#15237C#15237C

#15237C is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.6% C 0.150 H 268.4°. Best body text is #FFFFFF at 13.43:1 contrast (WCAG AA passes).

Color values

HEX	#15237C
RGB	rgb(21, 35, 124)
HSL	hsl(232, 71%, 28%)
HSV	hsv(232, 83%, 49%)
CMYK	cmyk(83.1%, 71.8%, 0%, 51.4%)
CIE-LAB	lab(19.29, 29.39, -51.63)
CIE-LCH	lch(19.29, 59.41, 299.65°)
OKLab	oklab(31.61% -0.0041 -0.1496)
OKLCH	oklch(31.61% 0.15 268.4)
XYZ	xyz(4.5471, 2.8162, 19.3688)
Luminance	0.0282 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15237C #7C6E15

analogous

#15567C #15237C #3A157C

triadic

#15237C #7C1523 #237C15

tetradic

#15237C #7C1556 #7C6E15 #157C3A

square

#15237C #7C1556 #7C6E15 #157C3A

split-complementary

#15237C #7C3A15 #567C15

monochromatic

#04071A #0C1448 #15237C #1E32B0 #3047DC

Accessibility & contrast

On white

13.43

#15237C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#15237C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15237C

13.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15237C	#FFFFFF	#000000	##FFFFFF
##15237C	1.00	13.43	1.56	13.43
#FFFFFF	13.43	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347F

Deuteranopia (green-blind)

#002A7A

Tritanopia (blue-blind)

#003C4C

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #15237c;
/* rgb */ color: rgb(21, 35, 124);
/* oklch */ color: oklch(31.6% 0.150 268.4);

Tailwind

colors: {
  custom: {
    50: '#675ea3',
    500: '#15237c',
    950: '#000000',
  },
}

SCSS

$custom: #15237c;
$custom-light: #675ea3;
$custom-dark: #000000;

JSON

{
  "hex": "#15237c",
  "rgb": {
    "r": 21,
    "g": 35,
    "b": 124
  },
  "hsl": {
    "h": 231.845,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.31611,
    "c": 0.14963,
    "h": 268.4
  },
  "luminance": 0.02817
}

Semantic roles & 50–950 ramp

primary

#15237C

secondary

#B1A13C

accent

#D53AEE

background

#F6F5FA

surface

#EBE9F4

border

#C6C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #15237C

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

Preview Lab → · Contrast checker → · Palette generator →