#15316C#15316C

#15316C is a dark, moderate blue. Relative luminance 0.034; OKLCH L 33.0% C 0.109 H 262.8°. Best body text is #FFFFFF at 12.44:1 contrast (WCAG AA passes).

Color values

HEX	#15316C
RGB	rgb(21, 49, 108)
HSL	hsl(221, 67%, 25%)
HSV	hsv(221, 81%, 42%)
CMYK	cmyk(80.6%, 54.6%, 0%, 57.6%)
CIE-LAB	lab(21.72, 12.96, -37.41)
CIE-LCH	lch(21.72, 39.59, 289.11°)
OKLab	oklab(32.97% -0.0136 -0.1077)
OKLCH	oklch(32.97% 0.109 262.8)
XYZ	xyz(4.1134, 3.4383, 14.6313)
Luminance	0.0344 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15316C #6C5015

analogous

#155C6C #15316C #25156C

triadic

#15316C #6C1531 #316C15

tetradic

#15316C #6C155C #6C5015 #156C25

square

#15316C #6C155C #6C5015 #156C25

split-complementary

#15316C #6C2515 #5C6C15

monochromatic

#050C1A #0B1A39 #15316C #1F489F #295FD2

Accessibility & contrast

On white

12.44

#15316C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#15316C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15316C

12.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15316C	#FFFFFF	#000000	##FFFFFF
##15316C	1.00	12.44	1.69	12.44
#FFFFFF	12.44	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09386E

Deuteranopia (green-blind)

#00306B

Tritanopia (blue-blind)

#003F49

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #15316c;
/* rgb */ color: rgb(21, 49, 108);
/* oklch */ color: oklch(33.0% 0.109 262.8);

Tailwind

colors: {
  custom: {
    50: '#616897',
    500: '#15316c',
    950: '#000000',
  },
}

SCSS

$custom: #15316c;
$custom-light: #616897;
$custom-dark: #000000;

JSON

{
  "hex": "#15316c",
  "rgb": {
    "r": 21,
    "g": 49,
    "b": 108
  },
  "hsl": {
    "h": 220.69,
    "s": 67.442,
    "l": 25.294
  },
  "oklch": {
    "l": 0.32965,
    "c": 0.10854,
    "h": 262.8
  },
  "luminance": 0.03439
}

Semantic roles & 50–950 ramp

primary

#15316C

secondary

#A3813A

accent

#B33DEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #15316C

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

Preview Lab → · Contrast checker → · Palette generator →