#516BD5#516BD5

#516BD5 is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.3% C 0.165 H 270.0°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#516BD5
RGB	rgb(81, 107, 213)
HSL	hsl(228, 61%, 58%)
HSV	hsv(228, 62%, 84%)
CMYK	cmyk(62%, 49.8%, 0%, 16.5%)
CIE-LAB	lab(48.34, 23.27, -57.59)
CIE-LCH	lch(48.34, 62.11, 292.00°)
OKLab	oklab(56.33% 0.0001 -0.1649)
OKLCH	oklch(56.33% 0.165 270)
XYZ	xyz(20.6572, 17.0671, 65.1436)
Luminance	0.1707 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516BD5 #D5BB51

analogous

#51ADD5 #516BD5 #7951D5

triadic

#516BD5 #D5516B #6BD551

tetradic

#516BD5 #D551AD #D5BB51 #51D579

square

#516BD5 #D551AD #D5BB51 #51D579

split-complementary

#516BD5 #D57951 #ADD551

monochromatic

#21368A #2D49BC #516BD5 #8295E1 #B4BFED

Accessibility & contrast

On white

4.76

#516BD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#516BD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516BD5

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516BD5	#FFFFFF	#000000	##FFFFFF
##516BD5	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3179D9

Deuteranopia (green-blind)

#106DD3

Tritanopia (blue-blind)

#008396

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #516bd5;
/* rgb */ color: rgb(81, 107, 213);
/* oklch */ color: oklch(56.3% 0.165 270.0);

Tailwind

colors: {
  custom: {
    50: '#8e95e3',
    500: '#516bd5',
    950: '#000000',
  },
}

SCSS

$custom: #516bd5;
$custom-light: #8e95e3;
$custom-dark: #000000;

JSON

{
  "hex": "#516bd5",
  "rgb": {
    "r": 81,
    "g": 107,
    "b": 213
  },
  "hsl": {
    "h": 228.182,
    "s": 61.111,
    "l": 57.647
  },
  "oklch": {
    "l": 0.56333,
    "c": 0.16492,
    "h": 270
  },
  "luminance": 0.17069
}

Semantic roles & 50–950 ramp

primary

#516BD5

secondary

#DBD1A6

accent

#C544E4

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516BD5

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

Preview Lab → · Contrast checker → · Palette generator →