#516DB3#516DB3

#516DB3 is a mid, moderate blue. Relative luminance 0.159; OKLCH L 54.6% C 0.115 H 266.2°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#516DB3
RGB	rgb(81, 109, 179)
HSL	hsl(223, 39%, 51%)
HSV	hsv(223, 55%, 70%)
CMYK	cmyk(54.7%, 39.1%, 0%, 29.8%)
CIE-LAB	lab(46.90, 10.59, -40.34)
CIE-LCH	lch(46.90, 41.70, 284.71°)
OKLab	oklab(54.58% -0.0075 -0.1143)
OKLCH	oklch(54.58% 0.115 266.2)
XYZ	xyz(16.9959, 15.9400, 44.8202)
Luminance	0.1594 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516DB3 #B39751

analogous

#519EB3 #516DB3 #6651B3

triadic

#516DB3 #B3516D #6DB351

tetradic

#516DB3 #B3519E #B39751 #51B366

square

#516DB3 #B3519E #B39751 #51B366

split-complementary

#516DB3 #B36651 #9EB351

monochromatic

#2A3960 #3C538A #516DB3 #7C91C6 #A6B4D8

Accessibility & contrast

On white

5.01

#516DB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#516DB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516DB3

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516DB3	#FFFFFF	#000000	##FFFFFF
##516DB3	1.00	5.01	4.19	5.01
#FFFFFF	5.01	1.00	21.00	1.00
#000000	4.19	21.00	1.00	21.00
##FFFFFF	5.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5074B6

Deuteranopia (green-blind)

#456BB1

Tritanopia (blue-blind)

#1B7C87

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #516db3;
/* rgb */ color: rgb(81, 109, 179);
/* oklch */ color: oklch(54.6% 0.115 266.2);

Tailwind

colors: {
  custom: {
    50: '#8996ca',
    500: '#516db3',
    950: '#000000',
  },
}

SCSS

$custom: #516db3;
$custom-light: #8996ca;
$custom-dark: #000000;

JSON

{
  "hex": "#516db3",
  "rgb": {
    "r": 81,
    "g": 109,
    "b": 179
  },
  "hsl": {
    "h": 222.857,
    "s": 39.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.54582,
    "c": 0.11451,
    "h": 266.2
  },
  "luminance": 0.15941
}

Semantic roles & 50–950 ramp

primary

#516DB3

secondary

#C6B99A

accent

#AD59CF

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #516DB3

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

Preview Lab → · Contrast checker → · Palette generator →