#517FD2#517FD2

#517FD2 is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.3% C 0.137 H 261.3°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#517FD2
RGB	rgb(81, 127, 210)
HSL	hsl(219, 59%, 57%)
HSV	hsv(219, 61%, 82%)
CMYK	cmyk(61.4%, 39.5%, 0%, 17.6%)
CIE-LAB	lab(53.58, 9.91, -47.52)
CIE-LCH	lch(53.58, 48.54, 281.78°)
OKLab	oklab(60.29% -0.0206 -0.1351)
OKLCH	oklch(60.29% 0.137 261.3)
XYZ	xyz(22.6115, 21.5792, 63.9339)
Luminance	0.2158 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517FD2 #D2A451

analogous

#51BFD2 #517FD2 #6451D2

triadic

#517FD2 #D2517F #7FD251

tetradic

#517FD2 #D251BF #D2A451 #51D264

square

#517FD2 #D251BF #D2A451 #51D264

split-complementary

#517FD2 #D26451 #BFD251

monochromatic

#234686 #2F5FB7 #517FD2 #82A3DF #B2C7EB

Accessibility & contrast

On white

3.95

#517FD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#517FD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517FD2

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517FD2	#FFFFFF	#000000	##000000
##517FD2	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B86D5

Deuteranopia (green-blind)

#497AD0

Tritanopia (blue-blind)

#00929E

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #517fd2;
/* rgb */ color: rgb(81, 127, 210);
/* oklch */ color: oklch(60.3% 0.137 261.3);

Tailwind

colors: {
  custom: {
    50: '#8da3e0',
    500: '#517fd2',
    950: '#000000',
  },
}

SCSS

$custom: #517fd2;
$custom-light: #8da3e0;
$custom-dark: #000000;

JSON

{
  "hex": "#517fd2",
  "rgb": {
    "r": 81,
    "g": 127,
    "b": 210
  },
  "hsl": {
    "h": 218.605,
    "s": 58.904,
    "l": 57.059
  },
  "oklch": {
    "l": 0.60288,
    "c": 0.13664,
    "h": 261.3
  },
  "luminance": 0.21581
}

Semantic roles & 50–950 ramp

primary

#517FD2

secondary

#DAC7A5

accent

#AA46E2

background

#F9FAFD

surface

#F1F3FB

border

#CBCDD4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #517FD2

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

Preview Lab → · Contrast checker → · Palette generator →