#505BB4#505BB4

#505BB4 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.8% C 0.140 H 275.0°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#505BB4
RGB	rgb(80, 91, 180)
HSL	hsl(233, 40%, 51%)
HSV	hsv(233, 56%, 71%)
CMYK	cmyk(55.6%, 49.4%, 0%, 29.4%)
CIE-LAB	lab(41.97, 22.02, -48.77)
CIE-LCH	lch(41.97, 53.52, 294.30°)
OKLab	oklab(50.82% 0.0122 -0.1392)
OKLCH	oklch(50.82% 0.14 275)
XYZ	xyz(15.2849, 12.4819, 44.7750)
Luminance	0.1248 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#505BB4 #B4A950

analogous

#508DB4 #505BB4 #7750B4

triadic

#505BB4 #B4505B #5BB450

tetradic

#505BB4 #B4508D #B4A950 #50B477

square

#505BB4 #B4508D #B4A950 #50B477

split-complementary

#505BB4 #B47750 #8DB450

monochromatic

#292F60 #3C448B #505BB4 #7B83C6 #A6ABD9

Accessibility & contrast

On white

6.01

#505BB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#505BB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #505BB4

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##505BB4	#FFFFFF	#000000	##FFFFFF
##505BB4	1.00	6.01	3.50	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F67B7

Deuteranopia (green-blind)

#215FB2

Tritanopia (blue-blind)

#1B6F7F

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #505bb4;
/* rgb */ color: rgb(80, 91, 180);
/* oklch */ color: oklch(50.8% 0.140 275.0);

Tailwind

colors: {
  custom: {
    50: '#8989cb',
    500: '#505bb4',
    950: '#000000',
  },
}

SCSS

$custom: #505bb4;
$custom-light: #8989cb;
$custom-dark: #000000;

JSON

{
  "hex": "#505bb4",
  "rgb": {
    "r": 80,
    "g": 91,
    "b": 180
  },
  "hsl": {
    "h": 233.4,
    "s": 40,
    "l": 50.98
  },
  "oklch": {
    "l": 0.50819,
    "c": 0.13974,
    "h": 275
  },
  "luminance": 0.12483
}

Semantic roles & 50–950 ramp

primary

#505BB4

secondary

#C6C19A

accent

#C358D0

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #505BB4

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

Preview Lab → · Contrast checker → · Palette generator →