#517CE0#517CE0

#517CE0 is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.5% C 0.159 H 264.6°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#517CE0
RGB	rgb(81, 124, 224)
HSL	hsl(222, 70%, 60%)
HSV	hsv(222, 64%, 88%)
CMYK	cmyk(63.8%, 44.6%, 0%, 12.2%)
CIE-LAB	lab(53.54, 16.51, -55.47)
CIE-LCH	lch(53.54, 57.87, 286.58°)
OKLab	oklab(60.51% -0.015 -0.1585)
OKLCH	oklch(60.51% 0.159 264.6)
XYZ	xyz(24.0509, 21.5442, 73.3975)
Luminance	0.2155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517CE0 #E0B551

analogous

#51C4E0 #517CE0 #6E51E0

triadic

#517CE0 #E0517C #7CE051

tetradic

#517CE0 #E051C4 #E0B551 #51E06E

square

#517CE0 #E051C4 #E0B551 #51E06E

split-complementary

#517CE0 #E06E51 #C4E051

monochromatic

#1C429B #2558CF #517CE0 #85A3E9 #B9CAF3

Accessibility & contrast

On white

3.96

#517CE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#517CE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517CE0

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517CE0	#FFFFFF	#000000	##000000
##517CE0	1.00	3.96	5.31	5.31
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C87E4

Deuteranopia (green-blind)

#347ADE

Tritanopia (blue-blind)

#0093A3

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #517ce0;
/* rgb */ color: rgb(81, 124, 224);
/* oklch */ color: oklch(60.5% 0.159 264.6);

Tailwind

colors: {
  custom: {
    50: '#8fa1ea',
    500: '#517ce0',
    950: '#000000',
  },
}

SCSS

$custom: #517ce0;
$custom-light: #8fa1ea;
$custom-dark: #000000;

JSON

{
  "hex": "#517ce0",
  "rgb": {
    "r": 81,
    "g": 124,
    "b": 224
  },
  "hsl": {
    "h": 221.958,
    "s": 69.756,
    "l": 59.804
  },
  "oklch": {
    "l": 0.60513,
    "c": 0.15916,
    "h": 264.6
  },
  "luminance": 0.21546
}

Semantic roles & 50–950 ramp

primary

#517CE0

secondary

#E2D1AB

accent

#B73BED

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #517CE0

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

Preview Lab → · Contrast checker → · Palette generator →