#516DC3#516DC3

#516DC3 is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.6% C 0.137 H 268.2°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#516DC3
RGB	rgb(81, 109, 195)
HSL	hsl(225, 49%, 54%)
HSV	hsv(225, 58%, 76%)
CMYK	cmyk(58.5%, 44.1%, 0%, 23.5%)
CIE-LAB	lab(47.78, 15.92, -48.18)
CIE-LCH	lch(47.78, 50.74, 288.29°)
OKLab	oklab(55.55% -0.0044 -0.1372)
OKLCH	oklch(55.55% 0.137 268.2)
XYZ	xyz(18.7090, 16.6252, 53.8423)
Luminance	0.1663 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516DC3 #C3A751

analogous

#51A6C3 #516DC3 #6E51C3

triadic

#516DC3 #C3516D #6DC351

tetradic

#516DC3 #C351A6 #C3A751 #51C36E

square

#516DC3 #C351A6 #C3A751 #51C36E

split-complementary

#516DC3 #C36E51 #A6C351

monochromatic

#273A72 #3751A0 #516DC3 #7F93D3 #ACB9E2

Accessibility & contrast

On white

4.86

#516DC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#516DC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516DC3

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516DC3	#FFFFFF	#000000	##FFFFFF
##516DC3	1.00	4.86	4.33	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4677C6

Deuteranopia (green-blind)

#366DC1

Tritanopia (blue-blind)

#00808E

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #516dc3;
/* rgb */ color: rgb(81, 109, 195);
/* oklch */ color: oklch(55.6% 0.137 268.2);

Tailwind

colors: {
  custom: {
    50: '#8b96d6',
    500: '#516dc3',
    950: '#000000',
  },
}

SCSS

$custom: #516dc3;
$custom-light: #8b96d6;
$custom-dark: #000000;

JSON

{
  "hex": "#516dc3",
  "rgb": {
    "r": 81,
    "g": 109,
    "b": 195
  },
  "hsl": {
    "h": 225.263,
    "s": 48.718,
    "l": 54.118
  },
  "oklch": {
    "l": 0.55554,
    "c": 0.13732,
    "h": 268.2
  },
  "luminance": 0.16627
}

Semantic roles & 50–950 ramp

primary

#516DC3

secondary

#D0C4A0

accent

#B750D8

background

#F9F9FD

surface

#F1F1FA

border

#CBCBD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #516DC3

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

Preview Lab → · Contrast checker → · Palette generator →