#516CD3#516CD3

#516CD3 is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.4% C 0.161 H 269.6°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#516CD3
RGB	rgb(81, 108, 211)
HSL	hsl(228, 60%, 57%)
HSV	hsv(228, 62%, 83%)
CMYK	cmyk(61.6%, 48.8%, 0%, 17.3%)
CIE-LAB	lab(48.48, 21.97, -56.23)
CIE-LCH	lch(48.48, 60.37, 291.34°)
OKLab	oklab(56.4% -0.0011 -0.1609)
OKLCH	oklch(56.4% 0.161 269.6)
XYZ	xyz(20.5098, 17.1759, 63.8498)
Luminance	0.1718 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516CD3 #D3B851

analogous

#51ADD3 #516CD3 #7751D3

triadic

#516CD3 #D3516C #6CD351

tetradic

#516CD3 #D351AD #D3B851 #51D377

square

#516CD3 #D351AD #D3B851 #51D377

split-complementary

#516CD3 #D37751 #ADD351

monochromatic

#223787 #2F4BB8 #516CD3 #8295DF #B3BFEC

Accessibility & contrast

On white

4.73

#516CD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#516CD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516CD3

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516CD3	#FFFFFF	#000000	##FFFFFF
##516CD3	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3679D7

Deuteranopia (green-blind)

#1B6ED1

Tritanopia (blue-blind)

#008495

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #516cd3;
/* rgb */ color: rgb(81, 108, 211);
/* oklch */ color: oklch(56.4% 0.161 269.6);

Tailwind

colors: {
  custom: {
    50: '#8e95e1',
    500: '#516cd3',
    950: '#000000',
  },
}

SCSS

$custom: #516cd3;
$custom-light: #8e95e1;
$custom-dark: #000000;

JSON

{
  "hex": "#516cd3",
  "rgb": {
    "r": 81,
    "g": 108,
    "b": 211
  },
  "hsl": {
    "h": 227.538,
    "s": 59.633,
    "l": 57.255
  },
  "oklch": {
    "l": 0.56396,
    "c": 0.16091,
    "h": 269.6
  },
  "luminance": 0.17178
}

Semantic roles & 50–950 ramp

primary

#516CD3

secondary

#DACFA6

accent

#C245E3

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516CD3

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

Preview Lab → · Contrast checker → · Palette generator →