#15387C#15387C

#15387C is a dark, vivid blue. Relative luminance 0.044; OKLCH L 35.9% C 0.123 H 261.9°. Best body text is #FFFFFF at 11.12:1 contrast (WCAG AA passes).

Color values

HEX	#15387C
RGB	rgb(21, 56, 124)
HSL	hsl(220, 71%, 28%)
HSV	hsv(220, 83%, 49%)
CMYK	cmyk(83.1%, 54.8%, 0%, 51.4%)
CIE-LAB	lab(25.08, 14.66, -42.17)
CIE-LCH	lch(25.08, 44.65, 289.17°)
OKLab	oklab(35.92% -0.0173 -0.1216)
OKLCH	oklch(35.92% 0.123 261.9)
XYZ	xyz(5.3602, 4.4424, 19.6398)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15387C #7C5915

analogous

#156B7C #15387C #26157C

triadic

#15387C #7C1538 #387C15

tetradic

#15387C #7C156B #7C5915 #157C26

square

#15387C #7C156B #7C5915 #157C26

split-complementary

#15387C #7C2615 #6B7C15

monochromatic

#040C1A #0C2048 #15387C #1E50B0 #306ADC

Accessibility & contrast

On white

11.12

#15387C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#15387C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15387C

11.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15387C	#FFFFFF	#000000	##FFFFFF
##15387C	1.00	11.12	1.89	11.12
#FFFFFF	11.12	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05407E

Deuteranopia (green-blind)

#00377B

Tritanopia (blue-blind)

#004954

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #15387c;
/* rgb */ color: rgb(21, 56, 124);
/* oklch */ color: oklch(35.9% 0.123 261.9);

Tailwind

colors: {
  custom: {
    50: '#656ea2',
    500: '#15387c',
    950: '#000000',
  },
}

SCSS

$custom: #15387c;
$custom-light: #656ea2;
$custom-dark: #000000;

JSON

{
  "hex": "#15387c",
  "rgb": {
    "r": 21,
    "g": 56,
    "b": 124
  },
  "hsl": {
    "h": 219.612,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.35919,
    "c": 0.12279,
    "h": 261.9
  },
  "luminance": 0.04443
}

Semantic roles & 50–950 ramp

primary

#15387C

secondary

#B1893C

accent

#B13AEE

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #15387C

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

Preview Lab → · Contrast checker → · Palette generator →