#516FDF#516FDF

#516FDF is a mid, vivid blue. Relative luminance 0.184; OKLCH L 57.8% C 0.174 H 269.1°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#516FDF
RGB	rgb(81, 111, 223)
HSL	hsl(227, 69%, 60%)
HSV	hsv(227, 64%, 87%)
CMYK	cmyk(63.7%, 50.2%, 0%, 12.5%)
CIE-LAB	lab(50.03, 24.20, -60.54)
CIE-LCH	lch(50.03, 65.20, 291.79°)
OKLab	oklab(57.82% -0.0027 -0.1736)
OKLCH	oklch(57.82% 0.174 269.1)
XYZ	xyz(22.3925, 18.4439, 72.1777)
Luminance	0.1845 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516FDF #DFC151

analogous

#51B6DF #516FDF #7A51DF

triadic

#516FDF #DF516F #6FDF51

tetradic

#516FDF #DF51B6 #DFC151 #51DF7A

square

#516FDF #DF51B6 #DFC151 #51DF7A

split-complementary

#516FDF #DF7A51 #B6DF51

monochromatic

#1C3799 #2649CD #516FDF #859AE9 #B8C5F2

Accessibility & contrast

On white

4.48

#516FDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#516FDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #516FDF

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516FDF	#FFFFFF	#000000	##000000
##516FDF	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F7EE3

Deuteranopia (green-blind)

#0071DD

Tritanopia (blue-blind)

#00899C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #516fdf;
/* rgb */ color: rgb(81, 111, 223);
/* oklch */ color: oklch(57.8% 0.174 269.1);

Tailwind

colors: {
  custom: {
    50: '#8f97ea',
    500: '#516fdf',
    950: '#000000',
  },
}

SCSS

$custom: #516fdf;
$custom-light: #8f97ea;
$custom-dark: #000000;

JSON

{
  "hex": "#516fdf",
  "rgb": {
    "r": 81,
    "g": 111,
    "b": 223
  },
  "hsl": {
    "h": 227.324,
    "s": 68.932,
    "l": 59.608
  },
  "oklch": {
    "l": 0.57816,
    "c": 0.17358,
    "h": 269.1
  },
  "luminance": 0.18446
}

Semantic roles & 50–950 ramp

primary

#516FDF

secondary

#E1D6AA

accent

#C73CEC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #516FDF

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

Preview Lab → · Contrast checker → · Palette generator →