#517EE3#517EE3

#517EE3 is a mid, vivid blue. Relative luminance 0.222; OKLCH L 61.1% C 0.161 H 264.1°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#517EE3
RGB	rgb(81, 126, 227)
HSL	hsl(222, 72%, 60%)
HSV	hsv(222, 64%, 89%)
CMYK	cmyk(64.3%, 44.5%, 0%, 11%)
CIE-LAB	lab(54.25, 16.32, -56.01)
CIE-LCH	lch(54.25, 58.33, 286.24°)
OKLab	oklab(61.12% -0.0164 -0.16)
OKLCH	oklch(61.12% 0.161 264.1)
XYZ	xyz(24.7145, 22.2148, 75.6436)
Luminance	0.2222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517EE3 #E3B651

analogous

#51C7E3 #517EE3 #6D51E3

triadic

#517EE3 #E3517E #7EE351

tetradic

#517EE3 #E351C7 #E3B651 #51E36D

square

#517EE3 #E351C7 #E3B651 #51E36D

split-complementary

#517EE3 #E36D51 #C7E351

monochromatic

#1A43A0 #2259D5 #517EE3 #86A5EB #BACCF4

Accessibility & contrast

On white

3.86

#517EE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#517EE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517EE3

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517EE3	#FFFFFF	#000000	##000000
##517EE3	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D89E7

Deuteranopia (green-blind)

#347BE1

Tritanopia (blue-blind)

#0095A5

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #517ee3;
/* rgb */ color: rgb(81, 126, 227);
/* oklch */ color: oklch(61.1% 0.161 264.1);

Tailwind

colors: {
  custom: {
    50: '#90a2ec',
    500: '#517ee3',
    950: '#000000',
  },
}

SCSS

$custom: #517ee3;
$custom-light: #90a2ec;
$custom-dark: #000000;

JSON

{
  "hex": "#517ee3",
  "rgb": {
    "r": 81,
    "g": 126,
    "b": 227
  },
  "hsl": {
    "h": 221.507,
    "s": 72.277,
    "l": 60.392
  },
  "oklch": {
    "l": 0.61118,
    "c": 0.16085,
    "h": 264.1
  },
  "luminance": 0.22217
}

Semantic roles & 50–950 ramp

primary

#517EE3

secondary

#E4D3AC

accent

#9811D4

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #517EE3

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

Preview Lab → · Contrast checker → · Palette generator →