#516BDF#516BDF

#516BDF is a mid, vivid blue. Relative luminance 0.176; OKLCH L 57.0% C 0.179 H 270.3°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#516BDF
RGB	rgb(81, 107, 223)
HSL	hsl(229, 69%, 60%)
HSV	hsv(229, 64%, 87%)
CMYK	cmyk(63.7%, 52%, 0%, 12.5%)
CIE-LAB	lab(49.00, 26.68, -62.21)
CIE-LCH	lch(49.00, 67.69, 293.21°)
OKLab	oklab(57.03% 0.001 -0.1785)
OKLCH	oklch(57.03% 0.179 270.3)
XYZ	xyz(21.9658, 17.5905, 72.0355)
Luminance	0.1759 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516BDF #DFC551

analogous

#51B2DF #516BDF #7E51DF

triadic

#516BDF #DF516B #6BDF51

tetradic

#516BDF #DF51B2 #DFC551 #51DF7E

square

#516BDF #DF51B2 #DFC551 #51DF7E

split-complementary

#516BDF #DF7E51 #B2DF51

monochromatic

#1C3399 #2644CD #516BDF #8597E9 #B8C3F2

Accessibility & contrast

On white

4.65

#516BDF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#516BDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #516BDF

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516BDF	#FFFFFF	#000000	##FFFFFF
##516BDF	1.00	4.65	4.52	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#227BE3

Deuteranopia (green-blind)

#006EDD

Tritanopia (blue-blind)

#00869B

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #516bdf;
/* rgb */ color: rgb(81, 107, 223);
/* oklch */ color: oklch(57.0% 0.179 270.3);

Tailwind

colors: {
  custom: {
    50: '#9095ea',
    500: '#516bdf',
    950: '#000000',
  },
}

SCSS

$custom: #516bdf;
$custom-light: #9095ea;
$custom-dark: #000000;

JSON

{
  "hex": "#516bdf",
  "rgb": {
    "r": 81,
    "g": 107,
    "b": 223
  },
  "hsl": {
    "h": 229.014,
    "s": 68.932,
    "l": 59.608
  },
  "oklch": {
    "l": 0.57034,
    "c": 0.17852,
    "h": 270.3
  },
  "luminance": 0.17592
}

Semantic roles & 50–950 ramp

primary

#516BDF

secondary

#E1D7AA

accent

#CC3CEC

background

#F9F9FE

surface

#F2F1FD

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #516BDF

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

Preview Lab → · Contrast checker → · Palette generator →