#505CB8#505CB8

#505CB8 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.3% C 0.144 H 274.6°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#505CB8
RGB	rgb(80, 92, 184)
HSL	hsl(233, 42%, 52%)
HSV	hsv(233, 57%, 72%)
CMYK	cmyk(56.5%, 50%, 0%, 27.8%)
CIE-LAB	lab(42.49, 22.72, -50.29)
CIE-LCH	lch(42.49, 55.18, 294.31°)
OKLab	oklab(51.29% 0.0115 -0.1436)
OKLCH	oklch(51.29% 0.144 274.6)
XYZ	xyz(15.7843, 12.8193, 46.9807)
Luminance	0.1282 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#505CB8 #B8AC50

analogous

#5090B8 #505CB8 #7850B8

triadic

#505CB8 #B8505C #5CB850

tetradic

#505CB8 #B85090 #B8AC50 #50B878

square

#505CB8 #B85090 #B8AC50 #50B878

split-complementary

#505CB8 #B87850 #90B850

monochromatic

#293065 #3B4490 #505CB8 #7C85CA #A7ADDB

Accessibility & contrast

On white

5.89

#505CB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#505CB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #505CB8

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##505CB8	#FFFFFF	#000000	##FFFFFF
##505CB8	1.00	5.89	3.56	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D69BB

Deuteranopia (green-blind)

#1D60B6

Tritanopia (blue-blind)

#147181

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #505cb8;
/* rgb */ color: rgb(80, 92, 184);
/* oklch */ color: oklch(51.3% 0.144 274.6);

Tailwind

colors: {
  custom: {
    50: '#898ace',
    500: '#505cb8',
    950: '#000000',
  },
}

SCSS

$custom: #505cb8;
$custom-light: #898ace;
$custom-dark: #000000;

JSON

{
  "hex": "#505cb8",
  "rgb": {
    "r": 80,
    "g": 92,
    "b": 184
  },
  "hsl": {
    "h": 233.077,
    "s": 42.276,
    "l": 51.765
  },
  "oklch": {
    "l": 0.51292,
    "c": 0.1441,
    "h": 274.6
  },
  "luminance": 0.1282
}

Semantic roles & 50–950 ramp

primary

#505CB8

secondary

#C9C39B

accent

#C456D2

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #505CB8

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

Preview Lab → · Contrast checker → · Palette generator →