#516BC7#516BC7

#516BC7 is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.4% C 0.145 H 269.3°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#516BC7
RGB	rgb(81, 107, 199)
HSL	hsl(227, 51%, 55%)
HSV	hsv(227, 59%, 78%)
CMYK	cmyk(59.3%, 46.2%, 0%, 22%)
CIE-LAB	lab(47.48, 18.52, -50.97)
CIE-LCH	lch(47.48, 54.23, 289.97°)
OKLab	oklab(55.4% -0.0017 -0.1455)
OKLCH	oklch(55.4% 0.145 269.3)
XYZ	xyz(18.9564, 16.3867, 56.1858)
Luminance	0.1639 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516BC7 #C7AD51

analogous

#51A6C7 #516BC7 #7251C7

triadic

#516BC7 #C7516B #6BC751

tetradic

#516BC7 #C751A6 #C7AD51 #51C772

square

#516BC7 #C751A6 #C7AD51 #51C772

split-complementary

#516BC7 #C77251 #A6C751

monochromatic

#263877 #354EA6 #516BC7 #7F92D6 #AEBAE5

Accessibility & contrast

On white

4.91

#516BC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#516BC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516BC7

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516BC7	#FFFFFF	#000000	##FFFFFF
##516BC7	1.00	4.91	4.28	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F76CA

Deuteranopia (green-blind)

#2D6CC5

Tritanopia (blue-blind)

#00808F

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #516bc7;
/* rgb */ color: rgb(81, 107, 199);
/* oklch */ color: oklch(55.4% 0.145 269.3);

Tailwind

colors: {
  custom: {
    50: '#8c95d8',
    500: '#516bc7',
    950: '#000000',
  },
}

SCSS

$custom: #516bc7;
$custom-light: #8c95d8;
$custom-dark: #000000;

JSON

{
  "hex": "#516bc7",
  "rgb": {
    "r": 81,
    "g": 107,
    "b": 199
  },
  "hsl": {
    "h": 226.78,
    "s": 51.304,
    "l": 54.902
  },
  "oklch": {
    "l": 0.55396,
    "c": 0.14548,
    "h": 269.3
  },
  "luminance": 0.16388
}

Semantic roles & 50–950 ramp

primary

#516BC7

secondary

#D3C8A1

accent

#BC4DDB

background

#F9F9FD

surface

#F1F1FA

border

#CBCBD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #516BC7

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

Preview Lab → · Contrast checker → · Palette generator →