#15316B#15316B

#15316B is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.9% C 0.107 H 262.6°. Best body text is #FFFFFF at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#15316B
RGB	rgb(21, 49, 107)
HSL	hsl(220, 67%, 25%)
HSV	hsv(220, 80%, 42%)
CMYK	cmyk(80.4%, 54.2%, 0%, 58%)
CIE-LAB	lab(21.64, 12.54, -36.88)
CIE-LCH	lch(21.64, 38.96, 288.77°)
OKLab	oklab(32.88% -0.0137 -0.1062)
OKLCH	oklch(32.88% 0.107 262.6)
XYZ	xyz(4.0605, 3.4171, 14.3526)
Luminance	0.0342 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15316B #6B4F15

analogous

#155C6B #15316B #24156B

triadic

#15316B #6B1531 #316B15

tetradic

#15316B #6B155C #6B4F15 #156B24

square

#15316B #6B155C #6B4F15 #156B24

split-complementary

#15316B #6B2415 #5C6B15

monochromatic

#050C1A #0B1A38 #15316B #1F489E #2960D1

Accessibility & contrast

On white

12.47

#15316B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#15316B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15316B

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15316B	#FFFFFF	#000000	##FFFFFF
##15316B	1.00	12.47	1.68	12.47
#FFFFFF	12.47	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B386D

Deuteranopia (green-blind)

#00306A

Tritanopia (blue-blind)

#003F49

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #15316b;
/* rgb */ color: rgb(21, 49, 107);
/* oklch */ color: oklch(32.9% 0.107 262.6);

Tailwind

colors: {
  custom: {
    50: '#616896',
    500: '#15316b',
    950: '#000000',
  },
}

SCSS

$custom: #15316b;
$custom-light: #616896;
$custom-dark: #000000;

JSON

{
  "hex": "#15316b",
  "rgb": {
    "r": 21,
    "g": 49,
    "b": 107
  },
  "hsl": {
    "h": 220.465,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.32881,
    "c": 0.10704,
    "h": 262.6
  },
  "luminance": 0.03418
}

Semantic roles & 50–950 ramp

primary

#15316B

secondary

#A2803A

accent

#B23EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #15316B

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

Preview Lab → · Contrast checker → · Palette generator →