#517FD8#517FD8

#517FD8 is a mid, vivid blue. Relative luminance 0.219; OKLCH L 60.6% C 0.145 H 262.3°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#517FD8
RGB	rgb(81, 127, 216)
HSL	hsl(220, 63%, 58%)
HSV	hsv(220, 63%, 85%)
CMYK	cmyk(62.5%, 41.2%, 0%, 15.3%)
CIE-LAB	lab(53.90, 11.94, -50.38)
CIE-LCH	lch(53.90, 51.78, 283.34°)
OKLab	oklab(60.65% -0.0194 -0.1435)
OKLCH	oklch(60.65% 0.145 262.3)
XYZ	xyz(23.3730, 21.8838, 67.9447)
Luminance	0.2189 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517FD8 #D8AA51

analogous

#51C2D8 #517FD8 #6751D8

triadic

#517FD8 #D8517F #7FD851

tetradic

#517FD8 #D851C2 #D8AA51 #51D867

square

#517FD8 #D851C2 #D8AA51 #51D867

split-complementary

#517FD8 #D86751 #C2D851

monochromatic

#20468F #2B5EC1 #517FD8 #83A4E3 #B5C9EE

Accessibility & contrast

On white

3.91

#517FD8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#517FD8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517FD8

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517FD8	#FFFFFF	#000000	##000000
##517FD8	1.00	3.91	5.38	5.38
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5788DB

Deuteranopia (green-blind)

#437BD6

Tritanopia (blue-blind)

#0093A1

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #517fd8;
/* rgb */ color: rgb(81, 127, 216);
/* oklch */ color: oklch(60.6% 0.145 262.3);

Tailwind

colors: {
  custom: {
    50: '#8ea3e4',
    500: '#517fd8',
    950: '#000000',
  },
}

SCSS

$custom: #517fd8;
$custom-light: #8ea3e4;
$custom-dark: #000000;

JSON

{
  "hex": "#517fd8",
  "rgb": {
    "r": 81,
    "g": 127,
    "b": 216
  },
  "hsl": {
    "h": 219.556,
    "s": 63.38,
    "l": 58.235
  },
  "oklch": {
    "l": 0.60646,
    "c": 0.1448,
    "h": 262.3
  },
  "luminance": 0.21886
}

Semantic roles & 50–950 ramp

primary

#517FD8

secondary

#DDCBA8

accent

#AE41E6

background

#F9FAFE

surface

#F2F3FC

border

#CCCDD5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #517FD8

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

Preview Lab → · Contrast checker → · Palette generator →