#518DEE#518DEE

#518DEE is a light, vivid blue. Relative luminance 0.270; OKLCH L 64.9% C 0.158 H 259.6°. Best body text is #000000 at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#518DEE
RGB	rgb(81, 141, 238)
HSL	hsl(217, 82%, 63%)
HSV	hsv(217, 66%, 93%)
CMYK	cmyk(66%, 40.8%, 0%, 6.7%)
CIE-LAB	lab(58.95, 11.01, -54.64)
CIE-LCH	lch(58.95, 55.74, 281.40°)
OKLab	oklab(64.94% -0.0287 -0.1558)
OKLCH	oklch(64.94% 0.158 259.6)
XYZ	xyz(28.3453, 26.9693, 84.5841)
Luminance	0.2697 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518DEE #EEB251

analogous

#51DCEE #518DEE #6351EE

triadic

#518DEE #EE518D #8DEE51

tetradic

#518DEE #EE51DC #EEB251 #51EE63

square

#518DEE #EE51DC #EEB251 #51EE63

split-complementary

#518DEE #EE6351 #DCEE51

monochromatic

#114FB3 #1968E9 #518DEE #89B2F3 #C1D6F9

Accessibility & contrast

On white

3.28

#518DEE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.39

#518DEE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518DEE

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518DEE	#FFFFFF	#000000	##000000
##518DEE	1.00	3.28	6.39	6.39
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.39	21.00	1.00	1.00
##000000	6.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6096F2

Deuteranopia (green-blind)

#4887EC

Tritanopia (blue-blind)

#00A3B2

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #518dee;
/* rgb */ color: rgb(81, 141, 238);
/* oklch */ color: oklch(64.9% 0.158 259.6);

Tailwind

colors: {
  custom: {
    50: '#91adf4',
    500: '#518dee',
    950: '#000000',
  },
}

SCSS

$custom: #518dee;
$custom-light: #91adf4;
$custom-dark: #000000;

JSON

{
  "hex": "#518dee",
  "rgb": {
    "r": 81,
    "g": 141,
    "b": 238
  },
  "hsl": {
    "h": 217.07,
    "s": 82.199,
    "l": 62.549
  },
  "oklch": {
    "l": 0.64937,
    "c": 0.15841,
    "h": 259.6
  },
  "luminance": 0.26972
}

Semantic roles & 50–950 ramp

primary

#518DEE

secondary

#EAD4B1

accent

#8C07DF

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #518DEE

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

Preview Lab → · Contrast checker → · Palette generator →