#517FE6#517FE6

#517FE6 is a mid, vivid blue. Relative luminance 0.226; OKLCH L 61.5% C 0.164 H 264.1°. Best body text is #000000 at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#517FE6
RGB	rgb(81, 127, 230)
HSL	hsl(221, 75%, 61%)
HSV	hsv(221, 65%, 90%)
CMYK	cmyk(64.8%, 44.8%, 0%, 9.8%)
CIE-LAB	lab(54.70, 16.73, -56.97)
CIE-LCH	lch(54.70, 59.38, 286.37°)
OKLab	oklab(61.52% -0.0169 -0.1628)
OKLCH	oklch(61.52% 0.164 264.1)
XYZ	xyz(25.2606, 22.6389, 77.8861)
Luminance	0.2264 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517FE6 #E6B851

analogous

#51C9E6 #517FE6 #6D51E6

triadic

#517FE6 #E6517F #7FE651

tetradic

#517FE6 #E651C9 #E6B851 #51E66D

square

#517FE6 #E651C9 #E6B851 #51E66D

split-complementary

#517FE6 #E66D51 #C9E651

monochromatic

#1843A5 #1F59DA #517FE6 #87A6EE #BCCEF5

Accessibility & contrast

On white

3.80

#517FE6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.53

#517FE6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517FE6

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517FE6	#FFFFFF	#000000	##000000
##517FE6	1.00	3.80	5.53	5.53
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.53	21.00	1.00	1.00
##000000	5.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D8AEA

Deuteranopia (green-blind)

#327CE4

Tritanopia (blue-blind)

#0097A7

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #517fe6;
/* rgb */ color: rgb(81, 127, 230);
/* oklch */ color: oklch(61.5% 0.164 264.1);

Tailwind

colors: {
  custom: {
    50: '#90a3ee',
    500: '#517fe6',
    950: '#000000',
  },
}

SCSS

$custom: #517fe6;
$custom-light: #90a3ee;
$custom-dark: #000000;

JSON

{
  "hex": "#517fe6",
  "rgb": {
    "r": 81,
    "g": 127,
    "b": 230
  },
  "hsl": {
    "h": 221.477,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.61515,
    "c": 0.16371,
    "h": 264.1
  },
  "luminance": 0.22641
}

Semantic roles & 50–950 ramp

primary

#517FE6

secondary

#E5D4AD

accent

#990ED7

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #517FE6

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

Preview Lab → · Contrast checker → · Palette generator →