#518CF3#518CF3

#518CF3 is a light, vivid blue. Relative luminance 0.270; OKLCH L 65.0% C 0.166 H 260.7°. Best body text is #000000 at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#518CF3
RGB	rgb(81, 140, 243)
HSL	hsl(218, 87%, 64%)
HSV	hsv(218, 67%, 95%)
CMYK	cmyk(66.7%, 42.4%, 0%, 4.7%)
CIE-LAB	lab(58.95, 13.33, -57.39)
CIE-LCH	lch(58.95, 58.92, 283.07°)
OKLab	oklab(65.03% -0.0268 -0.1639)
OKLCH	oklch(65.03% 0.166 260.7)
XYZ	xyz(28.9433, 26.9737, 88.4577)
Luminance	0.2698 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518CF3 #F3B851

analogous

#51DDF3 #518CF3 #6751F3

triadic

#518CF3 #F3518C #8CF351

tetradic

#518CF3 #F351DD #F3B851 #51F367

square

#518CF3 #F351DD #F3B851 #51F367

split-complementary

#518CF3 #F36751 #DDF351

monochromatic

#0D4DBD #1866EF #518CF3 #8AB2F7 #C4D8FB

Accessibility & contrast

On white

3.28

#518CF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.40

#518CF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518CF3

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518CF3	#FFFFFF	#000000	##000000
##518CF3	1.00	3.28	6.40	6.40
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.40	21.00	1.00	1.00
##000000	6.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B96F7

Deuteranopia (green-blind)

#4087F1

Tritanopia (blue-blind)

#00A4B4

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #518cf3;
/* rgb */ color: rgb(81, 140, 243);
/* oklch */ color: oklch(65.0% 0.166 260.7);

Tailwind

colors: {
  custom: {
    50: '#92adf7',
    500: '#518cf3',
    950: '#000000',
  },
}

SCSS

$custom: #518cf3;
$custom-light: #92adf7;
$custom-dark: #000000;

JSON

{
  "hex": "#518cf3",
  "rgb": {
    "r": 81,
    "g": 140,
    "b": 243
  },
  "hsl": {
    "h": 218.148,
    "s": 87.097,
    "l": 63.529
  },
  "oklch": {
    "l": 0.65029,
    "c": 0.16608,
    "h": 260.7
  },
  "luminance": 0.26977
}

Semantic roles & 50–950 ramp

primary

#518CF3

secondary

#EDD8B3

accent

#9102E4

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #518CF3

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

Preview Lab → · Contrast checker → · Palette generator →