#517CD6#517CD6

#517CD6 is a mid, vivid blue. Relative luminance 0.210; OKLCH L 59.9% C 0.146 H 263.4°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#517CD6
RGB	rgb(81, 124, 214)
HSL	hsl(221, 62%, 58%)
HSV	hsv(221, 62%, 84%)
CMYK	cmyk(62.1%, 42.1%, 0%, 16.1%)
CIE-LAB	lab(52.97, 13.09, -50.75)
CIE-LCH	lch(52.97, 52.41, 284.47°)
OKLab	oklab(59.89% -0.0167 -0.1446)
OKLCH	oklch(59.89% 0.146 263.4)
XYZ	xyz(22.7344, 21.0176, 66.4640)
Luminance	0.2102 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517CD6 #D6AB51

analogous

#51BED6 #517CD6 #6951D6

triadic

#517CD6 #D6517C #7CD651

tetradic

#517CD6 #D651BE #D6AB51 #51D669

square

#517CD6 #D651BE #D6AB51 #51D669

split-complementary

#517CD6 #D66951 #BED651

monochromatic

#21438C #2D5BBD #517CD6 #83A1E2 #B4C7ED

Accessibility & contrast

On white

4.04

#517CD6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#517CD6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517CD6

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517CD6	#FFFFFF	#000000	##000000
##517CD6	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5385D9

Deuteranopia (green-blind)

#3F79D4

Tritanopia (blue-blind)

#00909E

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #517cd6;
/* rgb */ color: rgb(81, 124, 214);
/* oklch */ color: oklch(59.9% 0.146 263.4);

Tailwind

colors: {
  custom: {
    50: '#8da1e3',
    500: '#517cd6',
    950: '#000000',
  },
}

SCSS

$custom: #517cd6;
$custom-light: #8da1e3;
$custom-dark: #000000;

JSON

{
  "hex": "#517cd6",
  "rgb": {
    "r": 81,
    "g": 124,
    "b": 214
  },
  "hsl": {
    "h": 220.602,
    "s": 61.86,
    "l": 57.843
  },
  "oklch": {
    "l": 0.59889,
    "c": 0.14555,
    "h": 263.4
  },
  "luminance": 0.2102
}

Semantic roles & 50–950 ramp

primary

#517CD6

secondary

#DCCBA7

accent

#B143E5

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #517CD6

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

Preview Lab → · Contrast checker → · Palette generator →