#517FEC#517FEC

#517FEC is a mid, vivid blue. Relative luminance 0.230; OKLCH L 61.9% C 0.172 H 264.7°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#517FEC
RGB	rgb(81, 127, 236)
HSL	hsl(222, 80%, 62%)
HSV	hsv(222, 66%, 93%)
CMYK	cmyk(65.7%, 46.2%, 0%, 7.5%)
CIE-LAB	lab(55.05, 18.80, -59.75)
CIE-LCH	lch(55.05, 62.64, 287.46°)
OKLab	oklab(61.9% -0.0159 -0.171)
OKLCH	oklch(61.9% 0.172 264.7)
XYZ	xyz(26.1177, 22.9817, 82.4001)
Luminance	0.2298 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517FEC #ECBE51

analogous

#51CCEC #517FEC #7151EC

triadic

#517FEC #EC517F #7FEC51

tetradic

#517FEC #EC51CC #ECBE51 #51EC71

square

#517FEC #EC51CC #ECBE51 #51EC71

split-complementary

#517FEC #EC7151 #CCEC51

monochromatic

#1342AF #1A56E6 #517FEC #88A8F2 #BFD0F8

Accessibility & contrast

On white

3.75

#517FEC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.60

#517FEC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517FEC

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517FEC	#FFFFFF	#000000	##000000
##517FEC	1.00	3.75	5.60	5.60
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.60	21.00	1.00	1.00
##000000	5.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#488BF0

Deuteranopia (green-blind)

#287DEA

Tritanopia (blue-blind)

#0098AA

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #517fec;
/* rgb */ color: rgb(81, 127, 236);
/* oklch */ color: oklch(61.9% 0.172 264.7);

Tailwind

colors: {
  custom: {
    50: '#91a3f3',
    500: '#517fec',
    950: '#000000',
  },
}

SCSS

$custom: #517fec;
$custom-light: #91a3f3;
$custom-dark: #000000;

JSON

{
  "hex": "#517fec",
  "rgb": {
    "r": 81,
    "g": 127,
    "b": 236
  },
  "hsl": {
    "h": 222.194,
    "s": 80.311,
    "l": 62.157
  },
  "oklch": {
    "l": 0.61902,
    "c": 0.17175,
    "h": 264.7
  },
  "luminance": 0.22984
}

Semantic roles & 50–950 ramp

primary

#517FEC

secondary

#E9D8B0

accent

#9E09DD

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #517FEC

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

Preview Lab → · Contrast checker → · Palette generator →