#5B99EB#5B99EB

#5B99EB is a light, vivid cyan. Relative luminance 0.310; OKLCH L 67.8% C 0.138 H 256.0°. Best body text is #000000 at 7.20:1 contrast (WCAG AA passes).

Color values

HEX#5B99EB
RGBrgb(91, 153, 235)
HSLhsl(214, 78%, 64%)
HSVhsv(214, 61%, 92%)
CMYKcmyk(61.3%, 34.9%, 0%, 7.8%)
CIE-LABlab(62.51, 4.64, -47.30)
CIE-LCHlch(62.51, 47.53, 275.60°)
OKLaboklab(67.77% -0.0334 -0.134)
OKLCHoklch(67.77% 0.138 256)
XYZxyz(30.6956, 31.0019, 82.9475)
Luminance0.3100 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#5B99EB #EBAD5B
analogous
#5BE1EB #5B99EB #655BEB
triadic
#5B99EB #EB5B99 #99EB5B
tetradic
#5B99EB #EB5BE1 #EBAD5B #5BEB65
square
#5B99EB #EB5BE1 #EBAD5B #5BEB65
split-complementary
#5B99EB #EB655B #E1EB5B
monochromatic
#165BB5 #2477E4 #5B99EB #92BBF2 #C8DDF8

Accessibility & contrast

On white

2.92
#5B99EB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.20
#5B99EB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B99EB
7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##5B99EB#FFFFFF#000000##000000
##5B99EB1.002.927.207.20
#FFFFFF2.921.0021.0021.00
#0000007.2021.001.001.00
##0000007.2021.001.001.00

Color blindness preview

Protanopia (red-blind)
#769FEE
Deuteranopia (green-blind)
#6291E9
Tritanopia (blue-blind)
#00ACB7
Achromatopsia (no color)
#979797

Design tokens & code

CSS
--color: #5b99eb;
/* rgb */ color: rgb(91, 153, 235);
/* oklch */ color: oklch(67.8% 0.138 256.0);
Tailwind
colors: {
  custom: {
    50: '#95b6f2',
    500: '#5b99eb',
    950: '#000000',
  },
}
SCSS
$custom: #5b99eb;
$custom-light: #95b6f2;
$custom-dark: #000000;
JSON
{
  "hex": "#5b99eb",
  "rgb": {
    "r": 91,
    "g": 153,
    "b": 235
  },
  "hsl": {
    "h": 214.167,
    "s": 78.261,
    "l": 63.922
  },
  "oklch": {
    "l": 0.67772,
    "c": 0.13812,
    "h": 256
  },
  "luminance": 0.31005
}

Semantic roles & 50–950 ramp

primary
#5B99EB
secondary
#EAD4B8
accent
#810BDB
background
#F9FBFE
surface
#F2F6FD
border
#CCD0D5
text
#0E1117
muted
#7E8085

Preview Lab

Preview with #5B99EB

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

Preview Lab → · Contrast checker → · Palette generator →

#5B99EB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva