#15387D#15387D

#15387D is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.0% C 0.124 H 262.0°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#15387D
RGB	rgb(21, 56, 125)
HSL	hsl(220, 71%, 29%)
HSV	hsv(220, 83%, 49%)
CMYK	cmyk(83.2%, 55.2%, 0%, 51%)
CIE-LAB	lab(25.16, 15.08, -42.67)
CIE-LCH	lch(25.16, 45.26, 289.46°)
OKLab	oklab(36% -0.0172 -0.123)
OKLCH	oklch(36% 0.124 262)
XYZ	xyz(5.4238, 4.4678, 19.9746)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15387D #7D5A15

analogous

#156C7D #15387D #26157D

triadic

#15387D #7D1538 #387D15

tetradic

#15387D #7D156C #7D5A15 #157D26

square

#15387D #7D156C #7D5A15 #157D26

split-complementary

#15387D #7D2615 #6C7D15

monochromatic

#040C1A #0C2149 #15387D #1E4FB1 #306ADC

Accessibility & contrast

On white

11.09

#15387D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#15387D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15387D

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15387D	#FFFFFF	#000000	##FFFFFF
##15387D	1.00	11.09	1.89	11.09
#FFFFFF	11.09	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02417F

Deuteranopia (green-blind)

#00377C

Tritanopia (blue-blind)

#004954

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #15387d;
/* rgb */ color: rgb(21, 56, 125);
/* oklch */ color: oklch(36.0% 0.124 262.0);

Tailwind

colors: {
  custom: {
    50: '#656ea3',
    500: '#15387d',
    950: '#000000',
  },
}

SCSS

$custom: #15387d;
$custom-light: #656ea3;
$custom-dark: #000000;

JSON

{
  "hex": "#15387d",
  "rgb": {
    "r": 21,
    "g": 56,
    "b": 125
  },
  "hsl": {
    "h": 219.808,
    "s": 71.233,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36003,
    "c": 0.12424,
    "h": 262
  },
  "luminance": 0.04468
}

Semantic roles & 50–950 ramp

primary

#15387D

secondary

#B28A3C

accent

#B13AEE

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #15387D

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

Preview Lab → · Contrast checker → · Palette generator →