#517FE2#517FE2

#517FE2 is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.3% C 0.158 H 263.6°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#517FE2
RGB	rgb(81, 127, 226)
HSL	hsl(221, 71%, 60%)
HSV	hsv(221, 64%, 89%)
CMYK	cmyk(64.2%, 43.8%, 0%, 11.4%)
CIE-LAB	lab(54.47, 15.36, -55.11)
CIE-LCH	lch(54.47, 57.21, 285.58°)
OKLab	oklab(61.26% -0.0175 -0.1574)
OKLCH	oklch(61.26% 0.158 263.6)
XYZ	xyz(24.7054, 22.4167, 74.9617)
Luminance	0.2242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517FE2 #E2B451

analogous

#51C7E2 #517FE2 #6C51E2

triadic

#517FE2 #E2517F #7FE251

tetradic

#517FE2 #E251C7 #E2B451 #51E26C

square

#517FE2 #E251C7 #E2B451 #51E26C

split-complementary

#517FE2 #E26C51 #C7E251

monochromatic

#1A449E #235BD3 #517FE2 #85A6EB #BACCF3

Accessibility & contrast

On white

3.83

#517FE2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#517FE2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517FE2

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517FE2	#FFFFFF	#000000	##000000
##517FE2	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5089E6

Deuteranopia (green-blind)

#387CE0

Tritanopia (blue-blind)

#0096A5

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #517fe2;
/* rgb */ color: rgb(81, 127, 226);
/* oklch */ color: oklch(61.3% 0.158 263.6);

Tailwind

colors: {
  custom: {
    50: '#8fa3ec',
    500: '#517fe2',
    950: '#000000',
  },
}

SCSS

$custom: #517fe2;
$custom-light: #8fa3ec;
$custom-dark: #000000;

JSON

{
  "hex": "#517fe2",
  "rgb": {
    "r": 81,
    "g": 127,
    "b": 226
  },
  "hsl": {
    "h": 220.966,
    "s": 71.429,
    "l": 60.196
  },
  "oklch": {
    "l": 0.61262,
    "c": 0.15833,
    "h": 263.6
  },
  "luminance": 0.22419
}

Semantic roles & 50–950 ramp

primary

#517FE2

secondary

#E3D2AC

accent

#9612D3

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #517FE2

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

Preview Lab → · Contrast checker → · Palette generator →