#517CD7#517CD7

#517CD7 is a mid, vivid blue. Relative luminance 0.211; OKLCH L 60.0% C 0.147 H 263.5°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#517CD7
RGB	rgb(81, 124, 215)
HSL	hsl(221, 63%, 58%)
HSV	hsv(221, 62%, 84%)
CMYK	cmyk(62.3%, 42.3%, 0%, 15.7%)
CIE-LAB	lab(53.02, 13.43, -51.22)
CIE-LCH	lch(53.02, 52.95, 284.70°)
OKLab	oklab(59.95% -0.0165 -0.146)
OKLCH	oklch(59.95% 0.147 263.5)
XYZ	xyz(22.8625, 21.0689, 67.1387)
Luminance	0.2107 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517CD7 #D7AC51

analogous

#51BFD7 #517CD7 #6951D7

triadic

#517CD7 #D7517C #7CD751

tetradic

#517CD7 #D751BF #D7AC51 #51D769

square

#517CD7 #D751BF #D7AC51 #51D769

split-complementary

#517CD7 #D76951 #BFD751

monochromatic

#20438D #2C5BBF #517CD7 #83A1E2 #B5C7EE

Accessibility & contrast

On white

4.03

#517CD7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#517CD7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517CD7

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517CD7	#FFFFFF	#000000	##000000
##517CD7	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5385DB

Deuteranopia (green-blind)

#3E79D5

Tritanopia (blue-blind)

#00919F

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #517cd7;
/* rgb */ color: rgb(81, 124, 215);
/* oklch */ color: oklch(60.0% 0.147 263.5);

Tailwind

colors: {
  custom: {
    50: '#8ea1e4',
    500: '#517cd7',
    950: '#000000',
  },
}

SCSS

$custom: #517cd7;
$custom-light: #8ea1e4;
$custom-dark: #000000;

JSON

{
  "hex": "#517cd7",
  "rgb": {
    "r": 81,
    "g": 124,
    "b": 215
  },
  "hsl": {
    "h": 220.746,
    "s": 62.617,
    "l": 58.039
  },
  "oklch": {
    "l": 0.5995,
    "c": 0.14692,
    "h": 263.5
  },
  "luminance": 0.21071
}

Semantic roles & 50–950 ramp

primary

#517CD7

secondary

#DDCBA7

accent

#B142E6

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0D0E15

muted

#7E7E84

Preview Lab

Preview with #517CD7

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

Preview Lab → · Contrast checker → · Palette generator →