#518AE9#518AE9

#518AE9 is a light, vivid blue. Relative luminance 0.258; OKLCH L 64.0% C 0.155 H 260.0°. Best body text is #000000 at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#518AE9
RGB	rgb(81, 138, 233)
HSL	hsl(218, 78%, 62%)
HSV	hsv(218, 65%, 91%)
CMYK	cmyk(65.2%, 40.8%, 0%, 8.6%)
CIE-LAB	lab(57.85, 11.10, -53.61)
CIE-LCH	lch(57.85, 54.74, 281.70°)
OKLab	oklab(64% -0.0268 -0.1528)
OKLCH	oklch(64% 0.155 260)
XYZ	xyz(27.1846, 25.8068, 80.6236)
Luminance	0.2581 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518AE9 #E9B051

analogous

#51D6E9 #518AE9 #6451E9

triadic

#518AE9 #E9518A #8AE951

tetradic

#518AE9 #E951D6 #E9B051 #51E964

square

#518AE9 #E951D6 #E9B051 #51E964

split-complementary

#518AE9 #E96451 #D6E951

monochromatic

#164DAA #1C66E0 #518AE9 #87AFF0 #BED3F7

Accessibility & contrast

On white

3.41

#518AE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.16

#518AE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518AE9

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518AE9	#FFFFFF	#000000	##000000
##518AE9	1.00	3.41	6.16	6.16
#FFFFFF	3.41	1.00	21.00	21.00
#000000	6.16	21.00	1.00	1.00
##000000	6.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E93ED

Deuteranopia (green-blind)

#4784E7

Tritanopia (blue-blind)

#00A0AE

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #518ae9;
/* rgb */ color: rgb(81, 138, 233);
/* oklch */ color: oklch(64.0% 0.155 260.0);

Tailwind

colors: {
  custom: {
    50: '#90abf0',
    500: '#518ae9',
    950: '#000000',
  },
}

SCSS

$custom: #518ae9;
$custom-light: #90abf0;
$custom-dark: #000000;

JSON

{
  "hex": "#518ae9",
  "rgb": {
    "r": 81,
    "g": 138,
    "b": 233
  },
  "hsl": {
    "h": 217.5,
    "s": 77.551,
    "l": 61.569
  },
  "oklch": {
    "l": 0.64002,
    "c": 0.15514,
    "h": 260
  },
  "luminance": 0.25809
}

Semantic roles & 50–950 ramp

primary

#518AE9

secondary

#E7D2AF

accent

#8D0CDA

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #518AE9

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

Preview Lab → · Contrast checker → · Palette generator →