#15317A#15317A

#15317A is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.2% C 0.129 H 264.5°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#15317A
RGB	rgb(21, 49, 122)
HSL	hsl(223, 71%, 28%)
HSV	hsv(223, 83%, 48%)
CMYK	cmyk(82.8%, 59.8%, 0%, 52.2%)
CIE-LAB	lab(22.86, 18.82, -44.51)
CIE-LCH	lch(22.86, 48.32, 292.92°)
OKLab	oklab(34.19% -0.0124 -0.1286)
OKLCH	oklch(34.19% 0.129 264.5)
XYZ	xyz(4.9192, 3.7606, 18.8752)
Luminance	0.0376 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15317A #7A5E15

analogous

#15637A #15317A #2B157A

triadic

#15317A #7A1531 #317A15

tetradic

#15317A #7A1563 #7A5E15 #157A2B

square

#15317A #7A1563 #7A5E15 #157A2B

split-complementary

#15317A #7A2B15 #637A15

monochromatic

#040A1A #0C1C46 #15317A #1E46AE #2E5EDB

Accessibility & contrast

On white

11.98

#15317A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#15317A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15317A

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15317A	#FFFFFF	#000000	##FFFFFF
##15317A	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B7C

Deuteranopia (green-blind)

#003279

Tritanopia (blue-blind)

#004350

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #15317a;
/* rgb */ color: rgb(21, 49, 122);
/* oklch */ color: oklch(34.2% 0.129 264.5);

Tailwind

colors: {
  custom: {
    50: '#6568a1',
    500: '#15317a',
    950: '#000000',
  },
}

SCSS

$custom: #15317a;
$custom-light: #6568a1;
$custom-dark: #000000;

JSON

{
  "hex": "#15317a",
  "rgb": {
    "r": 21,
    "g": 49,
    "b": 122
  },
  "hsl": {
    "h": 223.366,
    "s": 70.629,
    "l": 28.039
  },
  "oklch": {
    "l": 0.3419,
    "c": 0.12917,
    "h": 264.5
  },
  "luminance": 0.03761
}

Semantic roles & 50–950 ramp

primary

#15317A

secondary

#AF8F3B

accent

#BC3AED

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #15317A

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

Preview Lab → · Contrast checker → · Palette generator →