#517FCE#517FCE

#517FCE is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.1% C 0.131 H 260.6°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#517FCE
RGB	rgb(81, 127, 206)
HSL	hsl(218, 56%, 56%)
HSV	hsv(218, 61%, 81%)
CMYK	cmyk(60.7%, 38.3%, 0%, 19.2%)
CIE-LAB	lab(53.37, 8.56, -45.59)
CIE-LCH	lch(53.37, 46.38, 280.64°)
OKLab	oklab(60.06% -0.0215 -0.1294)
OKLCH	oklch(60.06% 0.131 260.6)
XYZ	xyz(22.1194, 21.3823, 61.3421)
Luminance	0.2138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517FCE #CEA051

analogous

#51BECE #517FCE #6251CE

triadic

#517FCE #CE517F #7FCE51

tetradic

#517FCE #CE51BE #CEA051 #51CE62

square

#517FCE #CE51BE #CEA051 #51CE62

split-complementary

#517FCE #CE6251 #BECE51

monochromatic

#244680 #3260B0 #517FCE #81A2DB #B1C5E9

Accessibility & contrast

On white

3.98

#517FCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#517FCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517FCE

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517FCE	#FFFFFF	#000000	##000000
##517FCE	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D86D1

Deuteranopia (green-blind)

#4C7ACC

Tritanopia (blue-blind)

#00919C

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #517fce;
/* rgb */ color: rgb(81, 127, 206);
/* oklch */ color: oklch(60.1% 0.131 260.6);

Tailwind

colors: {
  custom: {
    50: '#8ca3dd',
    500: '#517fce',
    950: '#000000',
  },
}

SCSS

$custom: #517fce;
$custom-light: #8ca3dd;
$custom-dark: #000000;

JSON

{
  "hex": "#517fce",
  "rgb": {
    "r": 81,
    "g": 127,
    "b": 206
  },
  "hsl": {
    "h": 217.92,
    "s": 56.054,
    "l": 56.275
  },
  "oklch": {
    "l": 0.60055,
    "c": 0.13121,
    "h": 260.6
  },
  "luminance": 0.21384
}

Semantic roles & 50–950 ramp

primary

#517FCE

secondary

#D7C4A4

accent

#A848DF

background

#F9FAFD

surface

#F1F3FB

border

#CBCDD4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #517FCE

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

Preview Lab → · Contrast checker → · Palette generator →