#516CB0#516CB0

#516CB0 is a mid, moderate blue. Relative luminance 0.156; OKLCH L 54.2% C 0.111 H 266.4°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#516CB0
RGB	rgb(81, 108, 176)
HSL	hsl(223, 38%, 50%)
HSV	hsv(223, 54%, 69%)
CMYK	cmyk(54%, 38.6%, 0%, 31%)
CIE-LAB	lab(46.46, 10.22, -39.28)
CIE-LCH	lch(46.46, 40.59, 284.59°)
OKLab	oklab(54.19% -0.007 -0.1112)
OKLCH	oklch(54.19% 0.111 266.4)
XYZ	xyz(16.5898, 15.6078, 43.2043)
Luminance	0.1561 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516CB0 #B09551

analogous

#519BB0 #516CB0 #6551B0

triadic

#516CB0 #B0516C #6CB051

tetradic

#516CB0 #B0519B #B09551 #51B065

square

#516CB0 #B0519B #B09551 #51B065

split-complementary

#516CB0 #B06551 #9BB051

monochromatic

#2A385D #3D5287 #516CB0 #7B90C3 #A5B3D6

Accessibility & contrast

On white

5.09

#516CB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#516CB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516CB0

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516CB0	#FFFFFF	#000000	##FFFFFF
##516CB0	1.00	5.09	4.12	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5173B3

Deuteranopia (green-blind)

#456AAF

Tritanopia (blue-blind)

#207B85

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #516cb0;
/* rgb */ color: rgb(81, 108, 176);
/* oklch */ color: oklch(54.2% 0.111 266.4);

Tailwind

colors: {
  custom: {
    50: '#8895c8',
    500: '#516cb0',
    950: '#000000',
  },
}

SCSS

$custom: #516cb0;
$custom-light: #8895c8;
$custom-dark: #000000;

JSON

{
  "hex": "#516cb0",
  "rgb": {
    "r": 81,
    "g": 108,
    "b": 176
  },
  "hsl": {
    "h": 222.947,
    "s": 37.549,
    "l": 50.392
  },
  "oklch": {
    "l": 0.5419,
    "c": 0.11142,
    "h": 266.4
  },
  "luminance": 0.15609
}

Semantic roles & 50–950 ramp

primary

#516CB0

secondary

#C4B899

accent

#AD5ACE

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #516CB0

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

Preview Lab → · Contrast checker → · Palette generator →