#3C91CC#3C91CC

#3C91CC is a light, vivid cyan. Relative luminance 0.256; OKLCH L 63.1% C 0.120 H 242.5°. Best body text is #000000 at 6.11:1 contrast (WCAG AA passes).

Color values

HEX#3C91CC
RGBrgb(60, 145, 204)
HSLhsl(205, 59%, 52%)
HSVhsv(205, 71%, 80%)
CMYKcmyk(70.6%, 28.9%, 0%, 20%)
CIE-LABlab(57.63, -6.30, -37.79)
CIE-LCHlch(57.63, 38.31, 260.54°)
OKLaboklab(63.14% -0.0555 -0.1068)
OKLCHoklch(63.14% 0.12 242.5)
XYZxyz(22.8838, 25.5686, 60.8442)
Luminance0.2557 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3C91CC #CC773C
analogous
#3CCCBF #3C91CC #3C49CC
triadic
#3C91CC #CC3C91 #91CC3C
tetradic
#3C91CC #BF3CCC #CC773C #49CC3C
square
#3C91CC #BF3CCC #CC773C #49CC3C
split-complementary
#3C91CC #CC3C49 #CCBF3C
monochromatic
#1D4E70 #2A70A1 #3C91CC #6DACD9 #9DC8E5

Accessibility & contrast

On white

3.43
#3C91CC on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.11
#3C91CC on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3C91CC
6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3C91CC#FFFFFF#000000##000000
##3C91CC1.003.436.116.11
#FFFFFF3.431.0021.0021.00
#0000006.1121.001.001.00
##0000006.1121.001.001.00

Color blindness preview

Protanopia (red-blind)
#7692CF
Deuteranopia (green-blind)
#6284CB
Tritanopia (blue-blind)
#00A0A6
Achromatopsia (no color)
#8A8A8A

Design tokens & code

CSS
--color: #3c91cc;
/* rgb */ color: rgb(60, 145, 204);
/* oklch */ color: oklch(63.1% 0.120 242.5);
Tailwind
colors: {
  custom: {
    50: '#83b1dc',
    500: '#3c91cc',
    950: '#000000',
  },
}
SCSS
$custom: #3c91cc;
$custom-light: #83b1dc;
$custom-dark: #000000;
JSON
{
  "hex": "#3c91cc",
  "rgb": {
    "r": 60,
    "g": 145,
    "b": 204
  },
  "hsl": {
    "h": 204.583,
    "s": 58.537,
    "l": 51.765
  },
  "oklch": {
    "l": 0.63138,
    "c": 0.12037,
    "h": 242.5
  },
  "luminance": 0.25571
}

Semantic roles & 50–950 ramp

primary
#3C91CC
secondary
#D1AC92
accent
#8646E2
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #3C91CC

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

Preview Lab → · Contrast checker → · Palette generator →

#3C91CC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva