#517DF2#517DF2

#517DF2 is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.9% C 0.182 H 265.8°. Best body text is #000000 at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#517DF2
RGB	rgb(81, 125, 242)
HSL	hsl(224, 86%, 63%)
HSV	hsv(224, 67%, 95%)
CMYK	cmyk(66.5%, 48.3%, 0%, 5.1%)
CIE-LAB	lab(54.89, 22.09, -63.35)
CIE-LCH	lch(54.89, 67.09, 289.23°)
OKLab	oklab(61.9% -0.0133 -0.1816)
OKLCH	oklch(61.9% 0.182 265.8)
XYZ	xyz(26.7484, 22.8248, 86.9832)
Luminance	0.2283 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517DF2 #F2C651

analogous

#51CEF2 #517DF2 #7551F2

triadic

#517DF2 #F2517D #7DF251

tetradic

#517DF2 #F251CE #F2C651 #51F275

square

#517DF2 #F251CE #F2C651 #51F275

split-complementary

#517DF2 #F27551 #CEF251

monochromatic

#0E3DBB #1852EE #517DF2 #8AA8F6 #C3D2FB

Accessibility & contrast

On white

3.77

#517DF2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.57

#517DF2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517DF2

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517DF2	#FFFFFF	#000000	##000000
##517DF2	1.00	3.77	5.57	5.57
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.57	21.00	1.00	1.00
##000000	5.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D8BF6

Deuteranopia (green-blind)

#0E7CF0

Tritanopia (blue-blind)

#0098AC

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #517df2;
/* rgb */ color: rgb(81, 125, 242);
/* oklch */ color: oklch(61.9% 0.182 265.8);

Tailwind

colors: {
  custom: {
    50: '#92a2f7',
    500: '#517df2',
    950: '#000000',
  },
}

SCSS

$custom: #517df2;
$custom-light: #92a2f7;
$custom-dark: #000000;

JSON

{
  "hex": "#517df2",
  "rgb": {
    "r": 81,
    "g": 125,
    "b": 242
  },
  "hsl": {
    "h": 223.602,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.61896,
    "c": 0.18212,
    "h": 265.8
  },
  "luminance": 0.22827
}

Semantic roles & 50–950 ramp

primary

#517DF2

secondary

#ECDCB3

accent

#A503E3

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #517DF2

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

Preview Lab → · Contrast checker → · Palette generator →