#516BDE#516BDE

#516BDE is a mid, vivid blue. Relative luminance 0.175; OKLCH L 57.0% C 0.177 H 270.3°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#516BDE
RGB	rgb(81, 107, 222)
HSL	hsl(229, 68%, 59%)
HSV	hsv(229, 64%, 87%)
CMYK	cmyk(63.5%, 51.8%, 0%, 12.9%)
CIE-LAB	lab(48.93, 26.34, -61.75)
CIE-LCH	lch(48.93, 67.13, 293.10°)
OKLab	oklab(56.96% 0.0009 -0.1772)
OKLCH	oklch(56.96% 0.177 270.3)
XYZ	xyz(21.8314, 17.5367, 71.3275)
Luminance	0.1754 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516BDE #DEC451

analogous

#51B2DE #516BDE #7E51DE

triadic

#516BDE #DE516B #6BDE51

tetradic

#516BDE #DE51B2 #DEC451 #51DE7E

square

#516BDE #DE51B2 #DEC451 #51DE7E

split-complementary

#516BDE #DE7E51 #B2DE51

monochromatic

#1D3398 #2745CB #516BDE #8497E8 #B8C3F2

Accessibility & contrast

On white

4.66

#516BDE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#516BDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #516BDE

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516BDE	#FFFFFF	#000000	##FFFFFF
##516BDE	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#247BE2

Deuteranopia (green-blind)

#006EDC

Tritanopia (blue-blind)

#00869A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #516bde;
/* rgb */ color: rgb(81, 107, 222);
/* oklch */ color: oklch(57.0% 0.177 270.3);

Tailwind

colors: {
  custom: {
    50: '#8f95e9',
    500: '#516bde',
    950: '#000000',
  },
}

SCSS

$custom: #516bde;
$custom-light: #8f95e9;
$custom-dark: #000000;

JSON

{
  "hex": "#516bde",
  "rgb": {
    "r": 81,
    "g": 107,
    "b": 222
  },
  "hsl": {
    "h": 228.936,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.56963,
    "c": 0.17717,
    "h": 270.3
  },
  "luminance": 0.17539
}

Semantic roles & 50–950 ramp

primary

#516BDE

secondary

#E1D7AA

accent

#CB3DEB

background

#F9F9FE

surface

#F2F1FD

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #516BDE

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

Preview Lab → · Contrast checker → · Palette generator →