#516FD1#516FD1

#516FD1 is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.9% C 0.154 H 268.4°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#516FD1
RGB	rgb(81, 111, 209)
HSL	hsl(226, 58%, 57%)
HSV	hsv(226, 61%, 82%)
CMYK	cmyk(61.2%, 46.9%, 0%, 18%)
CIE-LAB	lab(49.15, 19.42, -54.01)
CIE-LCH	lch(49.15, 57.39, 289.77°)
OKLab	oklab(56.87% -0.0044 -0.1543)
OKLCH	oklch(56.87% 0.154 268.4)
XYZ	xyz(20.5825, 17.7199, 62.6449)
Luminance	0.1772 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516FD1 #D1B351

analogous

#51AFD1 #516FD1 #7351D1

triadic

#516FD1 #D1516F #6FD151

tetradic

#516FD1 #D151AF #D1B351 #51D173

square

#516FD1 #D151AF #D1B351 #51D173

split-complementary

#516FD1 #D17351 #AFD151

monochromatic

#233A85 #304FB5 #516FD1 #8197DE #B2BFEB

Accessibility & contrast

On white

4.62

#516FD1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#516FD1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #516FD1

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516FD1	#FFFFFF	#000000	##FFFFFF
##516FD1	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F7BD5

Deuteranopia (green-blind)

#286FCF

Tritanopia (blue-blind)

#008596

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #516fd1;
/* rgb */ color: rgb(81, 111, 209);
/* oklch */ color: oklch(56.9% 0.154 268.4);

Tailwind

colors: {
  custom: {
    50: '#8d97e0',
    500: '#516fd1',
    950: '#000000',
  },
}

SCSS

$custom: #516fd1;
$custom-light: #8d97e0;
$custom-dark: #000000;

JSON

{
  "hex": "#516fd1",
  "rgb": {
    "r": 81,
    "g": 111,
    "b": 209
  },
  "hsl": {
    "h": 225.938,
    "s": 58.182,
    "l": 56.863
  },
  "oklch": {
    "l": 0.56869,
    "c": 0.1544,
    "h": 268.4
  },
  "luminance": 0.17722
}

Semantic roles & 50–950 ramp

primary

#516FD1

secondary

#D9CDA5

accent

#BD46E1

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #516FD1

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

Preview Lab → · Contrast checker → · Palette generator →