#517EEE#517EEE

#517EEE is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.8% C 0.176 H 265.2°. Best body text is #000000 at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#517EEE
RGB	rgb(81, 126, 238)
HSL	hsl(223, 82%, 63%)
HSV	hsv(223, 66%, 93%)
CMYK	cmyk(66%, 47.1%, 0%, 6.7%)
CIE-LAB	lab(54.91, 20.10, -61.10)
CIE-LCH	lch(54.91, 64.32, 288.21°)
OKLab	oklab(61.83% -0.0147 -0.175)
OKLCH	oklch(61.83% 0.176 265.2)
XYZ	xyz(26.2814, 22.8416, 83.8962)
Luminance	0.2284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517EEE #EEC151

analogous

#51CCEE #517EEE #7351EE

triadic

#517EEE #EE517E #7EEE51

tetradic

#517EEE #EE51CC #EEC151 #51EE73

square

#517EEE #EE51CC #EEC151 #51EE73

split-complementary

#517EEE #EE7351 #CCEE51

monochromatic

#1140B3 #1955E9 #517EEE #89A7F3 #C1D1F9

Accessibility & contrast

On white

3.77

#517EEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.57

#517EEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517EEE

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517EEE	#FFFFFF	#000000	##000000
##517EEE	1.00	3.77	5.57	5.57
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.57	21.00	1.00	1.00
##000000	5.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#448BF2

Deuteranopia (green-blind)

#217DEC

Tritanopia (blue-blind)

#0098AA

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #517eee;
/* rgb */ color: rgb(81, 126, 238);
/* oklch */ color: oklch(61.8% 0.176 265.2);

Tailwind

colors: {
  custom: {
    50: '#91a2f4',
    500: '#517eee',
    950: '#000000',
  },
}

SCSS

$custom: #517eee;
$custom-light: #91a2f4;
$custom-dark: #000000;

JSON

{
  "hex": "#517eee",
  "rgb": {
    "r": 81,
    "g": 126,
    "b": 238
  },
  "hsl": {
    "h": 222.803,
    "s": 82.199,
    "l": 62.549
  },
  "oklch": {
    "l": 0.6183,
    "c": 0.17561,
    "h": 265.2
  },
  "luminance": 0.22844
}

Semantic roles & 50–950 ramp

primary

#517EEE

secondary

#EADAB1

accent

#A107DF

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #517EEE

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

Preview Lab → · Contrast checker → · Palette generator →