#516FBF#516FBF

#516FBF is a mid, vivid blue. Relative luminance 0.169; OKLCH L 55.7% C 0.129 H 266.7°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#516FBF
RGB	rgb(81, 111, 191)
HSL	hsl(224, 46%, 53%)
HSV	hsv(224, 58%, 75%)
CMYK	cmyk(57.6%, 41.9%, 0%, 25.1%)
CIE-LAB	lab(48.11, 13.33, -45.36)
CIE-LCH	lch(48.11, 47.28, 286.38°)
OKLab	oklab(55.73% -0.0073 -0.129)
OKLCH	oklch(55.73% 0.129 266.7)
XYZ	xyz(18.4786, 16.8783, 51.5642)
Luminance	0.1688 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516FBF #BFA151

analogous

#51A6BF #516FBF #6A51BF

triadic

#516FBF #BF516F #6FBF51

tetradic

#516FBF #BF51A6 #BFA151 #51BF6A

square

#516FBF #BF51A6 #BFA151 #51BF6A

split-complementary

#516FBF #BF6A51 #A6BF51

monochromatic

#283B6D #39539A #516FBF #7E94CF #AAB9E0

Accessibility & contrast

On white

4.80

#516FBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#516FBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516FBF

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516FBF	#FFFFFF	#000000	##FFFFFF
##516FBF	1.00	4.80	4.38	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C77C2

Deuteranopia (green-blind)

#3E6EBD

Tritanopia (blue-blind)

#00818E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #516fbf;
/* rgb */ color: rgb(81, 111, 191);
/* oklch */ color: oklch(55.7% 0.129 266.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#516fbf",
  "rgb": {
    "r": 81,
    "g": 111,
    "b": 191
  },
  "hsl": {
    "h": 223.636,
    "s": 46.218,
    "l": 53.333
  },
  "oklch": {
    "l": 0.55727,
    "c": 0.12917,
    "h": 266.7
  },
  "luminance": 0.1688
}

Semantic roles & 50–950 ramp

primary

#516FBF

secondary

#CEC19E

accent

#B252D6

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #516FBF

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

Preview Lab → · Contrast checker → · Palette generator →