#5B90EB#5B90EB

#5B90EB is a light, vivid blue. Relative luminance 0.282; OKLCH L 65.8% C 0.148 H 260.6°. Best body text is #000000 at 6.63:1 contrast (WCAG AA passes).

Color values

HEX#5B90EB
RGBrgb(91, 144, 235)
HSLhsl(218, 78%, 64%)
HSVhsv(218, 61%, 92%)
CMYKcmyk(61.3%, 38.7%, 0%, 7.8%)
CIE-LABlab(60.04, 9.93, -51.21)
CIE-LCHlch(60.04, 52.16, 280.97°)
OKLaboklab(65.85% -0.0242 -0.1456)
OKLCHoklch(65.85% 0.148 260.6)
XYZxyz(29.2778, 28.1662, 82.4749)
Luminance0.2817 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#5B90EB #EBB65B
analogous
#5BD8EB #5B90EB #6E5BEB
triadic
#5B90EB #EB5B90 #90EB5B
tetradic
#5B90EB #EB5BD8 #EBB65B #5BEB6E
square
#5B90EB #EB5BD8 #EBB65B #5BEB6E
split-complementary
#5B90EB #EB6E5B #D8EB5B
monochromatic
#1651B5 #246BE4 #5B90EB #92B5F2 #C8DAF8

Accessibility & contrast

On white

3.17
#5B90EB on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.63
#5B90EB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B90EB
6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##5B90EB#FFFFFF#000000##000000
##5B90EB1.003.176.636.63
#FFFFFF3.171.0021.0021.00
#0000006.6321.001.001.00
##0000006.6321.001.001.00

Color blindness preview

Protanopia (red-blind)
#6898EF
Deuteranopia (green-blind)
#548BE9
Tritanopia (blue-blind)
#00A5B2
Achromatopsia (no color)
#919191

Design tokens & code

CSS
--color: #5b90eb;
/* rgb */ color: rgb(91, 144, 235);
/* oklch */ color: oklch(65.8% 0.148 260.6);
Tailwind
colors: {
  custom: {
    50: '#95b0f2',
    500: '#5b90eb',
    950: '#000000',
  },
}
SCSS
$custom: #5b90eb;
$custom-light: #95b0f2;
$custom-dark: #000000;
JSON
{
  "hex": "#5b90eb",
  "rgb": {
    "r": 91,
    "g": 144,
    "b": 235
  },
  "hsl": {
    "h": 217.917,
    "s": 78.261,
    "l": 63.922
  },
  "oklch": {
    "l": 0.6585,
    "c": 0.14755,
    "h": 260.6
  },
  "luminance": 0.28169
}

Semantic roles & 50–950 ramp

primary
#5B90EB
secondary
#EAD8B8
accent
#8E0BDB
background
#F9FAFE
surface
#F2F4FD
border
#CCCED5
text
#0E1017
muted
#7E7F85

Preview Lab

Preview with #5B90EB

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

Preview Lab → · Contrast checker → · Palette generator →

#5B90EB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva