#517BCE#517BCE

#517BCE is a mid, vivid blue. Relative luminance 0.204; OKLCH L 59.2% C 0.136 H 262.7°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#517BCE
RGB	rgb(81, 123, 206)
HSL	hsl(220, 56%, 56%)
HSV	hsv(220, 61%, 81%)
CMYK	cmyk(60.7%, 40.3%, 0%, 19.2%)
CIE-LAB	lab(52.25, 10.99, -47.35)
CIE-LCH	lch(52.25, 48.61, 283.07°)
OKLab	oklab(59.19% -0.0173 -0.1347)
OKLCH	oklch(59.19% 0.136 262.7)
XYZ	xyz(21.6130, 20.3696, 61.1733)
Luminance	0.2037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517BCE #CEA451

analogous

#51BACE #517BCE #6651CE

triadic

#517BCE #CE517B #7BCE51

tetradic

#517BCE #CE51BA #CEA451 #51CE66

square

#517BCE #CE51BA #CEA451 #51CE66

split-complementary

#517BCE #CE6651 #BACE51

monochromatic

#244380 #325CB0 #517BCE #819FDB #B1C3E9

Accessibility & contrast

On white

4.14

#517BCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#517BCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517BCE

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517BCE	#FFFFFF	#000000	##000000
##517BCE	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5783D1

Deuteranopia (green-blind)

#4577CC

Tritanopia (blue-blind)

#008E9A

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #517bce;
/* rgb */ color: rgb(81, 123, 206);
/* oklch */ color: oklch(59.2% 0.136 262.7);

Tailwind

colors: {
  custom: {
    50: '#8ca0dd',
    500: '#517bce',
    950: '#000000',
  },
}

SCSS

$custom: #517bce;
$custom-light: #8ca0dd;
$custom-dark: #000000;

JSON

{
  "hex": "#517bce",
  "rgb": {
    "r": 81,
    "g": 123,
    "b": 206
  },
  "hsl": {
    "h": 219.84,
    "s": 56.054,
    "l": 56.275
  },
  "oklch": {
    "l": 0.59193,
    "c": 0.13576,
    "h": 262.7
  },
  "luminance": 0.20371
}

Semantic roles & 50–950 ramp

primary

#517BCE

secondary

#D7C6A4

accent

#AD48DF

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #517BCE

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

Preview Lab → · Contrast checker → · Palette generator →