#517AEB#517AEB

#517AEB is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.8% C 0.176 H 266.3°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#517AEB
RGB	rgb(81, 122, 235)
HSL	hsl(224, 79%, 62%)
HSV	hsv(224, 66%, 92%)
CMYK	cmyk(65.5%, 48.1%, 0%, 7.8%)
CIE-LAB	lab(53.67, 21.52, -61.42)
CIE-LCH	lch(53.67, 65.08, 289.31°)
OKLab	oklab(60.83% -0.0115 -0.176)
OKLCH	oklch(60.83% 0.176 266.3)
XYZ	xyz(25.3431, 21.6641, 81.4272)
Luminance	0.2167 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517AEB #EBC251

analogous

#51C7EB #517AEB #7551EB

triadic

#517AEB #EB517A #7AEB51

tetradic

#517AEB #EB51C7 #EBC251 #51EB75

square

#517AEB #EB51C7 #EBC251 #51EB75

split-complementary

#517AEB #EB7551 #C7EB51

monochromatic

#143DAE #1A50E5 #517AEB #88A4F1 #BFCEF8

Accessibility & contrast

On white

3.94

#517AEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#517AEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517AEB

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517AEB	#FFFFFF	#000000	##000000
##517AEB	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D88EF

Deuteranopia (green-blind)

#177AE9

Tritanopia (blue-blind)

#0094A7

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #517aeb;
/* rgb */ color: rgb(81, 122, 235);
/* oklch */ color: oklch(60.8% 0.176 266.3);

Tailwind

colors: {
  custom: {
    50: '#919ff2',
    500: '#517aeb',
    950: '#000000',
  },
}

SCSS

$custom: #517aeb;
$custom-light: #919ff2;
$custom-dark: #000000;

JSON

{
  "hex": "#517aeb",
  "rgb": {
    "r": 81,
    "g": 122,
    "b": 235
  },
  "hsl": {
    "h": 224.026,
    "s": 79.381,
    "l": 61.961
  },
  "oklch": {
    "l": 0.60825,
    "c": 0.17637,
    "h": 266.3
  },
  "luminance": 0.21667
}

Semantic roles & 50–950 ramp

primary

#517AEB

secondary

#E8D9B0

accent

#A40ADC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #517AEB

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

Preview Lab → · Contrast checker → · Palette generator →