#516CD0#516CD0

#516CD0 is a mid, vivid blue. Relative luminance 0.170; OKLCH L 56.2% C 0.157 H 269.5°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#516CD0
RGB	rgb(81, 108, 208)
HSL	hsl(227, 57%, 57%)
HSV	hsv(227, 61%, 82%)
CMYK	cmyk(61.1%, 48.1%, 0%, 18.4%)
CIE-LAB	lab(48.29, 20.95, -54.82)
CIE-LCH	lch(48.29, 58.68, 290.91°)
OKLab	oklab(56.19% -0.0015 -0.1568)
OKLCH	oklch(56.19% 0.157 269.5)
XYZ	xyz(20.1372, 17.0268, 61.8876)
Luminance	0.1703 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516CD0 #D0B551

analogous

#51ACD0 #516CD0 #7651D0

triadic

#516CD0 #D0516C #6CD051

tetradic

#516CD0 #D051AC #D0B551 #51D076

square

#516CD0 #D051AC #D0B551 #51D076

split-complementary

#516CD0 #D07651 #ACD051

monochromatic

#233883 #304CB3 #516CD0 #8195DD #B1BDEA

Accessibility & contrast

On white

4.77

#516CD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#516CD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516CD0

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516CD0	#FFFFFF	#000000	##FFFFFF
##516CD0	1.00	4.77	4.41	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3979D4

Deuteranopia (green-blind)

#216DCE

Tritanopia (blue-blind)

#008394

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #516cd0;
/* rgb */ color: rgb(81, 108, 208);
/* oklch */ color: oklch(56.2% 0.157 269.5);

Tailwind

colors: {
  custom: {
    50: '#8d95df',
    500: '#516cd0',
    950: '#000000',
  },
}

SCSS

$custom: #516cd0;
$custom-light: #8d95df;
$custom-dark: #000000;

JSON

{
  "hex": "#516cd0",
  "rgb": {
    "r": 81,
    "g": 108,
    "b": 208
  },
  "hsl": {
    "h": 227.244,
    "s": 57.466,
    "l": 56.667
  },
  "oklch": {
    "l": 0.56194,
    "c": 0.15677,
    "h": 269.5
  },
  "luminance": 0.17029
}

Semantic roles & 50–950 ramp

primary

#516CD0

secondary

#D8CDA4

accent

#C047E1

background

#F9F9FD

surface

#F1F1FB

border

#CBCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516CD0

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

Preview Lab → · Contrast checker → · Palette generator →