#516BB1#516BB1

#516BB1 is a mid, moderate blue. Relative luminance 0.154; OKLCH L 54.0% C 0.114 H 267.2°. Best body text is #FFFFFF at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#516BB1
RGB	rgb(81, 107, 177)
HSL	hsl(224, 38%, 51%)
HSV	hsv(224, 54%, 69%)
CMYK	cmyk(54.2%, 39.5%, 0%, 30.6%)
CIE-LAB	lab(46.23, 11.17, -40.23)
CIE-LCH	lch(46.23, 41.75, 285.52°)
OKLab	oklab(54.03% -0.0056 -0.114)
OKLCH	oklch(54.03% 0.114 267.2)
XYZ	xyz(16.5842, 15.4378, 43.6923)
Luminance	0.1544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516BB1 #B19751

analogous

#519BB1 #516BB1 #6751B1

triadic

#516BB1 #B1516B #6BB151

tetradic

#516BB1 #B1519B #B19751 #51B167

square

#516BB1 #B1519B #B19751 #51B167

split-complementary

#516BB1 #B16751 #9BB151

monochromatic

#2A385E #3D5188 #516BB1 #7B8FC4 #A6B3D7

Accessibility & contrast

On white

5.14

#516BB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#516BB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516BB1

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516BB1	#FFFFFF	#000000	##FFFFFF
##516BB1	1.00	5.14	4.09	5.14
#FFFFFF	5.14	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F72B4

Deuteranopia (green-blind)

#436AAF

Tritanopia (blue-blind)

#1F7A85

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #516bb1;
/* rgb */ color: rgb(81, 107, 177);
/* oklch */ color: oklch(54.0% 0.114 267.2);

Tailwind

colors: {
  custom: {
    50: '#8895c8',
    500: '#516bb1',
    950: '#000000',
  },
}

SCSS

$custom: #516bb1;
$custom-light: #8895c8;
$custom-dark: #000000;

JSON

{
  "hex": "#516bb1",
  "rgb": {
    "r": 81,
    "g": 107,
    "b": 177
  },
  "hsl": {
    "h": 223.75,
    "s": 38.095,
    "l": 50.588
  },
  "oklch": {
    "l": 0.54032,
    "c": 0.1141,
    "h": 267.2
  },
  "luminance": 0.15439
}

Semantic roles & 50–950 ramp

primary

#516BB1

secondary

#C4B99A

accent

#AF5ACE

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #516BB1

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

Preview Lab → · Contrast checker → · Palette generator →