#516CB3#516CB3

#516CB3 is a mid, moderate blue. Relative luminance 0.157; OKLCH L 54.4% C 0.116 H 266.8°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#516CB3
RGB	rgb(81, 108, 179)
HSL	hsl(223, 39%, 51%)
HSV	hsv(223, 55%, 70%)
CMYK	cmyk(54.7%, 39.7%, 0%, 29.8%)
CIE-LAB	lab(46.62, 11.21, -40.78)
CIE-LCH	lch(46.62, 42.29, 285.37°)
OKLab	oklab(54.36% -0.0064 -0.1156)
OKLCH	oklch(54.36% 0.116 266.8)
XYZ	xyz(16.8899, 15.7279, 44.7848)
Luminance	0.1573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516CB3 #B39851

analogous

#519DB3 #516CB3 #6751B3

triadic

#516CB3 #B3516C #6CB351

tetradic

#516CB3 #B3519D #B39851 #51B367

square

#516CB3 #B3519D #B39851 #51B367

split-complementary

#516CB3 #B36751 #9DB351

monochromatic

#2A3960 #3C528A #516CB3 #7C90C6 #A6B4D8

Accessibility & contrast

On white

5.07

#516CB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#516CB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516CB3

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516CB3	#FFFFFF	#000000	##FFFFFF
##516CB3	1.00	5.07	4.15	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F73B6

Deuteranopia (green-blind)

#436AB1

Tritanopia (blue-blind)

#1B7B87

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #516cb3;
/* rgb */ color: rgb(81, 108, 179);
/* oklch */ color: oklch(54.4% 0.116 266.8);

Tailwind

colors: {
  custom: {
    50: '#8995ca',
    500: '#516cb3',
    950: '#000000',
  },
}

SCSS

$custom: #516cb3;
$custom-light: #8995ca;
$custom-dark: #000000;

JSON

{
  "hex": "#516cb3",
  "rgb": {
    "r": 81,
    "g": 108,
    "b": 179
  },
  "hsl": {
    "h": 223.469,
    "s": 39.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.54365,
    "c": 0.11575,
    "h": 266.8
  },
  "luminance": 0.15729
}

Semantic roles & 50–950 ramp

primary

#516CB3

secondary

#C6BA9A

accent

#AE59CF

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #516CB3

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

Preview Lab → · Contrast checker → · Palette generator →