#505BB7#505BB7

#505BB7 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.0% C 0.144 H 275.0°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#505BB7
RGB	rgb(80, 91, 183)
HSL	hsl(234, 42%, 52%)
HSV	hsv(234, 56%, 72%)
CMYK	cmyk(56.3%, 50.3%, 0%, 28.2%)
CIE-LAB	lab(42.16, 23.02, -50.23)
CIE-LCH	lch(42.16, 55.25, 294.62°)
OKLab	oklab(51.03% 0.0125 -0.1435)
OKLCH	oklch(51.03% 0.144 275)
XYZ	xyz(15.5938, 12.6054, 46.4019)
Luminance	0.1261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#505BB7 #B7AC50

analogous

#508FB7 #505BB7 #7950B7

triadic

#505BB7 #B7505B #5BB750

tetradic

#505BB7 #B7508F #B7AC50 #50B779

square

#505BB7 #B7508F #B7AC50 #50B779

split-complementary

#505BB7 #B77950 #8FB750

monochromatic

#292F64 #3B448F #505BB7 #7B84C9 #A7ACDB

Accessibility & contrast

On white

5.96

#505BB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#505BB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #505BB7

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##505BB7	#FFFFFF	#000000	##FFFFFF
##505BB7	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)

#2C68BA

Deuteranopia (green-blind)

#1C5FB5

Tritanopia (blue-blind)

#167080

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #505bb7;
/* rgb */ color: rgb(80, 91, 183);
/* oklch */ color: oklch(51.0% 0.144 275.0);

Tailwind

colors: {
  custom: {
    50: '#8989cd',
    500: '#505bb7',
    950: '#000000',
  },
}

SCSS

$custom: #505bb7;
$custom-light: #8989cd;
$custom-dark: #000000;

JSON

{
  "hex": "#505bb7",
  "rgb": {
    "r": 80,
    "g": 91,
    "b": 183
  },
  "hsl": {
    "h": 233.592,
    "s": 41.7,
    "l": 51.569
  },
  "oklch": {
    "l": 0.51025,
    "c": 0.14401,
    "h": 275
  },
  "luminance": 0.12607
}

Semantic roles & 50–950 ramp

primary

#505BB7

secondary

#C8C39B

accent

#C456D2

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #505BB7

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

Preview Lab → · Contrast checker → · Palette generator →