#517BC0#517BC0

#517BC0 is a mid, moderate blue. Relative luminance 0.197; OKLCH L 58.4% C 0.117 H 259.9°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#517BC0
RGB	rgb(81, 123, 192)
HSL	hsl(217, 47%, 54%)
HSV	hsv(217, 58%, 75%)
CMYK	cmyk(57.8%, 35.9%, 0%, 24.7%)
CIE-LAB	lab(51.52, 6.30, -40.53)
CIE-LCH	lch(51.52, 41.02, 278.84°)
OKLab	oklab(58.38% -0.0205 -0.1147)
OKLCH	oklch(58.38% 0.117 259.9)
XYZ	xyz(19.9874, 19.7194, 52.6119)
Luminance	0.1972 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517BC0 #C09651

analogous

#51B2C0 #517BC0 #5E51C0

triadic

#517BC0 #C0517B #7BC051

tetradic

#517BC0 #C051B2 #C09651 #51C05E

square

#517BC0 #C051B2 #C09651 #51C05E

split-complementary

#517BC0 #C05E51 #B2C051

monochromatic

#28436F #385E9B #517BC0 #7E9DD0 #ABBFE1

Accessibility & contrast

On white

4.25

#517BC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#517BC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517BC0

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517BC0	#FFFFFF	#000000	##000000
##517BC0	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E80C3

Deuteranopia (green-blind)

#5076BF

Tritanopia (blue-blind)

#008A94

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #517bc0;
/* rgb */ color: rgb(81, 123, 192);
/* oklch */ color: oklch(58.4% 0.117 259.9);

Tailwind

colors: {
  custom: {
    50: '#8aa0d3',
    500: '#517bc0',
    950: '#000000',
  },
}

SCSS

$custom: #517bc0;
$custom-light: #8aa0d3;
$custom-dark: #000000;

JSON

{
  "hex": "#517bc0",
  "rgb": {
    "r": 81,
    "g": 123,
    "b": 192
  },
  "hsl": {
    "h": 217.297,
    "s": 46.835,
    "l": 53.529
  },
  "oklch": {
    "l": 0.58384,
    "c": 0.11651,
    "h": 259.9
  },
  "luminance": 0.19721
}

Semantic roles & 50–950 ramp

primary

#517BC0

secondary

#CEBC9F

accent

#A451D6

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #517BC0

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

Preview Lab → · Contrast checker → · Palette generator →