#516DCF#516DCF

#516DCF is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.3% C 0.154 H 269.0°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#516DCF
RGB	rgb(81, 109, 207)
HSL	hsl(227, 57%, 56%)
HSV	hsv(227, 61%, 81%)
CMYK	cmyk(60.9%, 47.3%, 0%, 18.8%)
CIE-LAB	lab(48.50, 19.98, -53.92)
CIE-LCH	lch(48.50, 57.50, 290.33°)
OKLab	oklab(56.33% -0.0026 -0.1541)
OKLCH	oklch(56.33% 0.154 269)
XYZ	xyz(20.1207, 17.1899, 61.2771)
Luminance	0.1719 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516DCF #CFB351

analogous

#51ACCF #516DCF #7451CF

triadic

#516DCF #CF516D #6DCF51

tetradic

#516DCF #CF51AC #CFB351 #51CF74

square

#516DCF #CF51AC #CFB351 #51CF74

split-complementary

#516DCF #CF7451 #ACCF51

monochromatic

#243982 #314EB2 #516DCF #8195DC #B1BDE9

Accessibility & contrast

On white

4.73

#516DCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#516DCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516DCF

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516DCF	#FFFFFF	#000000	##FFFFFF
##516DCF	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C79D3

Deuteranopia (green-blind)

#266ECD

Tritanopia (blue-blind)

#008394

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #516dcf;
/* rgb */ color: rgb(81, 109, 207);
/* oklch */ color: oklch(56.3% 0.154 269.0);

Tailwind

colors: {
  custom: {
    50: '#8d96de',
    500: '#516dcf',
    950: '#000000',
  },
}

SCSS

$custom: #516dcf;
$custom-light: #8d96de;
$custom-dark: #000000;

JSON

{
  "hex": "#516dcf",
  "rgb": {
    "r": 81,
    "g": 109,
    "b": 207
  },
  "hsl": {
    "h": 226.667,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.5633,
    "c": 0.15413,
    "h": 269
  },
  "luminance": 0.17192
}

Semantic roles & 50–950 ramp

primary

#516DCF

secondary

#D8CCA4

accent

#BE48E0

background

#F9F9FD

surface

#F1F1FB

border

#CBCBD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516DCF

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

Preview Lab → · Contrast checker → · Palette generator →