#505CBB#505CBB

#505CBB is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.5% C 0.148 H 274.5°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#505CBB
RGB	rgb(80, 92, 187)
HSL	hsl(233, 44%, 52%)
HSV	hsv(233, 57%, 73%)
CMYK	cmyk(57.2%, 50.8%, 0%, 26.7%)
CIE-LAB	lab(42.68, 23.72, -51.73)
CIE-LCH	lch(42.68, 56.91, 294.64°)
OKLab	oklab(51.5% 0.0118 -0.1479)
OKLCH	oklch(51.5% 0.148 274.5)
XYZ	xyz(16.1021, 12.9465, 48.6545)
Luminance	0.1295 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#505CBB #BBAF50

analogous

#5092BB #505CBB #7A50BB

triadic

#505CBB #BB505C #5CBB50

tetradic

#505CBB #BB5092 #BBAF50 #50BB7A

square

#505CBB #BB5092 #BBAF50 #50BB7A

split-complementary

#505CBB #BB7A50 #92BB50

monochromatic

#283068 #3A4494 #505CBB #7C85CC #A8AEDD

Accessibility & contrast

On white

5.85

#505CBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#505CBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #505CBB

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##505CBB	#FFFFFF	#000000	##FFFFFF
##505CBB	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A69BE

Deuteranopia (green-blind)

#1660B9

Tritanopia (blue-blind)

#0C7183

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #505cbb;
/* rgb */ color: rgb(80, 92, 187);
/* oklch */ color: oklch(51.5% 0.148 274.5);

Tailwind

colors: {
  custom: {
    50: '#8a8ad0',
    500: '#505cbb',
    950: '#000000',
  },
}

SCSS

$custom: #505cbb;
$custom-light: #8a8ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#505cbb",
  "rgb": {
    "r": 80,
    "g": 92,
    "b": 187
  },
  "hsl": {
    "h": 233.271,
    "s": 44.033,
    "l": 52.353
  },
  "oklch": {
    "l": 0.515,
    "c": 0.14835,
    "h": 274.5
  },
  "luminance": 0.12948
}

Semantic roles & 50–950 ramp

primary

#505CBB

secondary

#CBC59C

accent

#C554D4

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #505CBB

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

Preview Lab → · Contrast checker → · Palette generator →