#517CE3#517CE3

#517CE3 is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.7% C 0.163 H 264.9°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#517CE3
RGB	rgb(81, 124, 227)
HSL	hsl(222, 72%, 60%)
HSV	hsv(222, 64%, 89%)
CMYK	cmyk(64.3%, 45.4%, 0%, 11%)
CIE-LAB	lab(53.72, 17.54, -56.87)
CIE-LCH	lch(53.72, 59.51, 287.14°)
OKLab	oklab(60.71% -0.0145 -0.1626)
OKLCH	oklch(60.71% 0.163 264.9)
XYZ	xyz(24.4613, 21.7084, 75.5592)
Luminance	0.2171 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517CE3 #E3B851

analogous

#51C5E3 #517CE3 #6F51E3

triadic

#517CE3 #E3517C #7CE351

tetradic

#517CE3 #E351C5 #E3B851 #51E36F

square

#517CE3 #E351C5 #E3B851 #51E36F

split-complementary

#517CE3 #E36F51 #C5E351

monochromatic

#1A41A0 #2257D5 #517CE3 #86A4EB #BACBF4

Accessibility & contrast

On white

3.93

#517CE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#517CE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517CE3

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517CE3	#FFFFFF	#000000	##000000
##517CE3	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4987E7

Deuteranopia (green-blind)

#2F7AE1

Tritanopia (blue-blind)

#0094A4

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #517ce3;
/* rgb */ color: rgb(81, 124, 227);
/* oklch */ color: oklch(60.7% 0.163 264.9);

Tailwind

colors: {
  custom: {
    50: '#90a1ec',
    500: '#517ce3',
    950: '#000000',
  },
}

SCSS

$custom: #517ce3;
$custom-light: #90a1ec;
$custom-dark: #000000;

JSON

{
  "hex": "#517ce3",
  "rgb": {
    "r": 81,
    "g": 124,
    "b": 227
  },
  "hsl": {
    "h": 222.329,
    "s": 72.277,
    "l": 60.392
  },
  "oklch": {
    "l": 0.60705,
    "c": 0.16321,
    "h": 264.9
  },
  "luminance": 0.21711
}

Semantic roles & 50–950 ramp

primary

#517CE3

secondary

#E4D3AC

accent

#9B11D4

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #517CE3

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

Preview Lab → · Contrast checker → · Palette generator →