#517EF2#517EF2

#517EF2 is a light, vivid blue. Relative luminance 0.231; OKLCH L 62.1% C 0.181 H 265.5°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#517EF2
RGB	rgb(81, 126, 242)
HSL	hsl(223, 86%, 63%)
HSV	hsv(223, 67%, 95%)
CMYK	cmyk(66.5%, 47.9%, 0%, 5.1%)
CIE-LAB	lab(55.15, 21.48, -62.93)
CIE-LCH	lch(55.15, 66.49, 288.85°)
OKLab	oklab(62.1% -0.0142 -0.1804)
OKLCH	oklch(62.1% 0.181 265.5)
XYZ	xyz(26.8756, 23.0792, 87.0256)
Luminance	0.2308 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517EF2 #F2C551

analogous

#51CEF2 #517EF2 #7451F2

triadic

#517EF2 #F2517E #7EF251

tetradic

#517EF2 #F251CE #F2C551 #51F274

square

#517EF2 #F251CE #F2C551 #51F274

split-complementary

#517EF2 #F27451 #CEF251

monochromatic

#0E3EBB #1854EE #517EF2 #8AA8F6 #C3D2FB

Accessibility & contrast

On white

3.74

#517EF2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.62

#517EF2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517EF2

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517EF2	#FFFFFF	#000000	##000000
##517EF2	1.00	3.74	5.62	5.62
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.62	21.00	1.00	1.00
##000000	5.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F8CF6

Deuteranopia (green-blind)

#157DF0

Tritanopia (blue-blind)

#0099AC

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #517ef2;
/* rgb */ color: rgb(81, 126, 242);
/* oklch */ color: oklch(62.1% 0.181 265.5);

Tailwind

colors: {
  custom: {
    50: '#92a2f7',
    500: '#517ef2',
    950: '#000000',
  },
}

SCSS

$custom: #517ef2;
$custom-light: #92a2f7;
$custom-dark: #000000;

JSON

{
  "hex": "#517ef2",
  "rgb": {
    "r": 81,
    "g": 126,
    "b": 242
  },
  "hsl": {
    "h": 223.23,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.62096,
    "c": 0.18093,
    "h": 265.5
  },
  "luminance": 0.23082
}

Semantic roles & 50–950 ramp

primary

#517EF2

secondary

#ECDCB3

accent

#A403E3

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #517EF2

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

Preview Lab → · Contrast checker → · Palette generator →