#516FC3#516FC3

#516FC3 is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.0% C 0.135 H 267.2°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#516FC3
RGB	rgb(81, 111, 195)
HSL	hsl(224, 49%, 54%)
HSV	hsv(224, 58%, 76%)
CMYK	cmyk(58.5%, 43.1%, 0%, 23.5%)
CIE-LAB	lab(48.33, 14.68, -47.31)
CIE-LCH	lch(48.33, 49.53, 287.23°)
OKLab	oklab(55.97% -0.0066 -0.1347)
OKLCH	oklch(55.97% 0.135 267.2)
XYZ	xyz(18.9248, 17.0568, 53.9142)
Luminance	0.1706 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516FC3 #C3A551

analogous

#51A8C3 #516FC3 #6C51C3

triadic

#516FC3 #C3516F #6FC351

tetradic

#516FC3 #C351A8 #C3A551 #51C36C

square

#516FC3 #C351A8 #C3A551 #51C36C

split-complementary

#516FC3 #C36C51 #A8C351

monochromatic

#273B72 #3753A0 #516FC3 #7F95D3 #ACBAE2

Accessibility & contrast

On white

4.76

#516FC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#516FC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516FC3

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516FC3	#FFFFFF	#000000	##FFFFFF
##516FC3	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)

#4A78C6

Deuteranopia (green-blind)

#3A6EC1

Tritanopia (blue-blind)

#00828F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #516fc3;
/* rgb */ color: rgb(81, 111, 195);
/* oklch */ color: oklch(56.0% 0.135 267.2);

Tailwind

colors: {
  custom: {
    50: '#8b97d5',
    500: '#516fc3',
    950: '#000000',
  },
}

SCSS

$custom: #516fc3;
$custom-light: #8b97d5;
$custom-dark: #000000;

JSON

{
  "hex": "#516fc3",
  "rgb": {
    "r": 81,
    "g": 111,
    "b": 195
  },
  "hsl": {
    "h": 224.211,
    "s": 48.718,
    "l": 54.118
  },
  "oklch": {
    "l": 0.55974,
    "c": 0.13483,
    "h": 267.2
  },
  "luminance": 0.17058
}

Semantic roles & 50–950 ramp

primary

#516FC3

secondary

#D0C3A0

accent

#B450D8

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0D0D14

muted

#7D7E83

Preview Lab

Preview with #516FC3

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

Preview Lab → · Contrast checker → · Palette generator →