#517CC0#517CC0

#517CC0 is a mid, moderate blue. Relative luminance 0.200; OKLCH L 58.6% C 0.115 H 259.2°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#517CC0
RGB	rgb(81, 124, 192)
HSL	hsl(217, 47%, 54%)
HSV	hsv(217, 58%, 75%)
CMYK	cmyk(57.8%, 35.4%, 0%, 24.7%)
CIE-LAB	lab(51.80, 5.70, -40.08)
CIE-LCH	lch(51.80, 40.49, 278.09°)
OKLab	oklab(58.61% -0.0216 -0.1134)
OKLCH	oklch(58.61% 0.115 259.2)
XYZ	xyz(20.1121, 19.9687, 52.6534)
Luminance	0.1997 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517CC0 #C09551

analogous

#51B3C0 #517CC0 #5D51C0

triadic

#517CC0 #C0517C #7CC051

tetradic

#517CC0 #C051B3 #C09551 #51C05D

square

#517CC0 #C051B3 #C09551 #51C05D

split-complementary

#517CC0 #C05D51 #B3C051

monochromatic

#28436F #385F9B #517CC0 #7E9ED0 #ABC0E1

Accessibility & contrast

On white

4.21

#517CC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.99

#517CC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517CC0

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517CC0	#FFFFFF	#000000	##000000
##517CC0	1.00	4.21	4.99	4.99
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.99	21.00	1.00	1.00
##000000	4.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6081C3

Deuteranopia (green-blind)

#5277BF

Tritanopia (blue-blind)

#008B95

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #517cc0;
/* rgb */ color: rgb(81, 124, 192);
/* oklch */ color: oklch(58.6% 0.115 259.2);

Tailwind

colors: {
  custom: {
    50: '#8aa1d3',
    500: '#517cc0',
    950: '#000000',
  },
}

SCSS

$custom: #517cc0;
$custom-light: #8aa1d3;
$custom-dark: #000000;

JSON

{
  "hex": "#517cc0",
  "rgb": {
    "r": 81,
    "g": 124,
    "b": 192
  },
  "hsl": {
    "h": 216.757,
    "s": 46.835,
    "l": 53.529
  },
  "oklch": {
    "l": 0.58605,
    "c": 0.11542,
    "h": 259.2
  },
  "luminance": 0.1997
}

Semantic roles & 50–950 ramp

primary

#517CC0

secondary

#CEBC9F

accent

#A351D6

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #517CC0

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

Preview Lab → · Contrast checker → · Palette generator →