#516FDA#516FDA

#516FDA is a mid, vivid blue. Relative luminance 0.182; OKLCH L 57.5% C 0.167 H 268.9°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#516FDA
RGB	rgb(81, 111, 218)
HSL	hsl(227, 65%, 59%)
HSV	hsv(227, 63%, 85%)
CMYK	cmyk(62.8%, 49.1%, 0%, 14.5%)
CIE-LAB	lab(49.71, 22.49, -58.23)
CIE-LCH	lch(49.71, 62.42, 291.12°)
OKLab	oklab(57.47% -0.0032 -0.1667)
OKLCH	oklch(57.47% 0.167 268.9)
XYZ	xyz(21.7284, 18.1783, 68.6798)
Luminance	0.1818 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516FDA #DABC51

analogous

#51B3DA #516FDA #7751DA

triadic

#516FDA #DA516F #6FDA51

tetradic

#516FDA #DA51B3 #DABC51 #51DA77

square

#516FDA #DA51B3 #DABC51 #51DA77

split-complementary

#516FDA #DA7751 #B3DA51

monochromatic

#1F3892 #2A4CC4 #516FDA #8399E5 #B6C3EF

Accessibility & contrast

On white

4.53

#516FDA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#516FDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #516FDA

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516FDA	#FFFFFF	#000000	##000000
##516FDA	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#357DDE

Deuteranopia (green-blind)

#1470D8

Tritanopia (blue-blind)

#00889A

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #516fda;
/* rgb */ color: rgb(81, 111, 218);
/* oklch */ color: oklch(57.5% 0.167 268.9);

Tailwind

colors: {
  custom: {
    50: '#8f97e6',
    500: '#516fda',
    950: '#000000',
  },
}

SCSS

$custom: #516fda;
$custom-light: #8f97e6;
$custom-dark: #000000;

JSON

{
  "hex": "#516fda",
  "rgb": {
    "r": 81,
    "g": 111,
    "b": 218
  },
  "hsl": {
    "h": 226.861,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.57472,
    "c": 0.16678,
    "h": 268.9
  },
  "luminance": 0.1818
}

Semantic roles & 50–950 ramp

primary

#516FDA

secondary

#DED3A8

accent

#C340E8

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #516FDA

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

Preview Lab → · Contrast checker → · Palette generator →