#505BB0#505BB0

#505BB0 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.5% C 0.134 H 275.0°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#505BB0
RGB	rgb(80, 91, 176)
HSL	hsl(233, 38%, 50%)
HSV	hsv(233, 55%, 69%)
CMYK	cmyk(54.5%, 48.3%, 0%, 31%)
CIE-LAB	lab(41.72, 20.70, -46.83)
CIE-LCH	lch(41.72, 51.20, 293.85°)
OKLab	oklab(50.55% 0.0117 -0.1335)
OKLCH	oklch(50.55% 0.134 275)
XYZ	xyz(14.8833, 12.3212, 42.6598)
Luminance	0.1232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#505BB0 #B0A550

analogous

#508BB0 #505BB0 #7550B0

triadic

#505BB0 #B0505B #5BB050

tetradic

#505BB0 #B0508B #B0A550 #50B075

square

#505BB0 #B0508B #B0A550 #50B075

split-complementary

#505BB0 #B07550 #8BB050

monochromatic

#2A2F5C #3D4586 #505BB0 #7A83C3 #A4AAD6

Accessibility & contrast

On white

6.06

#505BB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#505BB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #505BB0

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##505BB0	#FFFFFF	#000000	##FFFFFF
##505BB0	1.00	6.06	3.46	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3367B3

Deuteranopia (green-blind)

#275FAE

Tritanopia (blue-blind)

#216E7D

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #505bb0;
/* rgb */ color: rgb(80, 91, 176);
/* oklch */ color: oklch(50.5% 0.134 275.0);

Tailwind

colors: {
  custom: {
    50: '#8889c8',
    500: '#505bb0',
    950: '#000000',
  },
}

SCSS

$custom: #505bb0;
$custom-light: #8889c8;
$custom-dark: #000000;

JSON

{
  "hex": "#505bb0",
  "rgb": {
    "r": 80,
    "g": 91,
    "b": 176
  },
  "hsl": {
    "h": 233.125,
    "s": 37.795,
    "l": 50.196
  },
  "oklch": {
    "l": 0.5055,
    "c": 0.13399,
    "h": 275
  },
  "luminance": 0.12322
}

Semantic roles & 50–950 ramp

primary

#505BB0

secondary

#C3BE98

accent

#C05ACE

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #505BB0

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

Preview Lab → · Contrast checker → · Palette generator →