#516FCC#516FCC

#516FCC is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.5% C 0.147 H 268.0°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#516FCC
RGB	rgb(81, 111, 204)
HSL	hsl(225, 55%, 56%)
HSV	hsv(225, 60%, 80%)
CMYK	cmyk(60.3%, 45.6%, 0%, 20%)
CIE-LAB	lab(48.85, 17.72, -51.63)
CIE-LCH	lch(48.85, 54.59, 288.94°)
OKLab	oklab(56.54% -0.0051 -0.1474)
OKLCH	oklch(56.54% 0.147 268)
XYZ	xyz(19.9732, 17.4762, 59.4357)
Luminance	0.1748 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516FCC #CCAE51

analogous

#51ACCC #516FCC #7051CC

triadic

#516FCC #CC516F #6FCC51

tetradic

#516FCC #CC51AC #CCAE51 #51CC70

square

#516FCC #CC51AC #CCAE51 #51CC70

split-complementary

#516FCC #CC7051 #ACCC51

monochromatic

#253B7E #3351AD #516FCC #8096DA #B0BDE8

Accessibility & contrast

On white

4.67

#516FCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#516FCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #516FCC

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516FCC	#FFFFFF	#000000	##FFFFFF
##516FCC	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#437ACF

Deuteranopia (green-blind)

#306FCA

Tritanopia (blue-blind)

#008493

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #516fcc;
/* rgb */ color: rgb(81, 111, 204);
/* oklch */ color: oklch(56.5% 0.147 268.0);

Tailwind

colors: {
  custom: {
    50: '#8c97dc',
    500: '#516fcc',
    950: '#000000',
  },
}

SCSS

$custom: #516fcc;
$custom-light: #8c97dc;
$custom-dark: #000000;

JSON

{
  "hex": "#516fcc",
  "rgb": {
    "r": 81,
    "g": 111,
    "b": 204
  },
  "hsl": {
    "h": 225.366,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.56543,
    "c": 0.14746,
    "h": 268
  },
  "luminance": 0.17478
}

Semantic roles & 50–950 ramp

primary

#516FCC

secondary

#D6C9A3

accent

#BA4ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516FCC

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

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