#517DEC#517DEC

#517DEC is a mid, vivid blue. Relative luminance 0.225; OKLCH L 61.5% C 0.174 H 265.4°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#517DEC
RGB	rgb(81, 125, 236)
HSL	hsl(223, 80%, 62%)
HSV	hsv(223, 66%, 93%)
CMYK	cmyk(65.7%, 47%, 0%, 7.5%)
CIE-LAB	lab(54.52, 20.02, -60.60)
CIE-LCH	lch(54.52, 63.83, 288.28°)
OKLab	oklab(61.5% -0.0141 -0.1735)
OKLCH	oklch(61.5% 0.174 265.4)
XYZ	xyz(25.8620, 22.4702, 82.3149)
Luminance	0.2247 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517DEC #ECC051

analogous

#51CAEC #517DEC #7351EC

triadic

#517DEC #EC517D #7DEC51

tetradic

#517DEC #EC51CA #ECC051 #51EC73

square

#517DEC #EC51CA #ECC051 #51EC73

split-complementary

#517DEC #EC7351 #CAEC51

monochromatic

#1340AF #1A54E6 #517DEC #88A6F2 #BFCFF8

Accessibility & contrast

On white

3.82

#517DEC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#517DEC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517DEC

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517DEC	#FFFFFF	#000000	##000000
##517DEC	1.00	3.82	5.49	5.49
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.49	21.00	1.00	1.00
##000000	5.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#438AF0

Deuteranopia (green-blind)

#217CEA

Tritanopia (blue-blind)

#0097A9

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #517dec;
/* rgb */ color: rgb(81, 125, 236);
/* oklch */ color: oklch(61.5% 0.174 265.4);

Tailwind

colors: {
  custom: {
    50: '#91a2f3',
    500: '#517dec',
    950: '#000000',
  },
}

SCSS

$custom: #517dec;
$custom-light: #91a2f3;
$custom-dark: #000000;

JSON

{
  "hex": "#517dec",
  "rgb": {
    "r": 81,
    "g": 125,
    "b": 236
  },
  "hsl": {
    "h": 222.968,
    "s": 80.311,
    "l": 62.157
  },
  "oklch": {
    "l": 0.61496,
    "c": 0.17412,
    "h": 265.4
  },
  "luminance": 0.22473
}

Semantic roles & 50–950 ramp

primary

#517DEC

secondary

#E9D9B0

accent

#A109DD

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #517DEC

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

Preview Lab → · Contrast checker → · Palette generator →