#516DAB#516DAB

#516DAB is a mid, moderate blue. Relative luminance 0.156; OKLCH L 54.1% C 0.103 H 264.8°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#516DAB
RGB	rgb(81, 109, 171)
HSL	hsl(221, 36%, 49%)
HSV	hsv(221, 53%, 67%)
CMYK	cmyk(52.6%, 36.3%, 0%, 32.9%)
CIE-LAB	lab(46.48, 7.97, -36.33)
CIE-LCH	lch(46.48, 37.19, 282.38°)
OKLab	oklab(54.12% -0.0094 -0.1025)
OKLCH	oklch(54.12% 0.103 264.8)
XYZ	xyz(16.2102, 15.6257, 40.6820)
Luminance	0.1563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516DAB #AB8F51

analogous

#519AAB #516DAB #6251AB

triadic

#516DAB #AB516D #6DAB51

tetradic

#516DAB #AB519A #AB8F51 #51AB62

square

#516DAB #AB519A #AB8F51 #51AB62

split-complementary

#516DAB #AB6251 #9AAB51

monochromatic

#2A3858 #3D5381 #516DAB #798FC0 #A3B2D3

Accessibility & contrast

On white

5.09

#516DAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#516DAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516DAB

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516DAB	#FFFFFF	#000000	##FFFFFF
##516DAB	1.00	5.09	4.13	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5573AE

Deuteranopia (green-blind)

#4A6AAA

Tritanopia (blue-blind)

#257A84

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #516dab;
/* rgb */ color: rgb(81, 109, 171);
/* oklch */ color: oklch(54.1% 0.103 264.8);

Tailwind

colors: {
  custom: {
    50: '#8896c4',
    500: '#516dab',
    950: '#000000',
  },
}

SCSS

$custom: #516dab;
$custom-light: #8896c4;
$custom-dark: #000000;

JSON

{
  "hex": "#516dab",
  "rgb": {
    "r": 81,
    "g": 109,
    "b": 171
  },
  "hsl": {
    "h": 221.333,
    "s": 35.714,
    "l": 49.412
  },
  "oklch": {
    "l": 0.54124,
    "c": 0.10298,
    "h": 264.8
  },
  "luminance": 0.15627
}

Semantic roles & 50–950 ramp

primary

#516DAB

secondary

#C1B497

accent

#A95CCC

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D12

muted

#7D7E81

Preview Lab

Preview with #516DAB

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

Preview Lab → · Contrast checker → · Palette generator →