#517CCE#517CCE

#517CCE is a mid, vivid blue. Relative luminance 0.206; OKLCH L 59.4% C 0.135 H 262.2°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#517CCE
RGB	rgb(81, 124, 206)
HSL	hsl(219, 56%, 56%)
HSV	hsv(219, 61%, 81%)
CMYK	cmyk(60.7%, 39.8%, 0%, 19.2%)
CIE-LAB	lab(52.53, 10.38, -46.91)
CIE-LCH	lch(52.53, 48.05, 282.48°)
OKLab	oklab(59.41% -0.0183 -0.1333)
OKLCH	oklch(59.41% 0.135 262.2)
XYZ	xyz(21.7377, 20.6190, 61.2149)
Luminance	0.2062 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517CCE #CEA351

analogous

#51BBCE #517CCE #6551CE

triadic

#517CCE #CE517C #7CCE51

tetradic

#517CCE #CE51BB #CEA351 #51CE65

square

#517CCE #CE51BB #CEA351 #51CE65

split-complementary

#517CCE #CE6551 #BBCE51

monochromatic

#244480 #325DB0 #517CCE #81A0DB #B1C4E9

Accessibility & contrast

On white

4.10

#517CCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#517CCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517CCE

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517CCE	#FFFFFF	#000000	##000000
##517CCE	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5884D1

Deuteranopia (green-blind)

#4778CC

Tritanopia (blue-blind)

#008E9B

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #517cce;
/* rgb */ color: rgb(81, 124, 206);
/* oklch */ color: oklch(59.4% 0.135 262.2);

Tailwind

colors: {
  custom: {
    50: '#8ca1dd',
    500: '#517cce',
    950: '#000000',
  },
}

SCSS

$custom: #517cce;
$custom-light: #8ca1dd;
$custom-dark: #000000;

JSON

{
  "hex": "#517cce",
  "rgb": {
    "r": 81,
    "g": 124,
    "b": 206
  },
  "hsl": {
    "h": 219.36,
    "s": 56.054,
    "l": 56.275
  },
  "oklch": {
    "l": 0.59407,
    "c": 0.1346,
    "h": 262.2
  },
  "luminance": 0.20621
}

Semantic roles & 50–950 ramp

primary

#517CCE

secondary

#D7C5A4

accent

#AB48DF

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #517CCE

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

Preview Lab → · Contrast checker → · Palette generator →