#516FD9#516FD9

#516FD9 is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.4% C 0.165 H 268.8°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#516FD9
RGB	rgb(81, 111, 217)
HSL	hsl(227, 64%, 58%)
HSV	hsv(227, 63%, 85%)
CMYK	cmyk(62.7%, 48.8%, 0%, 14.9%)
CIE-LAB	lab(49.65, 22.14, -57.76)
CIE-LCH	lch(49.65, 61.86, 290.98°)
OKLab	oklab(57.4% -0.0034 -0.1654)
OKLCH	oklch(57.4% 0.165 268.8)
XYZ	xyz(21.5979, 18.1261, 67.9927)
Luminance	0.1813 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516FD9 #D9BB51

analogous

#51B3D9 #516FD9 #7751D9

triadic

#516FD9 #D9516F #6FD951

tetradic

#516FD9 #D951B3 #D9BB51 #51D977

square

#516FD9 #D951B3 #D9BB51 #51D977

split-complementary

#516FD9 #D97751 #B3D951

monochromatic

#1F3890 #2A4CC2 #516FD9 #8399E4 #B5C2EF

Accessibility & contrast

On white

4.54

#516FD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#516FD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #516FD9

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516FD9	#FFFFFF	#000000	##000000
##516FD9	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#377CDD

Deuteranopia (green-blind)

#1870D7

Tritanopia (blue-blind)

#00879A

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #516fd9;
/* rgb */ color: rgb(81, 111, 217);
/* oklch */ color: oklch(57.4% 0.165 268.8);

Tailwind

colors: {
  custom: {
    50: '#8e97e5',
    500: '#516fd9',
    950: '#000000',
  },
}

SCSS

$custom: #516fd9;
$custom-light: #8e97e5;
$custom-dark: #000000;

JSON

{
  "hex": "#516fd9",
  "rgb": {
    "r": 81,
    "g": 111,
    "b": 217
  },
  "hsl": {
    "h": 226.765,
    "s": 64.151,
    "l": 58.431
  },
  "oklch": {
    "l": 0.57404,
    "c": 0.16541,
    "h": 268.8
  },
  "luminance": 0.18128
}

Semantic roles & 50–950 ramp

primary

#516FD9

secondary

#DED2A8

accent

#C241E7

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #516FD9

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

Preview Lab → · Contrast checker → · Palette generator →