#517FEB#517FEB

#517FEB is a mid, vivid blue. Relative luminance 0.229; OKLCH L 61.8% C 0.170 H 264.6°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#517FEB
RGB	rgb(81, 127, 235)
HSL	hsl(222, 79%, 62%)
HSV	hsv(222, 66%, 92%)
CMYK	cmyk(65.5%, 46%, 0%, 7.8%)
CIE-LAB	lab(54.99, 18.45, -59.29)
CIE-LCH	lch(54.99, 62.10, 287.29°)
OKLab	oklab(61.84% -0.0161 -0.1697)
OKLCH	oklch(61.84% 0.17 264.6)
XYZ	xyz(25.9729, 22.9237, 81.6371)
Luminance	0.2293 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517FEB #EBBD51

analogous

#51CCEB #517FEB #7051EB

triadic

#517FEB #EB517F #7FEB51

tetradic

#517FEB #EB51CC #EBBD51 #51EB70

square

#517FEB #EB51CC #EBBD51 #51EB70

split-complementary

#517FEB #EB7051 #CCEB51

monochromatic

#1442AE #1A57E5 #517FEB #88A7F1 #BFD0F8

Accessibility & contrast

On white

3.76

#517FEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#517FEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517FEB

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517FEB	#FFFFFF	#000000	##000000
##517FEB	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#498BEF

Deuteranopia (green-blind)

#2A7DE9

Tritanopia (blue-blind)

#0098AA

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #517feb;
/* rgb */ color: rgb(81, 127, 235);
/* oklch */ color: oklch(61.8% 0.170 264.6);

Tailwind

colors: {
  custom: {
    50: '#91a3f2',
    500: '#517feb',
    950: '#000000',
  },
}

SCSS

$custom: #517feb;
$custom-light: #91a3f2;
$custom-dark: #000000;

JSON

{
  "hex": "#517feb",
  "rgb": {
    "r": 81,
    "g": 127,
    "b": 235
  },
  "hsl": {
    "h": 222.078,
    "s": 79.381,
    "l": 61.961
  },
  "oklch": {
    "l": 0.61837,
    "c": 0.17042,
    "h": 264.6
  },
  "luminance": 0.22926
}

Semantic roles & 50–950 ramp

primary

#517FEB

secondary

#E8D7B0

accent

#9D0ADC

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #517FEB

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

Preview Lab → · Contrast checker → · Palette generator →