#516BE1#516BE1

#516BE1 is a mid, vivid blue. Relative luminance 0.177; OKLCH L 57.2% C 0.181 H 270.4°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#516BE1
RGB	rgb(81, 107, 225)
HSL	hsl(229, 71%, 60%)
HSV	hsv(229, 64%, 88%)
CMYK	cmyk(64%, 52.4%, 0%, 11.8%)
CIE-LAB	lab(49.13, 27.37, -63.12)
CIE-LCH	lch(49.13, 68.80, 293.44°)
OKLab	oklab(57.18% 0.0011 -0.1812)
OKLCH	oklch(57.18% 0.181 270.4)
XYZ	xyz(22.2370, 17.6990, 73.4639)
Luminance	0.1770 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516BE1 #E1C751

analogous

#51B3E1 #516BE1 #7F51E1

triadic

#516BE1 #E1516B #6BE151

tetradic

#516BE1 #E151B3 #E1C751 #51E17F

square

#516BE1 #E151B3 #E1C751 #51E17F

split-complementary

#516BE1 #E17F51 #B3E151

monochromatic

#1B329D #2443D1 #516BE1 #8597EA #B9C4F3

Accessibility & contrast

On white

4.63

#516BE1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#516BE1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #516BE1

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516BE1	#FFFFFF	#000000	##FFFFFF
##516BE1	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E7BE5

Deuteranopia (green-blind)

#006FDF

Tritanopia (blue-blind)

#00879C

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #516be1;
/* rgb */ color: rgb(81, 107, 225);
/* oklch */ color: oklch(57.2% 0.181 270.4);

Tailwind

colors: {
  custom: {
    50: '#9095eb',
    500: '#516be1',
    950: '#000000',
  },
}

SCSS

$custom: #516be1;
$custom-light: #9095eb;
$custom-dark: #000000;

JSON

{
  "hex": "#516be1",
  "rgb": {
    "r": 81,
    "g": 107,
    "b": 225
  },
  "hsl": {
    "h": 229.167,
    "s": 70.588,
    "l": 60
  },
  "oklch": {
    "l": 0.57177,
    "c": 0.18121,
    "h": 270.4
  },
  "luminance": 0.17701
}

Semantic roles & 50–950 ramp

primary

#516BE1

secondary

#E3D9AB

accent

#CD3AED

background

#F9F9FE

surface

#F2F1FD

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #516BE1

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

Preview Lab → · Contrast checker → · Palette generator →