#15315E#15315E

#15315E is a dark, moderate blue. Relative luminance 0.032; OKLCH L 31.8% C 0.087 H 259.5°. Best body text is #FFFFFF at 12.86:1 contrast (WCAG AA passes).

Color values

HEX	#15315E
RGB	rgb(21, 49, 94)
HSL	hsl(217, 63%, 23%)
HSV	hsv(217, 78%, 37%)
CMYK	cmyk(77.7%, 47.9%, 0%, 63.1%)
CIE-LAB	lab(20.69, 7.05, -29.94)
CIE-LCH	lch(20.69, 30.76, 283.24°)
OKLab	oklab(31.84% -0.0159 -0.0857)
OKLCH	oklch(31.84% 0.087 259.5)
XYZ	xyz(3.4272, 3.1638, 11.0176)
Luminance	0.0316 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15315E #5E4215

analogous

#15565E #15315E #1D155E

triadic

#15315E #5E1531 #315E15

tetradic

#15315E #5E1556 #5E4215 #155E1D

square

#15315E #5E1556 #5E4215 #155E1D

split-complementary

#15315E #5E1D15 #565E15

monochromatic

#060D19 #0A172C #15315E #204B90 #2B65C2

Accessibility & contrast

On white

12.86

#15315E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#15315E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15315E

12.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15315E	#FFFFFF	#000000	##FFFFFF
##15315E	1.00	12.86	1.63	12.86
#FFFFFF	12.86	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A3560

Deuteranopia (green-blind)

#0C2F5D

Tritanopia (blue-blind)

#003C42

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #15315e;
/* rgb */ color: rgb(21, 49, 94);
/* oklch */ color: oklch(31.8% 0.087 259.5);

Tailwind

colors: {
  custom: {
    50: '#5d688c',
    500: '#15315e',
    950: '#000000',
  },
}

SCSS

$custom: #15315e;
$custom-light: #5d688c;
$custom-dark: #000000;

JSON

{
  "hex": "#15315e",
  "rgb": {
    "r": 21,
    "g": 49,
    "b": 94
  },
  "hsl": {
    "h": 216.986,
    "s": 63.478,
    "l": 22.549
  },
  "oklch": {
    "l": 0.31844,
    "c": 0.08719,
    "h": 259.5
  },
  "luminance": 0.03164
}

Semantic roles & 50–950 ramp

primary

#15315E

secondary

#957239

accent

#A741E7

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #15315E

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

Preview Lab → · Contrast checker → · Palette generator →