#516CB5#516CB5

#516CB5 is a mid, moderate blue. Relative luminance 0.158; OKLCH L 54.5% C 0.119 H 267.1°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#516CB5
RGB	rgb(81, 108, 181)
HSL	hsl(224, 40%, 51%)
HSV	hsv(224, 55%, 71%)
CMYK	cmyk(55.2%, 40.3%, 0%, 29%)
CIE-LAB	lab(46.72, 11.87, -41.77)
CIE-LCH	lch(46.72, 43.43, 285.86°)
OKLab	oklab(54.48% -0.006 -0.1185)
OKLCH	oklch(54.48% 0.119 267.1)
XYZ	xyz(17.0936, 15.8094, 45.8579)
Luminance	0.1581 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516CB5 #B59A51

analogous

#519EB5 #516CB5 #6851B5

triadic

#516CB5 #B5516C #6CB551

tetradic

#516CB5 #B5519E #B59A51 #51B568

square

#516CB5 #B5519E #B59A51 #51B568

split-complementary

#516CB5 #B56851 #9EB551

monochromatic

#2A3962 #3C528D #516CB5 #7C90C7 #A7B5DA

Accessibility & contrast

On white

5.05

#516CB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#516CB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516CB5

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516CB5	#FFFFFF	#000000	##FFFFFF
##516CB5	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E74B8

Deuteranopia (green-blind)

#426BB3

Tritanopia (blue-blind)

#187C88

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #516cb5;
/* rgb */ color: rgb(81, 108, 181);
/* oklch */ color: oklch(54.5% 0.119 267.1);

Tailwind

colors: {
  custom: {
    50: '#8995cb',
    500: '#516cb5',
    950: '#000000',
  },
}

SCSS

$custom: #516cb5;
$custom-light: #8995cb;
$custom-dark: #000000;

JSON

{
  "hex": "#516cb5",
  "rgb": {
    "r": 81,
    "g": 108,
    "b": 181
  },
  "hsl": {
    "h": 223.8,
    "s": 40.323,
    "l": 51.373
  },
  "oklch": {
    "l": 0.54484,
    "c": 0.11862,
    "h": 267.1
  },
  "luminance": 0.15811
}

Semantic roles & 50–950 ramp

primary

#516CB5

secondary

#C7BB9B

accent

#B058D0

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #516CB5

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

Preview Lab → · Contrast checker → · Palette generator →