#505CB3#505CB3

#505CB3 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.0% C 0.137 H 274.6°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#505CB3
RGB	rgb(80, 92, 179)
HSL	hsl(233, 39%, 51%)
HSV	hsv(233, 55%, 70%)
CMYK	cmyk(55.3%, 48.6%, 0%, 29.8%)
CIE-LAB	lab(42.17, 21.06, -47.86)
CIE-LCH	lch(42.17, 52.29, 293.75°)
OKLab	oklab(50.95% 0.0109 -0.1365)
OKLCH	oklch(50.95% 0.137 274.6)
XYZ	xyz(15.2695, 12.6134, 44.2691)
Luminance	0.1261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#505CB3 #B3A750

analogous

#508DB3 #505CB3 #7550B3

triadic

#505CB3 #B3505C #5CB350

tetradic

#505CB3 #B3508D #B3A750 #50B375

square

#505CB3 #B3508D #B3A750 #50B375

split-complementary

#505CB3 #B37550 #8DB350

monochromatic

#29305F #3C458A #505CB3 #7B84C6 #A5ABD8

Accessibility & contrast

On white

5.96

#505CB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#505CB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #505CB3

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##505CB3	#FFFFFF	#000000	##FFFFFF
##505CB3	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3368B6

Deuteranopia (green-blind)

#2560B1

Tritanopia (blue-blind)

#1C6F7F

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #505cb3;
/* rgb */ color: rgb(80, 92, 179);
/* oklch */ color: oklch(51.0% 0.137 274.6);

Tailwind

colors: {
  custom: {
    50: '#898aca',
    500: '#505cb3',
    950: '#000000',
  },
}

SCSS

$custom: #505cb3;
$custom-light: #898aca;
$custom-dark: #000000;

JSON

{
  "hex": "#505cb3",
  "rgb": {
    "r": 80,
    "g": 92,
    "b": 179
  },
  "hsl": {
    "h": 232.727,
    "s": 39.442,
    "l": 50.784
  },
  "oklch": {
    "l": 0.50953,
    "c": 0.13696,
    "h": 274.6
  },
  "luminance": 0.12614
}

Semantic roles & 50–950 ramp

primary

#505CB3

secondary

#C5C099

accent

#C158CF

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #505CB3

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

Preview Lab → · Contrast checker → · Palette generator →