#516BDB#516BDB

#516BDB is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.8% C 0.173 H 270.2°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#516BDB
RGB	rgb(81, 107, 219)
HSL	hsl(229, 66%, 59%)
HSV	hsv(229, 63%, 86%)
CMYK	cmyk(63%, 51.1%, 0%, 14.1%)
CIE-LAB	lab(48.73, 25.32, -60.37)
CIE-LCH	lch(48.73, 65.46, 292.75°)
OKLab	oklab(56.75% 0.0006 -0.1731)
OKLCH	oklch(56.75% 0.173 270.2)
XYZ	xyz(21.4329, 17.3773, 69.2288)
Luminance	0.1738 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516BDB #DBC151

analogous

#51B0DB #516BDB #7C51DB

triadic

#516BDB #DB516B #6BDB51

tetradic

#516BDB #DB51B0 #DBC151 #51DB7C

square

#516BDB #DB51B0 #DBC151 #51DB7C

split-complementary

#516BDB #DB7C51 #B0DB51

monochromatic

#1E3493 #2947C6 #516BDB #8496E5 #B6C1F0

Accessibility & contrast

On white

4.69

#516BDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#516BDB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516BDB

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

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

Color blindness preview

Protanopia (red-blind)

#297ADF

Deuteranopia (green-blind)

#006ED9

Tritanopia (blue-blind)

#008599

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #516bdb;
/* rgb */ color: rgb(81, 107, 219);
/* oklch */ color: oklch(56.8% 0.173 270.2);

Tailwind

colors: {
  custom: {
    50: '#8f95e7',
    500: '#516bdb',
    950: '#000000',
  },
}

SCSS

$custom: #516bdb;
$custom-light: #8f95e7;
$custom-dark: #000000;

JSON

{
  "hex": "#516bdb",
  "rgb": {
    "r": 81,
    "g": 107,
    "b": 219
  },
  "hsl": {
    "h": 228.696,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.56751,
    "c": 0.17311,
    "h": 270.2
  },
  "luminance": 0.17379
}

Semantic roles & 50–950 ramp

primary

#516BDB

secondary

#DFD5A9

accent

#C93FE9

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #516BDB

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

Preview Lab → · Contrast checker → · Palette generator →