#517ED5#517ED5

#517ED5 is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.3% C 0.142 H 262.3°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#517ED5
RGB	rgb(81, 126, 213)
HSL	hsl(220, 61%, 58%)
HSV	hsv(220, 62%, 84%)
CMYK	cmyk(62%, 40.8%, 0%, 16.5%)
CIE-LAB	lab(53.46, 11.53, -49.39)
CIE-LCH	lch(53.46, 50.72, 283.14°)
OKLab	oklab(60.25% -0.019 -0.1406)
OKLCH	oklch(60.25% 0.142 262.3)
XYZ	xyz(22.8602, 21.4731, 65.8779)
Luminance	0.2147 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517ED5 #D5A851

analogous

#51C0D5 #517ED5 #6651D5

triadic

#517ED5 #D5517E #7ED551

tetradic

#517ED5 #D551C0 #D5A851 #51D566

square

#517ED5 #D551C0 #D5A851 #51D566

split-complementary

#517ED5 #D56651 #C0D551

monochromatic

#21458A #2D5EBC #517ED5 #82A3E1 #B4C7ED

Accessibility & contrast

On white

3.97

#517ED5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#517ED5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517ED5

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517ED5	#FFFFFF	#000000	##000000
##517ED5	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5786D8

Deuteranopia (green-blind)

#447AD3

Tritanopia (blue-blind)

#00929F

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #517ed5;
/* rgb */ color: rgb(81, 126, 213);
/* oklch */ color: oklch(60.3% 0.142 262.3);

Tailwind

colors: {
  custom: {
    50: '#8da2e2',
    500: '#517ed5',
    950: '#000000',
  },
}

SCSS

$custom: #517ed5;
$custom-light: #8da2e2;
$custom-dark: #000000;

JSON

{
  "hex": "#517ed5",
  "rgb": {
    "r": 81,
    "g": 126,
    "b": 213
  },
  "hsl": {
    "h": 219.545,
    "s": 61.111,
    "l": 57.647
  },
  "oklch": {
    "l": 0.60253,
    "c": 0.14187,
    "h": 262.3
  },
  "luminance": 0.21475
}

Semantic roles & 50–950 ramp

primary

#517ED5

secondary

#DBC9A6

accent

#AD44E4

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #517ED5

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

Preview Lab → · Contrast checker → · Palette generator →