#516ACF#516ACF

#516ACF is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.7% C 0.158 H 270.1°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#516ACF
RGB	rgb(81, 106, 207)
HSL	hsl(228, 57%, 56%)
HSV	hsv(228, 61%, 81%)
CMYK	cmyk(60.9%, 48.8%, 0%, 18.8%)
CIE-LAB	lab(47.70, 21.85, -55.20)
CIE-LCH	lch(47.70, 59.37, 291.60°)
OKLab	oklab(55.72% 0.0004 -0.1579)
OKLCH	oklch(55.72% 0.158 270.1)
XYZ	xyz(19.8061, 16.5607, 61.1722)
Luminance	0.1656 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516ACF #CFB651

analogous

#51A9CF #516ACF #7751CF

triadic

#516ACF #CF516A #6ACF51

tetradic

#516ACF #CF51A9 #CFB651 #51CF77

square

#516ACF #CF51A9 #CFB651 #51CF77

split-complementary

#516ACF #CF7751 #A9CF51

monochromatic

#243682 #314BB2 #516ACF #8193DC #B1BCE9

Accessibility & contrast

On white

4.87

#516ACF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#516ACF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516ACF

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516ACF	#FFFFFF	#000000	##FFFFFF
##516ACF	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3677D3

Deuteranopia (green-blind)

#1D6CCD

Tritanopia (blue-blind)

#008193

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #516acf;
/* rgb */ color: rgb(81, 106, 207);
/* oklch */ color: oklch(55.7% 0.158 270.1);

Tailwind

colors: {
  custom: {
    50: '#8d94de',
    500: '#516acf',
    950: '#000000',
  },
}

SCSS

$custom: #516acf;
$custom-light: #8d94de;
$custom-dark: #000000;

JSON

{
  "hex": "#516acf",
  "rgb": {
    "r": 81,
    "g": 106,
    "b": 207
  },
  "hsl": {
    "h": 228.095,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.55724,
    "c": 0.15791,
    "h": 270.1
  },
  "luminance": 0.16562
}

Semantic roles & 50–950 ramp

primary

#516ACF

secondary

#D8CEA4

accent

#C248E0

background

#F9F9FD

surface

#F1F1FB

border

#CBCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516ACF

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

Preview Lab → · Contrast checker → · Palette generator →