#517ADA#517ADA

#517ADA is a mid, vivid blue. Relative luminance 0.207; OKLCH L 59.7% C 0.153 H 264.8°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#517ADA
RGB	rgb(81, 122, 218)
HSL	hsl(222, 65%, 59%)
HSV	hsv(222, 63%, 85%)
CMYK	cmyk(62.8%, 44%, 0%, 14.5%)
CIE-LAB	lab(52.65, 15.68, -53.51)
CIE-LCH	lch(52.65, 55.76, 286.34°)
OKLab	oklab(59.72% -0.014 -0.1527)
OKLCH	oklch(59.72% 0.153 264.8)
XYZ	xyz(23.0034, 20.7283, 69.1048)
Luminance	0.2073 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517ADA #DAB151

analogous

#51BEDA #517ADA #6C51DA

triadic

#517ADA #DA517A #7ADA51

tetradic

#517ADA #DA51BE #DAB151 #51DA6C

square

#517ADA #DA51BE #DAB151 #51DA6C

split-complementary

#517ADA #DA6C51 #BEDA51

monochromatic

#1F4192 #2A58C4 #517ADA #83A1E5 #B6C7EF

Accessibility & contrast

On white

4.08

#517ADA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#517ADA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517ADA

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517ADA	#FFFFFF	#000000	##000000
##517ADA	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D84DE

Deuteranopia (green-blind)

#3778D8

Tritanopia (blue-blind)

#00909F

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #517ada;
/* rgb */ color: rgb(81, 122, 218);
/* oklch */ color: oklch(59.7% 0.153 264.8);

Tailwind

colors: {
  custom: {
    50: '#8ea0e6',
    500: '#517ada',
    950: '#000000',
  },
}

SCSS

$custom: #517ada;
$custom-light: #8ea0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#517ada",
  "rgb": {
    "r": 81,
    "g": 122,
    "b": 218
  },
  "hsl": {
    "h": 222.044,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.59718,
    "c": 0.15338,
    "h": 264.8
  },
  "luminance": 0.2073
}

Semantic roles & 50–950 ramp

primary

#517ADA

secondary

#DECEA8

accent

#B640E8

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #517ADA

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

Preview Lab → · Contrast checker → · Palette generator →