#516DD8#516DD8

#516DD8 is a mid, vivid blue. Relative luminance 0.176; OKLCH L 56.9% C 0.167 H 269.5°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#516DD8
RGB	rgb(81, 109, 216)
HSL	hsl(228, 63%, 58%)
HSV	hsv(228, 63%, 85%)
CMYK	cmyk(62.5%, 49.5%, 0%, 15.3%)
CIE-LAB	lab(49.06, 23.05, -58.14)
CIE-LCH	lch(49.06, 62.54, 291.62°)
OKLab	oklab(56.94% -0.0015 -0.1665)
OKLCH	oklch(56.94% 0.167 269.5)
XYZ	xyz(21.2525, 17.6426, 67.2378)
Luminance	0.1764 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516DD8 #D8BC51

analogous

#51B0D8 #516DD8 #7951D8

triadic

#516DD8 #D8516D #6DD851

tetradic

#516DD8 #D851B0 #D8BC51 #51D879

square

#516DD8 #D851B0 #D8BC51 #51D879

split-complementary

#516DD8 #D87951 #B0D851

monochromatic

#20378F #2B4AC1 #516DD8 #8397E3 #B5C1EE

Accessibility & contrast

On white

4.64

#516DD8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#516DD8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #516DD8

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516DD8	#FFFFFF	#000000	##FFFFFF
##516DD8	1.00	4.64	4.53	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#337BDC

Deuteranopia (green-blind)

#106FD6

Tritanopia (blue-blind)

#008698

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #516dd8;
/* rgb */ color: rgb(81, 109, 216);
/* oklch */ color: oklch(56.9% 0.167 269.5);

Tailwind

colors: {
  custom: {
    50: '#8e96e5',
    500: '#516dd8',
    950: '#000000',
  },
}

SCSS

$custom: #516dd8;
$custom-light: #8e96e5;
$custom-dark: #000000;

JSON

{
  "hex": "#516dd8",
  "rgb": {
    "r": 81,
    "g": 109,
    "b": 216
  },
  "hsl": {
    "h": 227.556,
    "s": 63.38,
    "l": 58.235
  },
  "oklch": {
    "l": 0.56937,
    "c": 0.16653,
    "h": 269.5
  },
  "luminance": 0.17644
}

Semantic roles & 50–950 ramp

primary

#516DD8

secondary

#DDD2A8

accent

#C441E6

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #516DD8

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

Preview Lab → · Contrast checker → · Palette generator →