#516EC1#516EC1

#516EC1 is a mid, vivid blue. Relative luminance 0.168; OKLCH L 55.6% C 0.133 H 267.5°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#516EC1
RGB	rgb(81, 110, 193)
HSL	hsl(224, 47%, 54%)
HSV	hsv(224, 58%, 76%)
CMYK	cmyk(58%, 43%, 0%, 24.3%)
CIE-LAB	lab(47.94, 14.63, -46.78)
CIE-LCH	lch(47.94, 49.01, 287.36°)
OKLab	oklab(55.64% -0.0059 -0.1331)
OKLCH	oklch(55.64% 0.133 267.5)
XYZ	xyz(18.5917, 16.7500, 52.6951)
Luminance	0.1675 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516EC1 #C1A451

analogous

#51A6C1 #516EC1 #6C51C1

triadic

#516EC1 #C1516E #6EC151

tetradic

#516EC1 #C151A6 #C1A451 #51C16C

square

#516EC1 #C151A6 #C1A451 #51C16C

split-complementary

#516EC1 #C16C51 #A6C151

monochromatic

#283A70 #38529D #516EC1 #7E94D1 #ABB9E1

Accessibility & contrast

On white

4.83

#516EC1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#516EC1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516EC1

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516EC1	#FFFFFF	#000000	##FFFFFF
##516EC1	1.00	4.83	4.35	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4977C4

Deuteranopia (green-blind)

#3A6DBF

Tritanopia (blue-blind)

#00808E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #516ec1;
/* rgb */ color: rgb(81, 110, 193);
/* oklch */ color: oklch(55.6% 0.133 267.5);

Tailwind

colors: {
  custom: {
    50: '#8b97d4',
    500: '#516ec1',
    950: '#000000',
  },
}

SCSS

$custom: #516ec1;
$custom-light: #8b97d4;
$custom-dark: #000000;

JSON

{
  "hex": "#516ec1",
  "rgb": {
    "r": 81,
    "g": 110,
    "b": 193
  },
  "hsl": {
    "h": 224.464,
    "s": 47.458,
    "l": 53.725
  },
  "oklch": {
    "l": 0.55639,
    "c": 0.13324,
    "h": 267.5
  },
  "luminance": 0.16751
}

Semantic roles & 50–950 ramp

primary

#516EC1

secondary

#CFC29F

accent

#B451D7

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0D0D14

muted

#7D7E83

Preview Lab

Preview with #516EC1

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

Preview Lab → · Contrast checker → · Palette generator →