#517AE5#517AE5

#517AE5 is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.4% C 0.168 H 265.8°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#517AE5
RGB	rgb(81, 122, 229)
HSL	hsl(223, 74%, 61%)
HSV	hsv(223, 65%, 90%)
CMYK	cmyk(64.6%, 46.7%, 0%, 10.2%)
CIE-LAB	lab(53.30, 19.46, -58.65)
CIE-LCH	lch(53.30, 61.80, 288.35°)
OKLab	oklab(60.43% -0.0123 -0.1678)
OKLCH	oklch(60.43% 0.168 265.8)
XYZ	xyz(24.4908, 21.3233, 76.9387)
Luminance	0.2133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517AE5 #E5BC51

analogous

#51C4E5 #517AE5 #7251E5

triadic

#517AE5 #E5517A #7AE551

tetradic

#517AE5 #E551C4 #E5BC51 #51E572

square

#517AE5 #E551C4 #E5BC51 #51E572

split-complementary

#517AE5 #E57251 #C4E551

monochromatic

#183FA3 #2053D8 #517AE5 #86A3ED #BBCBF5

Accessibility & contrast

On white

3.99

#517AE5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#517AE5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517AE5

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517AE5	#FFFFFF	#000000	##000000
##517AE5	1.00	3.99	5.27	5.27
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4386E9

Deuteranopia (green-blind)

#2679E3

Tritanopia (blue-blind)

#0093A4

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #517ae5;
/* rgb */ color: rgb(81, 122, 229);
/* oklch */ color: oklch(60.4% 0.168 265.8);

Tailwind

colors: {
  custom: {
    50: '#909fee',
    500: '#517ae5',
    950: '#000000',
  },
}

SCSS

$custom: #517ae5;
$custom-light: #909fee;
$custom-dark: #000000;

JSON

{
  "hex": "#517ae5",
  "rgb": {
    "r": 81,
    "g": 122,
    "b": 229
  },
  "hsl": {
    "h": 223.378,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.60426,
    "c": 0.1683,
    "h": 265.8
  },
  "luminance": 0.21326
}

Semantic roles & 50–950 ramp

primary

#517AE5

secondary

#E5D5AD

accent

#9F0FD6

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #517AE5

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

Preview Lab → · Contrast checker → · Palette generator →