#516FC4#516FC4

#516FC4 is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.0% C 0.136 H 267.3°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#516FC4
RGB	rgb(81, 111, 196)
HSL	hsl(224, 49%, 54%)
HSV	hsv(224, 59%, 77%)
CMYK	cmyk(58.7%, 43.4%, 0%, 23.1%)
CIE-LAB	lab(48.39, 15.01, -47.79)
CIE-LCH	lch(48.39, 50.10, 287.44°)
OKLab	oklab(56.04% -0.0064 -0.1361)
OKLCH	oklch(56.04% 0.136 267.3)
XYZ	xyz(19.0382, 17.1022, 54.5116)
Luminance	0.1710 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516FC4 #C4A651

analogous

#51A9C4 #516FC4 #6D51C4

triadic

#516FC4 #C4516F #6FC451

tetradic

#516FC4 #C451A9 #C4A651 #51C46D

square

#516FC4 #C451A9 #C4A651 #51C46D

split-complementary

#516FC4 #C46D51 #A9C451

monochromatic

#273B73 #3752A1 #516FC4 #7F95D3 #ACBBE3

Accessibility & contrast

On white

4.75

#516FC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#516FC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516FC4

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516FC4	#FFFFFF	#000000	##FFFFFF
##516FC4	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4978C7

Deuteranopia (green-blind)

#396EC2

Tritanopia (blue-blind)

#008290

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #516fc4;
/* rgb */ color: rgb(81, 111, 196);
/* oklch */ color: oklch(56.0% 0.136 267.3);

Tailwind

colors: {
  custom: {
    50: '#8b97d6',
    500: '#516fc4',
    950: '#000000',
  },
}

SCSS

$custom: #516fc4;
$custom-light: #8b97d6;
$custom-dark: #000000;

JSON

{
  "hex": "#516fc4",
  "rgb": {
    "r": 81,
    "g": 111,
    "b": 196
  },
  "hsl": {
    "h": 224.348,
    "s": 49.356,
    "l": 54.314
  },
  "oklch": {
    "l": 0.56036,
    "c": 0.13624,
    "h": 267.3
  },
  "luminance": 0.17104
}

Semantic roles & 50–950 ramp

primary

#516FC4

secondary

#D1C4A0

accent

#B54FD9

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #516FC4

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

Preview Lab → · Contrast checker → · Palette generator →