#517EDD#517EDD

#517EDD is a mid, vivid blue. Relative luminance 0.219; OKLCH L 60.7% C 0.153 H 263.4°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#517EDD
RGB	rgb(81, 126, 221)
HSL	hsl(221, 67%, 59%)
HSV	hsv(221, 63%, 87%)
CMYK	cmyk(63.3%, 43%, 0%, 13.3%)
CIE-LAB	lab(53.91, 14.26, -53.19)
CIE-LCH	lch(53.91, 55.07, 285.01°)
OKLab	oklab(60.74% -0.0174 -0.1517)
OKLCH	oklch(60.74% 0.153 263.4)
XYZ	xyz(23.9008, 21.8893, 71.3581)
Luminance	0.2189 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517EDD #DDB051

analogous

#51C4DD #517EDD #6A51DD

triadic

#517EDD #DD517E #7EDD51

tetradic

#517EDD #DD51C4 #DDB051 #51DD6A

square

#517EDD #DD51C4 #DDB051 #51DD6A

split-complementary

#517EDD #DD6A51 #C4DD51

monochromatic

#1D4496 #275BC9 #517EDD #84A4E7 #B7CAF1

Accessibility & contrast

On white

3.90

#517EDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#517EDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517EDD

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517EDD	#FFFFFF	#000000	##000000
##517EDD	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5288E1

Deuteranopia (green-blind)

#3C7BDB

Tritanopia (blue-blind)

#0094A3

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #517edd;
/* rgb */ color: rgb(81, 126, 221);
/* oklch */ color: oklch(60.7% 0.153 263.4);

Tailwind

colors: {
  custom: {
    50: '#8fa2e8',
    500: '#517edd',
    950: '#000000',
  },
}

SCSS

$custom: #517edd;
$custom-light: #8fa2e8;
$custom-dark: #000000;

JSON

{
  "hex": "#517edd",
  "rgb": {
    "r": 81,
    "g": 126,
    "b": 221
  },
  "hsl": {
    "h": 220.714,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.60741,
    "c": 0.15274,
    "h": 263.4
  },
  "luminance": 0.21891
}

Semantic roles & 50–950 ramp

primary

#517EDD

secondary

#E0CFAA

accent

#B33EEA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0D0F16

muted

#7E7E84

Preview Lab

Preview with #517EDD

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

Preview Lab → · Contrast checker → · Palette generator →