#15357D#15357D

#15357D is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.3% C 0.128 H 263.3°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX#15357D
RGBrgb(21, 53, 125)
HSLhsl(222, 71%, 29%)
HSVhsv(222, 83%, 49%)
CMYKcmyk(83.2%, 57.6%, 0%, 51%)
CIE-LABlab(24.28, 17.21, -44.11)
CIE-LCHlch(24.28, 47.35, 291.31°)
OKLaboklab(35.33% -0.015 -0.1273)
OKLCHoklch(35.33% 0.128 263.3)
XYZxyz(5.2827, 4.1857, 19.9276)
Luminance0.0419 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#15357D #7D5D15
analogous
#15697D #15357D #29157D
triadic
#15357D #7D1535 #357D15
tetradic
#15357D #7D1569 #7D5D15 #157D29
square
#15357D #7D1569 #7D5D15 #157D29
split-complementary
#15357D #7D2915 #697D15
monochromatic
#040B1A #0C1F49 #15357D #1E4BB1 #3065DC

Accessibility & contrast

On white

11.43
#15357D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.84
#15357D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15357D
11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##15357D#FFFFFF#000000##FFFFFF
##15357D1.0011.431.8411.43
#FFFFFF11.431.0021.001.00
#0000001.8421.001.0021.00
##FFFFFF11.431.0021.001.00

Color blindness preview

Protanopia (red-blind)
#003F7F
Deuteranopia (green-blind)
#00357C
Tritanopia (blue-blind)
#004753
Achromatopsia (no color)
#3A3A3A

Design tokens & code

CSS
--color: #15357d;
/* rgb */ color: rgb(21, 53, 125);
/* oklch */ color: oklch(35.3% 0.128 263.3);
Tailwind
colors: {
  custom: {
    50: '#666ba3',
    500: '#15357d',
    950: '#000000',
  },
}
SCSS
$custom: #15357d;
$custom-light: #666ba3;
$custom-dark: #000000;
JSON
{
  "hex": "#15357d",
  "rgb": {
    "r": 21,
    "g": 53,
    "b": 125
  },
  "hsl": {
    "h": 221.538,
    "s": 71.233,
    "l": 28.627
  },
  "oklch": {
    "l": 0.35332,
    "c": 0.12821,
    "h": 263.3
  },
  "luminance": 0.04186
}

Semantic roles & 50–950 ramp

primary
#15357D
secondary
#B28E3C
accent
#B73AEE
background
#F6F6FA
surface
#EBEBF4
border
#C6C6CE
text
#07060F
muted
#7A7A7F

Preview Lab

Preview with #15357D

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

Preview Lab → · Contrast checker → · Palette generator →

#15357D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva