#516DDA#516DDA

#516DDA is a mid, vivid blue. Relative luminance 0.177; OKLCH L 57.1% C 0.169 H 269.5°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#516DDA
RGB	rgb(81, 109, 218)
HSL	hsl(228, 65%, 59%)
HSV	hsv(228, 63%, 85%)
CMYK	cmyk(62.8%, 50%, 0%, 14.5%)
CIE-LAB	lab(49.19, 23.73, -59.07)
CIE-LCH	lch(49.19, 63.66, 291.89°)
OKLab	oklab(57.08% -0.0013 -0.1693)
OKLCH	oklch(57.08% 0.169 269.5)
XYZ	xyz(21.5126, 17.7467, 68.6078)
Luminance	0.1775 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516DDA #DABE51

analogous

#51B1DA #516DDA #7951DA

triadic

#516DDA #DA516D #6DDA51

tetradic

#516DDA #DA51B1 #DABE51 #51DA79

square

#516DDA #DA51B1 #DABE51 #51DA79

split-complementary

#516DDA #DA7951 #B1DA51

monochromatic

#1F3692 #2A49C4 #516DDA #8397E5 #B6C2EF

Accessibility & contrast

On white

4.62

#516DDA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#516DDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #516DDA

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516DDA	#FFFFFF	#000000	##FFFFFF
##516DDA	1.00	4.62	4.55	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#307BDE

Deuteranopia (green-blind)

#076FD8

Tritanopia (blue-blind)

#008699

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #516dda;
/* rgb */ color: rgb(81, 109, 218);
/* oklch */ color: oklch(57.1% 0.169 269.5);

Tailwind

colors: {
  custom: {
    50: '#8f96e6',
    500: '#516dda',
    950: '#000000',
  },
}

SCSS

$custom: #516dda;
$custom-light: #8f96e6;
$custom-dark: #000000;

JSON

{
  "hex": "#516dda",
  "rgb": {
    "r": 81,
    "g": 109,
    "b": 218
  },
  "hsl": {
    "h": 227.737,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.57075,
    "c": 0.16927,
    "h": 269.5
  },
  "luminance": 0.17749
}

Semantic roles & 50–950 ramp

primary

#516DDA

secondary

#DED3A8

accent

#C640E8

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #516DDA

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

Preview Lab → · Contrast checker → · Palette generator →