#518EE9#518EE9

#518EE9 is a light, vivid blue. Relative luminance 0.270; OKLCH L 64.9% C 0.151 H 258.3°. Best body text is #000000 at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#518EE9
RGB	rgb(81, 142, 233)
HSL	hsl(216, 78%, 62%)
HSV	hsv(216, 65%, 91%)
CMYK	cmyk(65.2%, 39.1%, 0%, 8.6%)
CIE-LAB	lab(58.95, 8.71, -51.86)
CIE-LCH	lch(58.95, 52.58, 279.53°)
OKLab	oklab(64.85% -0.0307 -0.1476)
OKLCH	oklch(64.85% 0.151 258.3)
XYZ	xyz(27.7690, 26.9758, 80.8184)
Luminance	0.2698 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518EE9 #E9AC51

analogous

#51DAE9 #518EE9 #6051E9

triadic

#518EE9 #E9518E #8EE951

tetradic

#518EE9 #E951DA #E9AC51 #51E960

square

#518EE9 #E951DA #E9AC51 #51E960

split-complementary

#518EE9 #E96051 #DAE951

monochromatic

#1651AA #1C6BE0 #518EE9 #87B1F0 #BED5F7

Accessibility & contrast

On white

3.28

#518EE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.40

#518EE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518EE9

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518EE9	#FFFFFF	#000000	##000000
##518EE9	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)

#6596ED

Deuteranopia (green-blind)

#4F87E7

Tritanopia (blue-blind)

#00A3B0

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #518ee9;
/* rgb */ color: rgb(81, 142, 233);
/* oklch */ color: oklch(64.9% 0.151 258.3);

Tailwind

colors: {
  custom: {
    50: '#90aef0',
    500: '#518ee9',
    950: '#000000',
  },
}

SCSS

$custom: #518ee9;
$custom-light: #90aef0;
$custom-dark: #000000;

JSON

{
  "hex": "#518ee9",
  "rgb": {
    "r": 81,
    "g": 142,
    "b": 233
  },
  "hsl": {
    "h": 215.921,
    "s": 77.551,
    "l": 61.569
  },
  "oklch": {
    "l": 0.64854,
    "c": 0.15078,
    "h": 258.3
  },
  "luminance": 0.26979
}

Semantic roles & 50–950 ramp

primary

#518EE9

secondary

#E7D0AF

accent

#870CDA

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #518EE9

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

Preview Lab → · Contrast checker → · Palette generator →