#506FDB#506FDB

#506FDB is a mid, vivid blue. Relative luminance 0.182; OKLCH L 57.5% C 0.168 H 268.6°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#506FDB
RGB	rgb(80, 111, 219)
HSL	hsl(227, 66%, 59%)
HSV	hsv(227, 63%, 86%)
CMYK	cmyk(63.5%, 49.3%, 0%, 14.1%)
CIE-LAB	lab(49.72, 22.66, -58.78)
CIE-LCH	lch(49.72, 62.99, 291.08°)
OKLab	oklab(57.49% -0.0041 -0.1684)
OKLCH	oklch(57.49% 0.168 268.6)
XYZ	xyz(21.7745, 18.1869, 69.3670)
Luminance	0.1819 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#506FDB #DBBC50

analogous

#50B4DB #506FDB #7650DB

triadic

#506FDB #DB506F #6FDB50

tetradic

#506FDB #DB50B4 #DBBC50 #50DB76

square

#506FDB #DB50B4 #DBBC50 #50DB76

split-complementary

#506FDB #DB7650 #B4DB50

monochromatic

#1E3892 #294CC5 #506FDB #8399E5 #B6C3F0

Accessibility & contrast

On white

4.53

#506FDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#506FDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #506FDB

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##506FDB	#FFFFFF	#000000	##000000
##506FDB	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#347DDF

Deuteranopia (green-blind)

#0F70D9

Tritanopia (blue-blind)

#00889B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #506fdb;
/* rgb */ color: rgb(80, 111, 219);
/* oklch */ color: oklch(57.5% 0.168 268.6);

Tailwind

colors: {
  custom: {
    50: '#8e97e7',
    500: '#506fdb',
    950: '#000000',
  },
}

SCSS

$custom: #506fdb;
$custom-light: #8e97e7;
$custom-dark: #000000;

JSON

{
  "hex": "#506fdb",
  "rgb": {
    "r": 80,
    "g": 111,
    "b": 219
  },
  "hsl": {
    "h": 226.619,
    "s": 65.877,
    "l": 58.627
  },
  "oklch": {
    "l": 0.57486,
    "c": 0.16844,
    "h": 268.6
  },
  "luminance": 0.18189
}

Semantic roles & 50–950 ramp

primary

#506FDB

secondary

#DFD3A8

accent

#C33FE9

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #506FDB

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

Preview Lab → · Contrast checker → · Palette generator →