#3B91DD#3B91DD

#3B91DD is a light, vivid cyan. Relative luminance 0.264; OKLCH L 64.0% C 0.141 H 248.7°. Best body text is #000000 at 6.28:1 contrast (WCAG AA passes).

Color values

HEX#3B91DD
RGBrgb(59, 145, 221)
HSLhsl(208, 70%, 55%)
HSVhsv(208, 73%, 87%)
CMYKcmyk(73.3%, 34.4%, 0%, 13.3%)
CIE-LABlab(58.41, -0.49, -46.08)
CIE-LCHlch(58.41, 46.09, 269.39°)
OKLaboklab(64.02% -0.0512 -0.131)
OKLCHoklch(64.02% 0.141 248.7)
XYZxyz(24.9752, 26.3982, 72.1717)
Luminance0.2640 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3B91DD #DD873B
analogous
#3BDDD8 #3B91DD #3B40DD
triadic
#3B91DD #DD3B91 #91DD3B
tetradic
#3B91DD #D83BDD #DD873B #40DD3B
square
#3B91DD #D83BDD #DD873B #40DD3B
split-complementary
#3B91DD #DD3B40 #DDD83B
monochromatic
#175286 #2072BA #3B91DD #6FAEE6 #A3CCEF

Accessibility & contrast

On white

3.34
#3B91DD on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.28
#3B91DD on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B91DD
6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3B91DD#FFFFFF#000000##000000
##3B91DD1.003.346.286.28
#FFFFFF3.341.0021.0021.00
#0000006.2821.001.001.00
##0000006.2821.001.001.00

Color blindness preview

Protanopia (red-blind)
#6E95E0
Deuteranopia (green-blind)
#5786DC
Tritanopia (blue-blind)
#00A3AD
Achromatopsia (no color)
#8C8C8C

Design tokens & code

CSS
--color: #3b91dd;
/* rgb */ color: rgb(59, 145, 221);
/* oklch */ color: oklch(64.0% 0.141 248.7);
Tailwind
colors: {
  custom: {
    50: '#85b0e8',
    500: '#3b91dd',
    950: '#000000',
  },
}
SCSS
$custom: #3b91dd;
$custom-light: #85b0e8;
$custom-dark: #000000;
JSON
{
  "hex": "#3b91dd",
  "rgb": {
    "r": 59,
    "g": 145,
    "b": 221
  },
  "hsl": {
    "h": 208.148,
    "s": 70.435,
    "l": 54.902
  },
  "oklch": {
    "l": 0.64018,
    "c": 0.14061,
    "h": 248.7
  },
  "luminance": 0.26401
}

Semantic roles & 50–950 ramp

primary
#3B91DD
secondary
#DCB898
accent
#8E3BED
background
#F8FAFE
surface
#F0F4FC
border
#CBCED5
text
#0D1016
muted
#7D7F84

Preview Lab

Preview with #3B91DD

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

Preview Lab → · Contrast checker → · Palette generator →

#3B91DD Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva