#516FC0#516FC0

#516FC0 is a mid, vivid blue. Relative luminance 0.169; OKLCH L 55.8% C 0.131 H 266.9°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#516FC0
RGB	rgb(81, 111, 192)
HSL	hsl(224, 47%, 54%)
HSV	hsv(224, 58%, 75%)
CMYK	cmyk(57.8%, 42.2%, 0%, 24.7%)
CIE-LAB	lab(48.16, 13.67, -45.85)
CIE-LCH	lch(48.16, 47.85, 286.60°)
OKLab	oklab(55.79% -0.0071 -0.1304)
OKLCH	oklch(55.79% 0.131 266.9)
XYZ	xyz(18.5890, 16.9225, 52.1457)
Luminance	0.1692 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516FC0 #C0A251

analogous

#51A6C0 #516FC0 #6A51C0

triadic

#516FC0 #C0516F #6FC051

tetradic

#516FC0 #C051A6 #C0A251 #51C06A

square

#516FC0 #C051A6 #C0A251 #51C06A

split-complementary

#516FC0 #C06A51 #A6C051

monochromatic

#283B6F #38539B #516FC0 #7E94D0 #ABB9E1

Accessibility & contrast

On white

4.79

#516FC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#516FC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516FC0

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516FC0	#FFFFFF	#000000	##FFFFFF
##516FC0	1.00	4.79	4.38	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C78C3

Deuteranopia (green-blind)

#3D6EBE

Tritanopia (blue-blind)

#00818E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #516fc0;
/* rgb */ color: rgb(81, 111, 192);
/* oklch */ color: oklch(55.8% 0.131 266.9);

Tailwind

colors: {
  custom: {
    50: '#8a97d3',
    500: '#516fc0',
    950: '#000000',
  },
}

SCSS

$custom: #516fc0;
$custom-light: #8a97d3;
$custom-dark: #000000;

JSON

{
  "hex": "#516fc0",
  "rgb": {
    "r": 81,
    "g": 111,
    "b": 192
  },
  "hsl": {
    "h": 223.784,
    "s": 46.835,
    "l": 53.529
  },
  "oklch": {
    "l": 0.55789,
    "c": 0.13059,
    "h": 266.9
  },
  "luminance": 0.16924
}

Semantic roles & 50–950 ramp

primary

#516FC0

secondary

#CEC19F

accent

#B251D6

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0D0D14

muted

#7D7E83

Preview Lab

Preview with #516FC0

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

Preview Lab → · Contrast checker → · Palette generator →