#505BB8#505BB8

#505BB8 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.1% C 0.145 H 275.0°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#505BB8
RGB	rgb(80, 91, 184)
HSL	hsl(234, 42%, 52%)
HSV	hsv(234, 57%, 72%)
CMYK	cmyk(56.5%, 50.5%, 0%, 27.8%)
CIE-LAB	lab(42.23, 23.35, -50.71)
CIE-LCH	lch(42.23, 55.83, 294.73°)
OKLab	oklab(51.09% 0.0126 -0.1449)
OKLCH	oklch(51.09% 0.145 275)
XYZ	xyz(15.6983, 12.6472, 46.9520)
Luminance	0.1265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#505BB8 #B8AD50

analogous

#508FB8 #505BB8 #7950B8

triadic

#505BB8 #B8505B #5BB850

tetradic

#505BB8 #B8508F #B8AD50 #50B879

square

#505BB8 #B8508F #B8AD50 #50B879

split-complementary

#505BB8 #B87950 #8FB850

monochromatic

#292F65 #3B4490 #505BB8 #7C84CA #A7ADDB

Accessibility & contrast

On white

5.95

#505BB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#505BB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #505BB8

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##505BB8	#FFFFFF	#000000	##FFFFFF
##505BB8	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B68BB

Deuteranopia (green-blind)

#1A5FB6

Tritanopia (blue-blind)

#147081

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #505bb8;
/* rgb */ color: rgb(80, 91, 184);
/* oklch */ color: oklch(51.1% 0.145 275.0);

Tailwind

colors: {
  custom: {
    50: '#8989ce',
    500: '#505bb8',
    950: '#000000',
  },
}

SCSS

$custom: #505bb8;
$custom-light: #8989ce;
$custom-dark: #000000;

JSON

{
  "hex": "#505bb8",
  "rgb": {
    "r": 80,
    "g": 91,
    "b": 184
  },
  "hsl": {
    "h": 233.654,
    "s": 42.276,
    "l": 51.765
  },
  "oklch": {
    "l": 0.51094,
    "c": 0.14543,
    "h": 275
  },
  "luminance": 0.12648
}

Semantic roles & 50–950 ramp

primary

#505BB8

secondary

#C9C49B

accent

#C556D2

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #505BB8

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

Preview Lab → · Contrast checker → · Palette generator →