#516FBA#516FBA

#516FBA is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.4% C 0.122 H 266.1°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#516FBA
RGB	rgb(81, 111, 186)
HSL	hsl(223, 43%, 52%)
HSV	hsv(223, 56%, 73%)
CMYK	cmyk(56.5%, 40.3%, 0%, 27.1%)
CIE-LAB	lab(47.83, 11.67, -42.91)
CIE-LCH	lch(47.83, 44.47, 285.21°)
OKLab	oklab(55.43% -0.0083 -0.1218)
OKLCH	oklch(55.43% 0.122 266.1)
XYZ	xyz(17.9377, 16.6620, 48.7157)
Luminance	0.1666 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516FBA #BA9C51

analogous

#51A4BA #516FBA #6751BA

triadic

#516FBA #BA516F #6FBA51

tetradic

#516FBA #BA51A4 #BA9C51 #51BA67

square

#516FBA #BA51A4 #BA9C51 #51BA67

split-complementary

#516FBA #BA6751 #A4BA51

monochromatic

#293B68 #3A5493 #516FBA #7D93CB #A9B8DD

Accessibility & contrast

On white

4.85

#516FBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#516FBA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516FBA

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516FBA	#FFFFFF	#000000	##FFFFFF
##516FBA	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5077BD

Deuteranopia (green-blind)

#426DB8

Tritanopia (blue-blind)

#0B7F8B

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #516fba;
/* rgb */ color: rgb(81, 111, 186);
/* oklch */ color: oklch(55.4% 0.122 266.1);

Tailwind

colors: {
  custom: {
    50: '#8a98cf',
    500: '#516fba',
    950: '#000000',
  },
}

SCSS

$custom: #516fba;
$custom-light: #8a98cf;
$custom-dark: #000000;

JSON

{
  "hex": "#516fba",
  "rgb": {
    "r": 81,
    "g": 111,
    "b": 186
  },
  "hsl": {
    "h": 222.857,
    "s": 43.21,
    "l": 52.353
  },
  "oklch": {
    "l": 0.55426,
    "c": 0.12207,
    "h": 266.1
  },
  "luminance": 0.16663
}

Semantic roles & 50–950 ramp

primary

#516FBA

secondary

#CABD9D

accent

#AF55D3

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #516FBA

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

Preview Lab → · Contrast checker → · Palette generator →