#15387E#15387E

#15387E is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.1% C 0.126 H 262.2°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#15387E
RGB	rgb(21, 56, 126)
HSL	hsl(220, 71%, 29%)
HSV	hsv(220, 83%, 49%)
CMYK	cmyk(83.3%, 55.6%, 0%, 50.6%)
CIE-LAB	lab(25.24, 15.49, -43.18)
CIE-LCH	lch(25.24, 45.87, 289.74°)
OKLab	oklab(36.09% -0.0171 -0.1245)
OKLCH	oklch(36.09% 0.126 262.2)
XYZ	xyz(5.4880, 4.4935, 20.3127)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15387E #7E5B15

analogous

#156D7E #15387E #27157E

triadic

#15387E #7E1538 #387E15

tetradic

#15387E #7E156D #7E5B15 #157E27

square

#15387E #7E156D #7E5B15 #157E27

split-complementary

#15387E #7E2715 #6D7E15

monochromatic

#040C1A #0C214A #15387E #1E4FB2 #316ADD

Accessibility & contrast

On white

11.06

#15387E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#15387E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15387E

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15387E	#FFFFFF	#000000	##FFFFFF
##15387E	1.00	11.06	1.90	11.06
#FFFFFF	11.06	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004180

Deuteranopia (green-blind)

#00377D

Tritanopia (blue-blind)

#004955

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #15387e;
/* rgb */ color: rgb(21, 56, 126);
/* oklch */ color: oklch(36.1% 0.126 262.2);

Tailwind

colors: {
  custom: {
    50: '#666ea4',
    500: '#15387e',
    950: '#000000',
  },
}

SCSS

$custom: #15387e;
$custom-light: #666ea4;
$custom-dark: #000000;

JSON

{
  "hex": "#15387e",
  "rgb": {
    "r": 21,
    "g": 56,
    "b": 126
  },
  "hsl": {
    "h": 220,
    "s": 71.429,
    "l": 28.824
  },
  "oklch": {
    "l": 0.36088,
    "c": 0.12569,
    "h": 262.2
  },
  "luminance": 0.04494
}

Semantic roles & 50–950 ramp

primary

#15387E

secondary

#B38B3C

accent

#B23AEE

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #15387E

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

Preview Lab → · Contrast checker → · Palette generator →