#517FD7#517FD7

#517FD7 is a mid, vivid blue. Relative luminance 0.218; OKLCH L 60.6% C 0.143 H 262.2°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#517FD7
RGB	rgb(81, 127, 215)
HSL	hsl(219, 63%, 58%)
HSV	hsv(219, 62%, 84%)
CMYK	cmyk(62.3%, 40.9%, 0%, 15.7%)
CIE-LAB	lab(53.85, 11.61, -49.91)
CIE-LCH	lch(53.85, 51.24, 283.09°)
OKLab	oklab(60.59% -0.0196 -0.1421)
OKLCH	oklch(60.59% 0.143 262.2)
XYZ	xyz(23.2442, 21.8323, 67.2659)
Luminance	0.2183 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517FD7 #D7A951

analogous

#51C2D7 #517FD7 #6651D7

triadic

#517FD7 #D7517F #7FD751

tetradic

#517FD7 #D751C2 #D7A951 #51D766

square

#517FD7 #D751C2 #D7A951 #51D766

split-complementary

#517FD7 #D76651 #C2D751

monochromatic

#20468D #2C5EBF #517FD7 #83A4E2 #B5C8EE

Accessibility & contrast

On white

3.91

#517FD7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#517FD7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517FD7

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517FD7	#FFFFFF	#000000	##000000
##517FD7	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5887DA

Deuteranopia (green-blind)

#447BD5

Tritanopia (blue-blind)

#0093A0

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #517fd7;
/* rgb */ color: rgb(81, 127, 215);
/* oklch */ color: oklch(60.6% 0.143 262.2);

Tailwind

colors: {
  custom: {
    50: '#8ea3e4',
    500: '#517fd7',
    950: '#000000',
  },
}

SCSS

$custom: #517fd7;
$custom-light: #8ea3e4;
$custom-dark: #000000;

JSON

{
  "hex": "#517fd7",
  "rgb": {
    "r": 81,
    "g": 127,
    "b": 215
  },
  "hsl": {
    "h": 219.403,
    "s": 62.617,
    "l": 58.039
  },
  "oklch": {
    "l": 0.60586,
    "c": 0.14344,
    "h": 262.2
  },
  "luminance": 0.21834
}

Semantic roles & 50–950 ramp

primary

#517FD7

secondary

#DDCAA7

accent

#AE42E6

background

#F9FAFE

surface

#F2F3FC

border

#CCCDD5

text

#0D0F15

muted

#7E7F84

Preview Lab

Preview with #517FD7

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

Preview Lab → · Contrast checker → · Palette generator →