#506BCB#506BCB

#506BCB is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.6% C 0.151 H 269.2°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#506BCB
RGB	rgb(80, 107, 203)
HSL	hsl(227, 54%, 55%)
HSV	hsv(227, 61%, 80%)
CMYK	cmyk(60.6%, 47.3%, 0%, 20.4%)
CIE-LAB	lab(47.66, 19.68, -52.97)
CIE-LCH	lch(47.66, 56.51, 290.38°)
OKLab	oklab(55.6% -0.0021 -0.1514)
OKLCH	oklch(55.6% 0.151 269.2)
XYZ	xyz(19.3418, 16.5310, 58.6599)
Luminance	0.1653 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#506BCB #CBB050

analogous

#50A9CB #506BCB #7250CB

triadic

#506BCB #CB506B #6BCB50

tetradic

#506BCB #CB50A9 #CBB050 #50CB72

square

#506BCB #CB50A9 #CBB050 #50CB72

split-complementary

#506BCB #CB7250 #A9CB50

monochromatic

#25387C #334DAB #506BCB #7F93D9 #AEBBE7

Accessibility & contrast

On white

4.88

#506BCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#506BCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #506BCB

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##506BCB	#FFFFFF	#000000	##FFFFFF
##506BCB	1.00	4.88	4.31	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C77CF

Deuteranopia (green-blind)

#276CC9

Tritanopia (blue-blind)

#008191

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #506bcb;
/* rgb */ color: rgb(80, 107, 203);
/* oklch */ color: oklch(55.6% 0.151 269.2);

Tailwind

colors: {
  custom: {
    50: '#8c95db',
    500: '#506bcb',
    950: '#000000',
  },
}

SCSS

$custom: #506bcb;
$custom-light: #8c95db;
$custom-dark: #000000;

JSON

{
  "hex": "#506bcb",
  "rgb": {
    "r": 80,
    "g": 107,
    "b": 203
  },
  "hsl": {
    "h": 226.829,
    "s": 54.185,
    "l": 55.49
  },
  "oklch": {
    "l": 0.556,
    "c": 0.15138,
    "h": 269.2
  },
  "luminance": 0.16533
}

Semantic roles & 50–950 ramp

primary

#506BCB

secondary

#D5CAA2

accent

#BD4ADE

background

#F9F9FD

surface

#F1F1FB

border

#CBCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #506BCB

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

Preview Lab → · Contrast checker → · Palette generator →