#5B8BF3#5B8BF3

#5B8BF3 is a light, vivid blue. Relative luminance 0.272; OKLCH L 65.3% C 0.164 H 263.8°. Best body text is #000000 at 6.43:1 contrast (WCAG AA passes).

Color values

HEX#5B8BF3
RGBrgb(91, 139, 243)
HSLhsl(221, 86%, 65%)
HSVhsv(221, 63%, 95%)
CMYKcmyk(62.6%, 42.8%, 0%, 4.7%)
CIE-LABlab(59.12, 15.57, -57.10)
CIE-LCHlch(59.12, 59.18, 285.26°)
OKLaboklab(65.28% -0.0177 -0.1629)
OKLCHoklch(65.28% 0.164 263.8)
XYZxyz(29.7190, 27.1577, 88.4524)
Luminance0.2716 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#5B8BF3 #F3C35B
analogous
#5BD7F3 #5B8BF3 #775BF3
triadic
#5B8BF3 #F35B8B #8BF35B
tetradic
#5B8BF3 #F35BD7 #F3C35B #5BF377
square
#5B8BF3 #F35BD7 #F3C35B #5BF377
split-complementary
#5B8BF3 #F3775B #D7F35B
monochromatic
#0E48C5 #2263EF #5B8BF3 #94B3F7 #CDDCFB

Accessibility & contrast

On white

3.26
#5B8BF3 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.43
#5B8BF3 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8BF3
6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##5B8BF3#FFFFFF#000000##000000
##5B8BF31.003.266.436.43
#FFFFFF3.261.0021.0021.00
#0000006.4321.001.001.00
##0000006.4321.001.001.00

Color blindness preview

Protanopia (red-blind)
#5B96F7
Deuteranopia (green-blind)
#4388F1
Tritanopia (blue-blind)
#00A3B3
Achromatopsia (no color)
#8E8E8E

Design tokens & code

CSS
--color: #5b8bf3;
/* rgb */ color: rgb(91, 139, 243);
/* oklch */ color: oklch(65.3% 0.164 263.8);
Tailwind
colors: {
  custom: {
    50: '#96acf7',
    500: '#5b8bf3',
    950: '#000000',
  },
}
SCSS
$custom: #5b8bf3;
$custom-light: #96acf7;
$custom-dark: #000000;
JSON
{
  "hex": "#5b8bf3",
  "rgb": {
    "r": 91,
    "g": 139,
    "b": 243
  },
  "hsl": {
    "h": 221.053,
    "s": 86.364,
    "l": 65.49
  },
  "oklch": {
    "l": 0.6528,
    "c": 0.16383,
    "h": 263.8
  },
  "luminance": 0.2716
}

Semantic roles & 50–950 ramp

primary
#5B8BF3
secondary
#EEDEBB
accent
#9C03E3
background
#F9FAFF
surface
#F2F4FF
border
#CCCED7
text
#0F1017
muted
#7E7F85

Preview Lab

Preview with #5B8BF3

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

Preview Lab → · Contrast checker → · Palette generator →

#5B8BF3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva