#516CD9#516CD9

#516CD9 is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.8% C 0.169 H 269.8°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#516CD9
RGB	rgb(81, 108, 217)
HSL	hsl(228, 64%, 58%)
HSV	hsv(228, 63%, 85%)
CMYK	cmyk(62.7%, 50.2%, 0%, 14.9%)
CIE-LAB	lab(48.86, 24.01, -59.03)
CIE-LCH	lch(48.86, 63.72, 292.14°)
OKLab	oklab(56.81% -0.0005 -0.1691)
OKLCH	oklch(56.81% 0.169 269.8)
XYZ	xyz(21.2761, 17.4824, 67.8854)
Luminance	0.1748 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516CD9 #D9BE51

analogous

#51B0D9 #516CD9 #7A51D9

triadic

#516CD9 #D9516C #6CD951

tetradic

#516CD9 #D951B0 #D9BE51 #51D97A

square

#516CD9 #D951B0 #D9BE51 #51D97A

split-complementary

#516CD9 #D97A51 #B0D951

monochromatic

#1F3690 #2A49C2 #516CD9 #8396E4 #B5C1EF

Accessibility & contrast

On white

4.67

#516CD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#516CD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #516CD9

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516CD9	#FFFFFF	#000000	##FFFFFF
##516CD9	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F7ADD

Deuteranopia (green-blind)

#046ED7

Tritanopia (blue-blind)

#008598

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #516cd9;
/* rgb */ color: rgb(81, 108, 217);
/* oklch */ color: oklch(56.8% 0.169 269.8);

Tailwind

colors: {
  custom: {
    50: '#8f95e5',
    500: '#516cd9',
    950: '#000000',
  },
}

SCSS

$custom: #516cd9;
$custom-light: #8f95e5;
$custom-dark: #000000;

JSON

{
  "hex": "#516cd9",
  "rgb": {
    "r": 81,
    "g": 108,
    "b": 217
  },
  "hsl": {
    "h": 228.088,
    "s": 64.151,
    "l": 58.431
  },
  "oklch": {
    "l": 0.56808,
    "c": 0.16914,
    "h": 269.8
  },
  "luminance": 0.17484
}

Semantic roles & 50–950 ramp

primary

#516CD9

secondary

#DED3A8

accent

#C641E7

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #516CD9

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

Preview Lab → · Contrast checker → · Palette generator →