#15317D#15317D

#15317D is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.5% C 0.133 H 264.7°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#15317D
RGB	rgb(21, 49, 125)
HSL	hsl(224, 71%, 29%)
HSV	hsv(224, 83%, 49%)
CMYK	cmyk(83.2%, 60.8%, 0%, 51%)
CIE-LAB	lab(23.12, 20.06, -45.99)
CIE-LCH	lch(23.12, 50.17, 293.56°)
OKLab	oklab(34.46% -0.0122 -0.1329)
OKLCH	oklch(34.46% 0.133 264.7)
XYZ	xyz(5.1079, 3.8361, 19.8693)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15317D #7D6115

analogous

#15657D #15317D #2D157D

triadic

#15317D #7D1531 #317D15

tetradic

#15317D #7D1565 #7D6115 #157D2D

square

#15317D #7D1565 #7D6115 #157D2D

split-complementary

#15317D #7D2D15 #657D15

monochromatic

#040A1A #0C1C49 #15317D #1E46B1 #305EDC

Accessibility & contrast

On white

11.88

#15317D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#15317D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15317D

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15317D	#FFFFFF	#000000	##FFFFFF
##15317D	1.00	11.88	1.77	11.88
#FFFFFF	11.88	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C80

Deuteranopia (green-blind)

#00327C

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #15317d;
/* rgb */ color: rgb(21, 49, 125);
/* oklch */ color: oklch(34.5% 0.133 264.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#15317d",
  "rgb": {
    "r": 21,
    "g": 49,
    "b": 125
  },
  "hsl": {
    "h": 223.846,
    "s": 71.233,
    "l": 28.627
  },
  "oklch": {
    "l": 0.34464,
    "c": 0.13348,
    "h": 264.7
  },
  "luminance": 0.03837
}

Semantic roles & 50–950 ramp

primary

#15317D

secondary

#B2923C

accent

#BD3AEE

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #15317D

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

Preview Lab → · Contrast checker → · Palette generator →