#517ECE#517ECE

#517ECE is a mid, vivid blue. Relative luminance 0.211; OKLCH L 59.8% C 0.132 H 261.1°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#517ECE
RGB	rgb(81, 126, 206)
HSL	hsl(218, 56%, 56%)
HSV	hsv(218, 61%, 81%)
CMYK	cmyk(60.7%, 38.8%, 0%, 19.2%)
CIE-LAB	lab(53.09, 9.17, -46.03)
CIE-LCH	lch(53.09, 46.93, 281.26°)
OKLab	oklab(59.84% -0.0204 -0.1307)
OKLCH	oklch(59.84% 0.132 261.1)
XYZ	xyz(21.9909, 21.1253, 61.2993)
Luminance	0.2113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517ECE #CEA151

analogous

#51BDCE #517ECE #6351CE

triadic

#517ECE #CE517E #7ECE51

tetradic

#517ECE #CE51BD #CEA151 #51CE63

square

#517ECE #CE51BD #CEA151 #51CE63

split-complementary

#517ECE #CE6351 #BDCE51

monochromatic

#244580 #325FB0 #517ECE #81A1DB #B1C5E9

Accessibility & contrast

On white

4.02

#517ECE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#517ECE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517ECE

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517ECE	#FFFFFF	#000000	##000000
##517ECE	1.00	4.02	5.23	5.23
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B85D1

Deuteranopia (green-blind)

#4A79CC

Tritanopia (blue-blind)

#00909C

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #517ece;
/* rgb */ color: rgb(81, 126, 206);
/* oklch */ color: oklch(59.8% 0.132 261.1);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#517ece",
  "rgb": {
    "r": 81,
    "g": 126,
    "b": 206
  },
  "hsl": {
    "h": 218.4,
    "s": 56.054,
    "l": 56.275
  },
  "oklch": {
    "l": 0.59838,
    "c": 0.13233,
    "h": 261.1
  },
  "luminance": 0.21127
}

Semantic roles & 50–950 ramp

primary

#517ECE

secondary

#D7C5A4

accent

#A948DF

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #517ECE

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

Preview Lab → · Contrast checker → · Palette generator →