#505BB9#505BB9

#505BB9 is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.2% C 0.147 H 274.9°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#505BB9
RGB	rgb(80, 91, 185)
HSL	hsl(234, 43%, 52%)
HSV	hsv(234, 57%, 73%)
CMYK	cmyk(56.8%, 50.8%, 0%, 27.5%)
CIE-LAB	lab(42.29, 23.69, -51.19)
CIE-LCH	lch(42.29, 56.40, 294.83°)
OKLab	oklab(51.16% 0.0127 -0.1463)
OKLCH	oklch(51.16% 0.147 274.9)
XYZ	xyz(15.8035, 12.6893, 47.5060)
Luminance	0.1269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#505BB9 #B9AE50

analogous

#5090B9 #505BB9 #7A50B9

triadic

#505BB9 #B9505B #5BB950

tetradic

#505BB9 #B95090 #B9AE50 #50B97A

square

#505BB9 #B95090 #B9AE50 #50B97A

split-complementary

#505BB9 #B97A50 #90B950

monochromatic

#292F66 #3A4392 #505BB9 #7C84CA #A7ADDC

Accessibility & contrast

On white

5.94

#505BB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#505BB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #505BB9

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##505BB9	#FFFFFF	#000000	##FFFFFF
##505BB9	1.00	5.94	3.54	5.94
#FFFFFF	5.94	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A68BC

Deuteranopia (green-blind)

#1860B7

Tritanopia (blue-blind)

#127081

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #505bb9;
/* rgb */ color: rgb(80, 91, 185);
/* oklch */ color: oklch(51.2% 0.147 274.9);

Tailwind

colors: {
  custom: {
    50: '#8a89cf',
    500: '#505bb9',
    950: '#000000',
  },
}

SCSS

$custom: #505bb9;
$custom-light: #8a89cf;
$custom-dark: #000000;

JSON

{
  "hex": "#505bb9",
  "rgb": {
    "r": 80,
    "g": 91,
    "b": 185
  },
  "hsl": {
    "h": 233.714,
    "s": 42.857,
    "l": 51.961
  },
  "oklch": {
    "l": 0.51163,
    "c": 0.14685,
    "h": 274.9
  },
  "luminance": 0.1269
}

Semantic roles & 50–950 ramp

primary

#505BB9

secondary

#C9C59B

accent

#C555D3

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #505BB9

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

Preview Lab → · Contrast checker → · Palette generator →