#516DDE#516DDE

#516DDE is a mid, vivid blue. Relative luminance 0.180; OKLCH L 57.4% C 0.175 H 269.7°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#516DDE
RGB	rgb(81, 109, 222)
HSL	hsl(228, 68%, 59%)
HSV	hsv(228, 64%, 87%)
CMYK	cmyk(63.5%, 50.9%, 0%, 12.9%)
CIE-LAB	lab(49.45, 25.10, -60.92)
CIE-LCH	lch(49.45, 65.89, 292.39°)
OKLab	oklab(57.35% -0.001 -0.1747)
OKLCH	oklch(57.35% 0.175 269.7)
XYZ	xyz(22.0423, 17.9586, 71.3978)
Luminance	0.1796 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516DDE #DEC251

analogous

#51B4DE #516DDE #7C51DE

triadic

#516DDE #DE516D #6DDE51

tetradic

#516DDE #DE51B4 #DEC251 #51DE7C

square

#516DDE #DE51B4 #DEC251 #51DE7C

split-complementary

#516DDE #DE7C51 #B4DE51

monochromatic

#1D3598 #2747CB #516DDE #8498E8 #B8C3F2

Accessibility & contrast

On white

4.57

#516DDE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#516DDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #516DDE

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516DDE	#FFFFFF	#000000	##000000
##516DDE	1.00	4.57	4.59	4.59
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B7CE2

Deuteranopia (green-blind)

#0070DC

Tritanopia (blue-blind)

#00879B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #516dde;
/* rgb */ color: rgb(81, 109, 222);
/* oklch */ color: oklch(57.4% 0.175 269.7);

Tailwind

colors: {
  custom: {
    50: '#8f96e9',
    500: '#516dde',
    950: '#000000',
  },
}

SCSS

$custom: #516dde;
$custom-light: #8f96e9;
$custom-dark: #000000;

JSON

{
  "hex": "#516dde",
  "rgb": {
    "r": 81,
    "g": 109,
    "b": 222
  },
  "hsl": {
    "h": 228.085,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.57353,
    "c": 0.17469,
    "h": 269.7
  },
  "luminance": 0.17961
}

Semantic roles & 50–950 ramp

primary

#516DDE

secondary

#E1D6AA

accent

#C83DEB

background

#F9F9FE

surface

#F2F1FD

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #516DDE

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

Preview Lab → · Contrast checker → · Palette generator →