#516DD0#516DD0

#516DD0 is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.4% C 0.156 H 269.1°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#516DD0
RGB	rgb(81, 109, 208)
HSL	hsl(227, 57%, 57%)
HSV	hsv(227, 61%, 82%)
CMYK	cmyk(61.1%, 47.6%, 0%, 18.4%)
CIE-LAB	lab(48.56, 20.32, -54.39)
CIE-LCH	lch(48.56, 58.06, 290.49°)
OKLab	oklab(56.4% -0.0025 -0.1555)
OKLCH	oklch(56.4% 0.156 269.1)
XYZ	xyz(20.2433, 17.2390, 61.9230)
Luminance	0.1724 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516DD0 #D0B451

analogous

#51ACD0 #516DD0 #7551D0

triadic

#516DD0 #D0516D #6DD051

tetradic

#516DD0 #D051AC #D0B451 #51D075

square

#516DD0 #D051AC #D0B451 #51D075

split-complementary

#516DD0 #D07551 #ACD051

monochromatic

#233983 #304DB3 #516DD0 #8195DD #B1BEEA

Accessibility & contrast

On white

4.72

#516DD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#516DD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516DD0

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516DD0	#FFFFFF	#000000	##FFFFFF
##516DD0	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B79D4

Deuteranopia (green-blind)

#246ECE

Tritanopia (blue-blind)

#008494

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #516dd0;
/* rgb */ color: rgb(81, 109, 208);
/* oklch */ color: oklch(56.4% 0.156 269.1);

Tailwind

colors: {
  custom: {
    50: '#8d96df',
    500: '#516dd0',
    950: '#000000',
  },
}

SCSS

$custom: #516dd0;
$custom-light: #8d96df;
$custom-dark: #000000;

JSON

{
  "hex": "#516dd0",
  "rgb": {
    "r": 81,
    "g": 109,
    "b": 208
  },
  "hsl": {
    "h": 226.772,
    "s": 57.466,
    "l": 56.667
  },
  "oklch": {
    "l": 0.56396,
    "c": 0.15552,
    "h": 269.1
  },
  "luminance": 0.17241
}

Semantic roles & 50–950 ramp

primary

#516DD0

secondary

#D8CDA4

accent

#BF47E1

background

#F9F9FD

surface

#F1F1FB

border

#CBCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516DD0

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

Preview Lab → · Contrast checker → · Palette generator →