#15387F#15387F

#15387F is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.2% C 0.127 H 262.3°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#15387F
RGB	rgb(21, 56, 127)
HSL	hsl(220, 72%, 29%)
HSV	hsv(220, 83%, 50%)
CMYK	cmyk(83.5%, 55.9%, 0%, 50.2%)
CIE-LAB	lab(25.32, 15.91, -43.68)
CIE-LCH	lch(25.32, 46.48, 290.02°)
OKLab	oklab(36.17% -0.017 -0.126)
OKLCH	oklch(36.17% 0.127 262.3)
XYZ	xyz(5.5528, 4.5194, 20.6542)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15387F #7F5C15

analogous

#156D7F #15387F #27157F

triadic

#15387F #7F1538 #387F15

tetradic

#15387F #7F156D #7F5C15 #157F27

square

#15387F #7F156D #7F5C15 #157F27

split-complementary

#15387F #7F2715 #6D7F15

monochromatic

#040C1A #0C214A #15387F #1E4FB4 #316ADD

Accessibility & contrast

On white

11.03

#15387F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#15387F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15387F

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15387F	#FFFFFF	#000000	##FFFFFF
##15387F	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004181

Deuteranopia (green-blind)

#00377E

Tritanopia (blue-blind)

#004955

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #15387f;
/* rgb */ color: rgb(21, 56, 127);
/* oklch */ color: oklch(36.2% 0.127 262.3);

Tailwind

colors: {
  custom: {
    50: '#666ea5',
    500: '#15387f',
    950: '#000000',
  },
}

SCSS

$custom: #15387f;
$custom-light: #666ea5;
$custom-dark: #000000;

JSON

{
  "hex": "#15387f",
  "rgb": {
    "r": 21,
    "g": 56,
    "b": 127
  },
  "hsl": {
    "h": 220.189,
    "s": 71.622,
    "l": 29.02
  },
  "oklch": {
    "l": 0.36173,
    "c": 0.12714,
    "h": 262.3
  },
  "luminance": 0.0452
}

Semantic roles & 50–950 ramp

primary

#15387F

secondary

#B48C3C

accent

#B339EE

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #15387F

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

Preview Lab → · Contrast checker → · Palette generator →