#505BB3#505BB3

#505BB3 is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.8% C 0.138 H 275.0°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#505BB3
RGB	rgb(80, 91, 179)
HSL	hsl(233, 39%, 51%)
HSV	hsv(233, 55%, 70%)
CMYK	cmyk(55.3%, 49.2%, 0%, 29.8%)
CIE-LAB	lab(41.91, 21.69, -48.29)
CIE-LCH	lch(41.91, 52.94, 294.19°)
OKLab	oklab(50.75% 0.0121 -0.1378)
OKLCH	oklch(50.75% 0.138 275)
XYZ	xyz(15.1834, 12.4413, 44.2404)
Luminance	0.1244 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#505BB3 #B3A850

analogous

#508CB3 #505BB3 #7650B3

triadic

#505BB3 #B3505B #5BB350

tetradic

#505BB3 #B3508C #B3A850 #50B376

square

#505BB3 #B3508C #B3A850 #50B376

split-complementary

#505BB3 #B37650 #8CB350

monochromatic

#292F5F #3C458A #505BB3 #7B83C6 #A5ABD8

Accessibility & contrast

On white

6.02

#505BB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#505BB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #505BB3

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##505BB3	#FFFFFF	#000000	##FFFFFF
##505BB3	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3067B6

Deuteranopia (green-blind)

#235FB1

Tritanopia (blue-blind)

#1D6F7E

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #505bb3;
/* rgb */ color: rgb(80, 91, 179);
/* oklch */ color: oklch(50.8% 0.138 275.0);

Tailwind

colors: {
  custom: {
    50: '#8989ca',
    500: '#505bb3',
    950: '#000000',
  },
}

SCSS

$custom: #505bb3;
$custom-light: #8989ca;
$custom-dark: #000000;

JSON

{
  "hex": "#505bb3",
  "rgb": {
    "r": 80,
    "g": 91,
    "b": 179
  },
  "hsl": {
    "h": 233.333,
    "s": 39.442,
    "l": 50.784
  },
  "oklch": {
    "l": 0.50752,
    "c": 0.13831,
    "h": 275
  },
  "luminance": 0.12442
}

Semantic roles & 50–950 ramp

primary

#505BB3

secondary

#C5C099

accent

#C258CF

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #505BB3

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

Preview Lab → · Contrast checker → · Palette generator →