#516DB4#516DB4

#516DB4 is a mid, moderate blue. Relative luminance 0.160; OKLCH L 54.6% C 0.116 H 266.4°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#516DB4
RGB	rgb(81, 109, 180)
HSL	hsl(223, 40%, 51%)
HSV	hsv(223, 55%, 71%)
CMYK	cmyk(55%, 39.4%, 0%, 29.4%)
CIE-LAB	lab(46.95, 10.92, -40.83)
CIE-LCH	lch(46.95, 42.27, 284.97°)
OKLab	oklab(54.64% -0.0073 -0.1157)
OKLCH	oklch(54.64% 0.116 266.4)
XYZ	xyz(17.0974, 15.9806, 45.3548)
Luminance	0.1598 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516DB4 #B49851

analogous

#519EB4 #516DB4 #6651B4

triadic

#516DB4 #B4516D #6DB451

tetradic

#516DB4 #B4519E #B49851 #51B466

square

#516DB4 #B4519E #B49851 #51B466

split-complementary

#516DB4 #B46651 #9EB451

monochromatic

#2A3961 #3C538C #516DB4 #7C91C6 #A7B5D9

Accessibility & contrast

On white

5.00

#516DB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#516DB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516DB4

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516DB4	#FFFFFF	#000000	##FFFFFF
##516DB4	1.00	5.00	4.20	5.00
#FFFFFF	5.00	1.00	21.00	1.00
#000000	4.20	21.00	1.00	21.00
##FFFFFF	5.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5074B7

Deuteranopia (green-blind)

#446BB2

Tritanopia (blue-blind)

#197C88

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #516db4;
/* rgb */ color: rgb(81, 109, 180);
/* oklch */ color: oklch(54.6% 0.116 266.4);

Tailwind

colors: {
  custom: {
    50: '#8996cb',
    500: '#516db4',
    950: '#000000',
  },
}

SCSS

$custom: #516db4;
$custom-light: #8996cb;
$custom-dark: #000000;

JSON

{
  "hex": "#516db4",
  "rgb": {
    "r": 81,
    "g": 109,
    "b": 180
  },
  "hsl": {
    "h": 223.03,
    "s": 39.759,
    "l": 51.176
  },
  "oklch": {
    "l": 0.5464,
    "c": 0.11594,
    "h": 266.4
  },
  "luminance": 0.15982
}

Semantic roles & 50–950 ramp

primary

#516DB4

secondary

#C6BA9B

accent

#AE58D0

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #516DB4

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

Preview Lab → · Contrast checker → · Palette generator →