#517CE7#517CE7

#517CE7 is a mid, vivid blue. Relative luminance 0.219; OKLCH L 61.0% C 0.169 H 265.3°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#517CE7
RGB	rgb(81, 124, 231)
HSL	hsl(223, 76%, 61%)
HSV	hsv(223, 65%, 91%)
CMYK	cmyk(64.9%, 46.3%, 0%, 9.4%)
CIE-LAB	lab(53.95, 18.92, -58.72)
CIE-LCH	lch(53.95, 61.70, 287.85°)
OKLab	oklab(60.96% -0.0139 -0.168)
OKLCH	oklch(60.96% 0.169 265.3)
XYZ	xyz(25.0198, 21.9318, 78.5005)
Luminance	0.2193 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517CE7 #E7BC51

analogous

#51C7E7 #517CE7 #7151E7

triadic

#517CE7 #E7517C #7CE751

tetradic

#517CE7 #E751C7 #E7BC51 #51E771

square

#517CE7 #E751C7 #E7BC51 #51E771

split-complementary

#517CE7 #E77151 #C7E751

monochromatic

#1740A7 #1E55DC #517CE7 #87A4EE #BDCDF6

Accessibility & contrast

On white

3.90

#517CE7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#517CE7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517CE7

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517CE7	#FFFFFF	#000000	##000000
##517CE7	1.00	3.90	5.39	5.39
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4688EB

Deuteranopia (green-blind)

#287BE5

Tritanopia (blue-blind)

#0095A6

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #517ce7;
/* rgb */ color: rgb(81, 124, 231);
/* oklch */ color: oklch(61.0% 0.169 265.3);

Tailwind

colors: {
  custom: {
    50: '#90a1ef',
    500: '#517ce7',
    950: '#000000',
  },
}

SCSS

$custom: #517ce7;
$custom-light: #90a1ef;
$custom-dark: #000000;

JSON

{
  "hex": "#517ce7",
  "rgb": {
    "r": 81,
    "g": 124,
    "b": 231
  },
  "hsl": {
    "h": 222.8,
    "s": 75.758,
    "l": 61.176
  },
  "oklch": {
    "l": 0.60964,
    "c": 0.16861,
    "h": 265.3
  },
  "luminance": 0.21934
}

Semantic roles & 50–950 ramp

primary

#517CE7

secondary

#E6D6AE

accent

#9E0ED8

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #517CE7

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

Preview Lab → · Contrast checker → · Palette generator →