#517ADF#517ADF

#517ADF is a mid, vivid blue. Relative luminance 0.210; OKLCH L 60.0% C 0.160 H 265.3°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#517ADF
RGB	rgb(81, 122, 223)
HSL	hsl(223, 69%, 60%)
HSV	hsv(223, 64%, 87%)
CMYK	cmyk(63.7%, 45.3%, 0%, 12.5%)
CIE-LAB	lab(52.94, 17.40, -55.86)
CIE-LCH	lch(52.94, 58.51, 287.30°)
OKLab	oklab(60.04% -0.0132 -0.1596)
OKLCH	oklch(60.04% 0.16 265.3)
XYZ	xyz(23.6675, 20.9939, 72.6027)
Luminance	0.2100 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517ADF #DFB651

analogous

#51C1DF #517ADF #6F51DF

triadic

#517ADF #DF517A #7ADF51

tetradic

#517ADF #DF51C1 #DFB651 #51DF6F

square

#517ADF #DF51C1 #DFB651 #51DF6F

split-complementary

#517ADF #DF6F51 #C1DF51

monochromatic

#1C4099 #2656CD #517ADF #85A2E9 #B8C9F2

Accessibility & contrast

On white

4.04

#517ADF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#517ADF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517ADF

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517ADF	#FFFFFF	#000000	##000000
##517ADF	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4985E3

Deuteranopia (green-blind)

#3078DD

Tritanopia (blue-blind)

#0091A2

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #517adf;
/* rgb */ color: rgb(81, 122, 223);
/* oklch */ color: oklch(60.0% 0.160 265.3);

Tailwind

colors: {
  custom: {
    50: '#8f9fe9',
    500: '#517adf',
    950: '#000000',
  },
}

SCSS

$custom: #517adf;
$custom-light: #8f9fe9;
$custom-dark: #000000;

JSON

{
  "hex": "#517adf",
  "rgb": {
    "r": 81,
    "g": 122,
    "b": 223
  },
  "hsl": {
    "h": 222.676,
    "s": 68.932,
    "l": 59.608
  },
  "oklch": {
    "l": 0.60036,
    "c": 0.16018,
    "h": 265.3
  },
  "luminance": 0.20996
}

Semantic roles & 50–950 ramp

primary

#517ADF

secondary

#E1D2AA

accent

#B93CEC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #517ADF

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

Preview Lab → · Contrast checker → · Palette generator →