#15377F#15377F

#15377F is a dark, vivid blue. Relative luminance 0.044; OKLCH L 35.9% C 0.128 H 262.7°. Best body text is #FFFFFF at 11.14:1 contrast (WCAG AA passes).

Color values

HEX#15377F
RGBrgb(21, 55, 127)
HSLhsl(221, 72%, 29%)
HSVhsv(221, 83%, 50%)
CMYKcmyk(83.5%, 56.7%, 0%, 50.2%)
CIE-LABlab(25.02, 16.62, -44.15)
CIE-LCHlch(25.02, 47.18, 290.63°)
OKLaboklab(35.95% -0.0163 -0.1274)
OKLCHoklch(35.95% 0.128 262.7)
XYZxyz(5.5048, 4.4235, 20.6382)
Luminance0.0442 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#15377F #7F5D15
analogous
#156C7F #15377F #28157F
triadic
#15377F #7F1537 #377F15
tetradic
#15377F #7F156C #7F5D15 #157F28
square
#15377F #7F156C #7F5D15 #157F28
split-complementary
#15377F #7F2815 #6C7F15
monochromatic
#040B1A #0C204A #15377F #1E4EB4 #3168DD

Accessibility & contrast

On white

11.14
#15377F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.88
#15377F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15377F
11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##15377F#FFFFFF#000000##FFFFFF
##15377F1.0011.141.8811.14
#FFFFFF11.141.0021.001.00
#0000001.8821.001.0021.00
##FFFFFF11.141.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004082
Deuteranopia (green-blind)
#00377E
Tritanopia (blue-blind)
#004955
Achromatopsia (no color)
#3B3B3B

Design tokens & code

CSS
--color: #15377f;
/* rgb */ color: rgb(21, 55, 127);
/* oklch */ color: oklch(35.9% 0.128 262.7);
Tailwind
colors: {
  custom: {
    50: '#666da5',
    500: '#15377f',
    950: '#000000',
  },
}
SCSS
$custom: #15377f;
$custom-light: #666da5;
$custom-dark: #000000;
JSON
{
  "hex": "#15377f",
  "rgb": {
    "r": 21,
    "g": 55,
    "b": 127
  },
  "hsl": {
    "h": 220.755,
    "s": 71.622,
    "l": 29.02
  },
  "oklch": {
    "l": 0.3595,
    "c": 0.12846,
    "h": 262.7
  },
  "luminance": 0.04424
}

Semantic roles & 50–950 ramp

primary
#15377F
secondary
#B48D3C
accent
#B439EE
background
#F6F6FA
surface
#EBEBF4
border
#C6C6CE
text
#07070F
muted
#7A7A7F

Preview Lab

Preview with #15377F

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

Preview Lab → · Contrast checker → · Palette generator →

#15377F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva