#518AEF#518AEF

#518AEF is a light, vivid blue. Relative luminance 0.262; OKLCH L 64.4% C 0.163 H 260.9°. Best body text is #000000 at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#518AEF
RGB	rgb(81, 138, 239)
HSL	hsl(218, 83%, 63%)
HSV	hsv(218, 66%, 94%)
CMYK	cmyk(66.1%, 42.3%, 0%, 6.3%)
CIE-LAB	lab(58.18, 13.16, -56.41)
CIE-LCH	lch(58.18, 57.92, 283.13°)
OKLab	oklab(64.37% -0.0257 -0.161)
OKLCH	oklch(64.37% 0.163 260.9)
XYZ	xyz(28.0563, 26.1555, 85.2146)
Luminance	0.2616 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#518AEF #EFB651

analogous

#51D9EF #518AEF #6751EF

triadic

#518AEF #EF518A #8AEF51

tetradic

#518AEF #EF51D9 #EFB651 #51EF67

square

#518AEF #EF51D9 #EFB651 #51EF67

split-complementary

#518AEF #EF6751 #D9EF51

monochromatic

#114CB5 #1964EA #518AEF #89B0F4 #C1D5F9

Accessibility & contrast

On white

3.37

#518AEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.23

#518AEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518AEF

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##518AEF	#FFFFFF	#000000	##000000
##518AEF	1.00	3.37	6.23	6.23
#FFFFFF	3.37	1.00	21.00	21.00
#000000	6.23	21.00	1.00	1.00
##000000	6.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A94F3

Deuteranopia (green-blind)

#4185ED

Tritanopia (blue-blind)

#00A1B1

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #518aef;
/* rgb */ color: rgb(81, 138, 239);
/* oklch */ color: oklch(64.4% 0.163 260.9);

Tailwind

colors: {
  custom: {
    50: '#91abf5',
    500: '#518aef',
    950: '#000000',
  },
}

SCSS

$custom: #518aef;
$custom-light: #91abf5;
$custom-dark: #000000;

JSON

{
  "hex": "#518aef",
  "rgb": {
    "r": 81,
    "g": 138,
    "b": 239
  },
  "hsl": {
    "h": 218.354,
    "s": 83.158,
    "l": 62.745
  },
  "oklch": {
    "l": 0.64366,
    "c": 0.16305,
    "h": 260.9
  },
  "luminance": 0.26158
}

Semantic roles & 50–950 ramp

primary

#518AEF

secondary

#EAD6B1

accent

#9106E0

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #518AEF

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

Preview Lab → · Contrast checker → · Palette generator →