#518FF3#518FF3

#518FF3 is a light, vivid blue. Relative luminance 0.279; OKLCH L 65.7% C 0.163 H 259.5°. Best body text is #000000 at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#518FF3
RGB	rgb(81, 143, 243)
HSL	hsl(217, 87%, 64%)
HSV	hsv(217, 67%, 95%)
CMYK	cmyk(66.7%, 41.2%, 0%, 4.7%)
CIE-LAB	lab(59.76, 11.53, -56.09)
CIE-LCH	lch(59.76, 57.27, 281.62°)
OKLab	oklab(65.66% -0.0296 -0.16)
OKLCH	oklch(65.66% 0.163 259.5)
XYZ	xyz(29.3877, 27.8624, 88.6059)
Luminance	0.2787 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518FF3 #F3B551

analogous

#51E0F3 #518FF3 #6451F3

triadic

#518FF3 #F3518F #8FF351

tetradic

#518FF3 #F351E0 #F3B551 #51F364

square

#518FF3 #F351E0 #F3B551 #51F364

split-complementary

#518FF3 #F36451 #E0F351

monochromatic

#0D50BD #186AEF #518FF3 #8AB4F7 #C4D9FB

Accessibility & contrast

On white

3.19

#518FF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.57

#518FF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518FF3

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518FF3	#FFFFFF	#000000	##000000
##518FF3	1.00	3.19	6.57	6.57
#FFFFFF	3.19	1.00	21.00	21.00
#000000	6.57	21.00	1.00	1.00
##000000	6.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6098F7

Deuteranopia (green-blind)

#4789F1

Tritanopia (blue-blind)

#00A6B5

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #518ff3;
/* rgb */ color: rgb(81, 143, 243);
/* oklch */ color: oklch(65.7% 0.163 259.5);

Tailwind

colors: {
  custom: {
    50: '#92aff7',
    500: '#518ff3',
    950: '#000000',
  },
}

SCSS

$custom: #518ff3;
$custom-light: #92aff7;
$custom-dark: #000000;

JSON

{
  "hex": "#518ff3",
  "rgb": {
    "r": 81,
    "g": 143,
    "b": 243
  },
  "hsl": {
    "h": 217.037,
    "s": 87.097,
    "l": 63.529
  },
  "oklch": {
    "l": 0.65659,
    "c": 0.16275,
    "h": 259.5
  },
  "luminance": 0.27865
}

Semantic roles & 50–950 ramp

primary

#518FF3

secondary

#EDD7B3

accent

#8D02E4

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #518FF3

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

Preview Lab → · Contrast checker → · Palette generator →