#517FF0#517FF0

#517FF0 is a light, vivid blue. Relative luminance 0.232; OKLCH L 62.2% C 0.177 H 265.0°. Best body text is #000000 at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#517FF0
RGB	rgb(81, 127, 240)
HSL	hsl(223, 84%, 63%)
HSV	hsv(223, 66%, 94%)
CMYK	cmyk(66.3%, 47.1%, 0%, 5.9%)
CIE-LAB	lab(55.30, 20.18, -61.59)
CIE-LCH	lch(55.30, 64.81, 288.14°)
OKLab	oklab(62.16% -0.0154 -0.1764)
OKLCH	oklch(62.16% 0.177 265)
XYZ	xyz(26.7054, 23.2168, 85.4951)
Luminance	0.2322 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517FF0 #F0C251

analogous

#51CEF0 #517FF0 #7351F0

triadic

#517FF0 #F0517F #7FF051

tetradic

#517FF0 #F051CE #F0C251 #51F073

square

#517FF0 #F051CE #F0C251 #51F073

split-complementary

#517FF0 #F07351 #CEF051

monochromatic

#1040B7 #1956EB #517FF0 #89A8F5 #C2D2FA

Accessibility & contrast

On white

3.72

#517FF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.64

#517FF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517FF0

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517FF0	#FFFFFF	#000000	##000000
##517FF0	1.00	3.72	5.64	5.64
#FFFFFF	3.72	1.00	21.00	21.00
#000000	5.64	21.00	1.00	1.00
##000000	5.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#448CF4

Deuteranopia (green-blind)

#207EEE

Tritanopia (blue-blind)

#0099AC

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #517ff0;
/* rgb */ color: rgb(81, 127, 240);
/* oklch */ color: oklch(62.2% 0.177 265.0);

Tailwind

colors: {
  custom: {
    50: '#92a3f6',
    500: '#517ff0',
    950: '#000000',
  },
}

SCSS

$custom: #517ff0;
$custom-light: #92a3f6;
$custom-dark: #000000;

JSON

{
  "hex": "#517ff0",
  "rgb": {
    "r": 81,
    "g": 127,
    "b": 240
  },
  "hsl": {
    "h": 222.642,
    "s": 84.127,
    "l": 62.941
  },
  "oklch": {
    "l": 0.62164,
    "c": 0.17709,
    "h": 265
  },
  "luminance": 0.23219
}

Semantic roles & 50–950 ramp

primary

#517FF0

secondary

#EBDAB2

accent

#A105E1

background

#F9FAFF

surface

#F2F3FE

border

#CCCDD6

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #517FF0

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

Preview Lab → · Contrast checker → · Palette generator →