#15315D#15315D

#15315D is a dark, moderate blue. Relative luminance 0.031; OKLCH L 31.8% C 0.086 H 259.2°. Best body text is #FFFFFF at 12.89:1 contrast (WCAG AA passes).

Color values

HEX	#15315D
RGB	rgb(21, 49, 93)
HSL	hsl(217, 63%, 22%)
HSV	hsv(217, 77%, 36%)
CMYK	cmyk(77.4%, 47.3%, 0%, 63.5%)
CIE-LAB	lab(20.62, 6.62, -29.39)
CIE-LCH	lch(20.62, 30.13, 282.70°)
OKLab	oklab(31.77% -0.0161 -0.0841)
OKLCH	oklch(31.77% 0.086 259.2)
XYZ	xyz(3.3826, 3.1460, 10.7828)
Luminance	0.0315 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15315D #5D4115

analogous

#15555D #15315D #1D155D

triadic

#15315D #5D1531 #315D15

tetradic

#15315D #5D1555 #5D4115 #155D1D

square

#15315D #5D1555 #5D4115 #155D1D

split-complementary

#15315D #5D1D15 #555D15

monochromatic

#060D19 #0A172B #15315D #204B8F #2C66C1

Accessibility & contrast

On white

12.89

#15315D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#15315D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15315D

12.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15315D	#FFFFFF	#000000	##FFFFFF
##15315D	1.00	12.89	1.63	12.89
#FFFFFF	12.89	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B355F

Deuteranopia (green-blind)

#0E2F5C

Tritanopia (blue-blind)

#003B42

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #15315d;
/* rgb */ color: rgb(21, 49, 93);
/* oklch */ color: oklch(31.8% 0.086 259.2);

Tailwind

colors: {
  custom: {
    50: '#5d688b',
    500: '#15315d',
    950: '#000000',
  },
}

SCSS

$custom: #15315d;
$custom-light: #5d688b;
$custom-dark: #000000;

JSON

{
  "hex": "#15315d",
  "rgb": {
    "r": 21,
    "g": 49,
    "b": 93
  },
  "hsl": {
    "h": 216.667,
    "s": 63.158,
    "l": 22.353
  },
  "oklch": {
    "l": 0.31769,
    "c": 0.08564,
    "h": 259.2
  },
  "luminance": 0.03146
}

Semantic roles & 50–950 ramp

primary

#15315D

secondary

#947139

accent

#A642E6

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #15315D

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

Preview Lab → · Contrast checker → · Palette generator →