#518BDE#518BDE

#518BDE is a light, vivid blue. Relative luminance 0.255; OKLCH L 63.6% C 0.140 H 257.5°. Best body text is #000000 at 6.10:1 contrast (WCAG AA passes).

Color values

HEX#518BDE
RGBrgb(81, 139, 222)
HSLhsl(215, 68%, 59%)
HSVhsv(215, 64%, 87%)
CMYKcmyk(63.5%, 37.4%, 0%, 12.9%)
CIE-LABlab(57.55, 6.76, -47.96)
CIE-LCHlch(57.55, 48.44, 278.02°)
OKLaboklab(63.57% -0.0302 -0.1362)
OKLCHoklch(63.57% 0.14 257.5)
XYZxyz(25.8061, 25.4860, 72.6524)
Luminance0.2549 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#518BDE #DEA451
analogous
#51D2DE #518BDE #5E51DE
triadic
#518BDE #DE518B #8BDE51
tetradic
#518BDE #DE51D2 #DEA451 #51DE5E
square
#518BDE #DE51D2 #DEA451 #51DE5E
split-complementary
#518BDE #DE5E51 #D2DE51
monochromatic
#1D4F98 #276ACB #518BDE #84ADE8 #B8D0F2

Accessibility & contrast

On white

3.44
#518BDE on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.10
#518BDE on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #518BDE
6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##518BDE#FFFFFF#000000##000000
##518BDE1.003.446.106.10
#FFFFFF3.441.0021.0021.00
#0000006.1021.001.001.00
##0000006.1021.001.001.00

Color blindness preview

Protanopia (red-blind)
#6791E1
Deuteranopia (green-blind)
#5384DC
Tritanopia (blue-blind)
#009EAA
Achromatopsia (no color)
#8A8A8A

Design tokens & code

CSS
--color: #518bde;
/* rgb */ color: rgb(81, 139, 222);
/* oklch */ color: oklch(63.6% 0.140 257.5);
Tailwind
colors: {
  custom: {
    50: '#8eace9',
    500: '#518bde',
    950: '#000000',
  },
}
SCSS
$custom: #518bde;
$custom-light: #8eace9;
$custom-dark: #000000;
JSON
{
  "hex": "#518bde",
  "rgb": {
    "r": 81,
    "g": 139,
    "b": 222
  },
  "hsl": {
    "h": 215.319,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.63574,
    "c": 0.13956,
    "h": 257.5
  },
  "luminance": 0.25488
}

Semantic roles & 50–950 ramp

primary
#518BDE
secondary
#E1CAAA
accent
#A33DEB
background
#F9FAFE
surface
#F2F4FD
border
#CCCED5
text
#0D1016
muted
#7E7F84

Preview Lab

Preview with #518BDE

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

Preview Lab → · Contrast checker → · Palette generator →

#518BDE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva