#516CD8#516CD8

#516CD8 is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.7% C 0.168 H 269.8°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#516CD8
RGB	rgb(81, 108, 216)
HSL	hsl(228, 63%, 58%)
HSV	hsv(228, 63%, 85%)
CMYK	cmyk(62.5%, 50%, 0%, 15.3%)
CIE-LAB	lab(48.80, 23.67, -58.56)
CIE-LCH	lch(48.80, 63.17, 292.01°)
OKLab	oklab(56.74% -0.0006 -0.1678)
OKLCH	oklch(56.74% 0.168 269.8)
XYZ	xyz(21.1464, 17.4305, 67.2025)
Luminance	0.1743 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516CD8 #D8BD51

analogous

#51AFD8 #516CD8 #7951D8

triadic

#516CD8 #D8516C #6CD851

tetradic

#516CD8 #D851AF #D8BD51 #51D879

square

#516CD8 #D851AF #D8BD51 #51D879

split-complementary

#516CD8 #D87951 #AFD851

monochromatic

#20368F #2B49C1 #516CD8 #8396E3 #B5C0EE

Accessibility & contrast

On white

4.68

#516CD8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#516CD8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516CD8

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516CD8	#FFFFFF	#000000	##FFFFFF
##516CD8	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#307ADC

Deuteranopia (green-blind)

#096ED6

Tritanopia (blue-blind)

#008598

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #516cd8;
/* rgb */ color: rgb(81, 108, 216);
/* oklch */ color: oklch(56.7% 0.168 269.8);

Tailwind

colors: {
  custom: {
    50: '#8e95e5',
    500: '#516cd8',
    950: '#000000',
  },
}

SCSS

$custom: #516cd8;
$custom-light: #8e95e5;
$custom-dark: #000000;

JSON

{
  "hex": "#516cd8",
  "rgb": {
    "r": 81,
    "g": 108,
    "b": 216
  },
  "hsl": {
    "h": 228,
    "s": 63.38,
    "l": 58.235
  },
  "oklch": {
    "l": 0.56738,
    "c": 0.16778,
    "h": 269.8
  },
  "luminance": 0.17432
}

Semantic roles & 50–950 ramp

primary

#516CD8

secondary

#DDD3A8

accent

#C541E6

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #516CD8

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

Preview Lab → · Contrast checker → · Palette generator →