#516CDB#516CDB

#516CDB is a mid, vivid blue. Relative luminance 0.176; OKLCH L 56.9% C 0.172 H 269.9°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#516CDB
RGB	rgb(81, 108, 219)
HSL	hsl(228, 66%, 59%)
HSV	hsv(228, 63%, 86%)
CMYK	cmyk(63%, 50.7%, 0%, 14.1%)
CIE-LAB	lab(48.99, 24.70, -59.95)
CIE-LCH	lch(48.99, 64.84, 292.39°)
OKLab	oklab(56.95% -0.0003 -0.1719)
OKLCH	oklch(56.95% 0.172 269.9)
XYZ	xyz(21.5378, 17.5870, 69.2637)
Luminance	0.1759 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516CDB #DBC051

analogous

#51B1DB #516CDB #7B51DB

triadic

#516CDB #DB516C #6CDB51

tetradic

#516CDB #DB51B1 #DBC051 #51DB7B

square

#516CDB #DB51B1 #DBC051 #51DB7B

split-complementary

#516CDB #DB7B51 #B1DB51

monochromatic

#1E3593 #2948C6 #516CDB #8497E5 #B6C2F0

Accessibility & contrast

On white

4.65

#516CDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#516CDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #516CDB

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516CDB	#FFFFFF	#000000	##FFFFFF
##516CDB	1.00	4.65	4.52	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C7BDF

Deuteranopia (green-blind)

#006FD9

Tritanopia (blue-blind)

#008699

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #516cdb;
/* rgb */ color: rgb(81, 108, 219);
/* oklch */ color: oklch(56.9% 0.172 269.9);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#516cdb",
  "rgb": {
    "r": 81,
    "g": 108,
    "b": 219
  },
  "hsl": {
    "h": 228.261,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.56947,
    "c": 0.17187,
    "h": 269.9
  },
  "luminance": 0.17589
}

Semantic roles & 50–950 ramp

primary

#516CDB

secondary

#DFD4A9

accent

#C73FE9

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #516CDB

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

Preview Lab → · Contrast checker → · Palette generator →