#516BD9#516BD9

#516BD9 is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.6% C 0.170 H 270.2°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#516BD9
RGB	rgb(81, 107, 217)
HSL	hsl(229, 64%, 58%)
HSV	hsv(229, 63%, 85%)
CMYK	cmyk(62.7%, 50.7%, 0%, 14.9%)
CIE-LAB	lab(48.60, 24.64, -59.45)
CIE-LCH	lch(48.60, 64.35, 292.51°)
OKLab	oklab(56.61% 0.0005 -0.1704)
OKLCH	oklch(56.61% 0.17 270.2)
XYZ	xyz(21.1712, 17.2726, 67.8504)
Luminance	0.1727 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516BD9 #D9BF51

analogous

#51AFD9 #516BD9 #7B51D9

triadic

#516BD9 #D9516B #6BD951

tetradic

#516BD9 #D951AF #D9BF51 #51D97B

square

#516BD9 #D951AF #D9BF51 #51D97B

split-complementary

#516BD9 #D97B51 #AFD951

monochromatic

#1F3590 #2A47C2 #516BD9 #8396E4 #B5C0EF

Accessibility & contrast

On white

4.71

#516BD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#516BD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516BD9

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516BD9	#FFFFFF	#000000	##FFFFFF
##516BD9	1.00	4.71	4.45	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C7ADD

Deuteranopia (green-blind)

#006ED7

Tritanopia (blue-blind)

#008598

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #516bd9;
/* rgb */ color: rgb(81, 107, 217);
/* oklch */ color: oklch(56.6% 0.170 270.2);

Tailwind

colors: {
  custom: {
    50: '#8f95e5',
    500: '#516bd9',
    950: '#000000',
  },
}

SCSS

$custom: #516bd9;
$custom-light: #8f95e5;
$custom-dark: #000000;

JSON

{
  "hex": "#516bd9",
  "rgb": {
    "r": 81,
    "g": 107,
    "b": 217
  },
  "hsl": {
    "h": 228.529,
    "s": 64.151,
    "l": 58.431
  },
  "oklch": {
    "l": 0.56611,
    "c": 0.17039,
    "h": 270.2
  },
  "luminance": 0.17274
}

Semantic roles & 50–950 ramp

primary

#516BD9

secondary

#DED4A8

accent

#C741E7

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #516BD9

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

Preview Lab → · Contrast checker → · Palette generator →