#517FED#517FED

#517FED is a mid, vivid blue. Relative luminance 0.230; OKLCH L 62.0% C 0.173 H 264.8°. Best body text is #000000 at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#517FED
RGB	rgb(81, 127, 237)
HSL	hsl(222, 81%, 62%)
HSV	hsv(222, 66%, 93%)
CMYK	cmyk(65.8%, 46.4%, 0%, 7.1%)
CIE-LAB	lab(55.11, 19.14, -60.21)
CIE-LCH	lch(55.11, 63.18, 287.64°)
OKLab	oklab(61.97% -0.0158 -0.1724)
OKLCH	oklch(61.97% 0.173 264.8)
XYZ	xyz(26.2634, 23.0400, 83.1674)
Luminance	0.2304 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517FED #EDBF51

analogous

#51CDED #517FED #7151ED

triadic

#517FED #ED517F #7FED51

tetradic

#517FED #ED51CD #EDBF51 #51ED71

square

#517FED #ED51CD #EDBF51 #51ED71

split-complementary

#517FED #ED7151 #CDED51

monochromatic

#1241B1 #1A56E7 #517FED #88A8F3 #C0D1F8

Accessibility & contrast

On white

3.74

#517FED on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.61

#517FED on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517FED

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517FED	#FFFFFF	#000000	##000000
##517FED	1.00	3.74	5.61	5.61
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.61	21.00	1.00	1.00
##000000	5.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#478CF1

Deuteranopia (green-blind)

#267DEB

Tritanopia (blue-blind)

#0098AA

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #517fed;
/* rgb */ color: rgb(81, 127, 237);
/* oklch */ color: oklch(62.0% 0.173 264.8);

Tailwind

colors: {
  custom: {
    50: '#91a3f3',
    500: '#517fed',
    950: '#000000',
  },
}

SCSS

$custom: #517fed;
$custom-light: #91a3f3;
$custom-dark: #000000;

JSON

{
  "hex": "#517fed",
  "rgb": {
    "r": 81,
    "g": 127,
    "b": 237
  },
  "hsl": {
    "h": 222.308,
    "s": 81.25,
    "l": 62.353
  },
  "oklch": {
    "l": 0.61967,
    "c": 0.17309,
    "h": 264.8
  },
  "luminance": 0.23042
}

Semantic roles & 50–950 ramp

primary

#517FED

secondary

#E9D9B0

accent

#9F08DE

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #517FED

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

Preview Lab → · Contrast checker → · Palette generator →