#516FD0#516FD0

#516FD0 is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.8% C 0.153 H 268.3°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#516FD0
RGB	rgb(81, 111, 208)
HSL	hsl(226, 57%, 57%)
HSV	hsv(226, 61%, 82%)
CMYK	cmyk(61.1%, 46.6%, 0%, 18.4%)
CIE-LAB	lab(49.09, 19.08, -53.53)
CIE-LCH	lch(49.09, 56.83, 289.61°)
OKLab	oklab(56.8% -0.0045 -0.1529)
OKLCH	oklch(56.8% 0.153 268.3)
XYZ	xyz(20.4591, 17.6705, 61.9949)
Luminance	0.1767 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516FD0 #D0B251

analogous

#51AFD0 #516FD0 #7351D0

triadic

#516FD0 #D0516F #6FD051

tetradic

#516FD0 #D051AF #D0B251 #51D073

square

#516FD0 #D051AF #D0B251 #51D073

split-complementary

#516FD0 #D07351 #AFD051

monochromatic

#233A83 #304FB3 #516FD0 #8197DD #B1BFEA

Accessibility & contrast

On white

4.63

#516FD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#516FD0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #516FD0

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516FD0	#FFFFFF	#000000	##FFFFFF
##516FD0	1.00	4.63	4.53	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#407BD4

Deuteranopia (green-blind)

#2A6FCE

Tritanopia (blue-blind)

#008595

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #516fd0;
/* rgb */ color: rgb(81, 111, 208);
/* oklch */ color: oklch(56.8% 0.153 268.3);

Tailwind

colors: {
  custom: {
    50: '#8d97df',
    500: '#516fd0',
    950: '#000000',
  },
}

SCSS

$custom: #516fd0;
$custom-light: #8d97df;
$custom-dark: #000000;

JSON

{
  "hex": "#516fd0",
  "rgb": {
    "r": 81,
    "g": 111,
    "b": 208
  },
  "hsl": {
    "h": 225.827,
    "s": 57.466,
    "l": 56.667
  },
  "oklch": {
    "l": 0.56804,
    "c": 0.15302,
    "h": 268.3
  },
  "luminance": 0.17672
}

Semantic roles & 50–950 ramp

primary

#516FD0

secondary

#D8CCA4

accent

#BC47E1

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516FD0

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

Preview Lab → · Contrast checker → · Palette generator →