#516BD0#516BD0

#516BD0 is a mid, vivid blue. Relative luminance 0.168; OKLCH L 56.0% C 0.158 H 269.8°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#516BD0
RGB	rgb(81, 107, 208)
HSL	hsl(228, 57%, 57%)
HSV	hsv(228, 61%, 82%)
CMYK	cmyk(61.1%, 48.6%, 0%, 18.4%)
CIE-LAB	lab(48.03, 21.57, -55.24)
CIE-LCH	lch(48.03, 59.31, 291.33°)
OKLab	oklab(55.99% -0.0005 -0.158)
OKLCH	oklch(55.99% 0.158 269.8)
XYZ	xyz(20.0324, 16.8171, 61.8526)
Luminance	0.1682 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516BD0 #D0B651

analogous

#51AAD0 #516BD0 #7751D0

triadic

#516BD0 #D0516B #6BD051

tetradic

#516BD0 #D051AA #D0B651 #51D077

square

#516BD0 #D051AA #D0B651 #51D077

split-complementary

#516BD0 #D07751 #AAD051

monochromatic

#233783 #304BB3 #516BD0 #8194DD #B1BDEA

Accessibility & contrast

On white

4.81

#516BD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#516BD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516BD0

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516BD0	#FFFFFF	#000000	##FFFFFF
##516BD0	1.00	4.81	4.36	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3778D4

Deuteranopia (green-blind)

#1E6DCE

Tritanopia (blue-blind)

#008293

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #516bd0;
/* rgb */ color: rgb(81, 107, 208);
/* oklch */ color: oklch(56.0% 0.158 269.8);

Tailwind

colors: {
  custom: {
    50: '#8d95df',
    500: '#516bd0',
    950: '#000000',
  },
}

SCSS

$custom: #516bd0;
$custom-light: #8d95df;
$custom-dark: #000000;

JSON

{
  "hex": "#516bd0",
  "rgb": {
    "r": 81,
    "g": 107,
    "b": 208
  },
  "hsl": {
    "h": 227.717,
    "s": 57.466,
    "l": 56.667
  },
  "oklch": {
    "l": 0.55993,
    "c": 0.15803,
    "h": 269.8
  },
  "luminance": 0.16819
}

Semantic roles & 50–950 ramp

primary

#516BD0

secondary

#D8CEA4

accent

#C147E1

background

#F9F9FD

surface

#F1F1FB

border

#CBCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516BD0

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

Preview Lab → · Contrast checker → · Palette generator →