#15317E#15317E

#15317E is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.6% C 0.135 H 264.8°. Best body text is #FFFFFF at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#15317E
RGB	rgb(21, 49, 126)
HSL	hsl(224, 71%, 29%)
HSV	hsv(224, 83%, 49%)
CMYK	cmyk(83.3%, 61.1%, 0%, 50.6%)
CIE-LAB	lab(23.21, 20.47, -46.48)
CIE-LCH	lch(23.21, 50.79, 293.77°)
OKLab	oklab(34.56% -0.0122 -0.1344)
OKLCH	oklch(34.56% 0.135 264.8)
XYZ	xyz(5.1721, 3.8618, 20.2074)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15317E #7E6215

analogous

#15667E #15317E #2E157E

triadic

#15317E #7E1531 #317E15

tetradic

#15317E #7E1566 #7E6215 #157E2E

square

#15317E #7E1566 #7E6215 #157E2E

split-complementary

#15317E #7E2E15 #667E15

monochromatic

#040A1A #0C1D4A #15317E #1E45B2 #315FDD

Accessibility & contrast

On white

11.85

#15317E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#15317E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15317E

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15317E	#FFFFFF	#000000	##FFFFFF
##15317E	1.00	11.85	1.77	11.85
#FFFFFF	11.85	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C81

Deuteranopia (green-blind)

#00337D

Tritanopia (blue-blind)

#004552

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #15317e;
/* rgb */ color: rgb(21, 49, 126);
/* oklch */ color: oklch(34.6% 0.135 264.8);

Tailwind

colors: {
  custom: {
    50: '#6668a4',
    500: '#15317e',
    950: '#000000',
  },
}

SCSS

$custom: #15317e;
$custom-light: #6668a4;
$custom-dark: #000000;

JSON

{
  "hex": "#15317e",
  "rgb": {
    "r": 21,
    "g": 49,
    "b": 126
  },
  "hsl": {
    "h": 224,
    "s": 71.429,
    "l": 28.824
  },
  "oklch": {
    "l": 0.34557,
    "c": 0.13491,
    "h": 264.8
  },
  "luminance": 0.03862
}

Semantic roles & 50–950 ramp

primary

#15317E

secondary

#B3933C

accent

#BE3AEE

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #15317E

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

Preview Lab → · Contrast checker → · Palette generator →