

colors: {
  custom: {
    50: '#6668a3',
    500: '#15317c',
    950: '#000000',
  },
}

SCSS

$custom: #15317c;
$custom-light: #6668a3;
$custom-dark: #000000;

JSON

{
  "hex": "#15317c",
  "rgb": {
    "r": 21,
    "g": 49,
    "b": 124
  },
  "hsl": {
    "h": 223.689,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.34373,
    "c": 0.13205,
    "h": 264.7
  },
  "luminance": 0.03811
}

Semantic roles & 50–950 ramp

primary

#15317C

secondary

#B1913C

accent

#BD3AEE

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #15317C

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

Preview Lab → · Contrast checker → · Palette generator →