#3188BD#3188BD

#3188BD is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.9% C 0.115 H 239.8°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX#3188BD
RGBrgb(49, 136, 189)
HSLhsl(203, 59%, 47%)
HSVhsv(203, 74%, 74%)
CMYKcmyk(74.1%, 28%, 0%, 25.9%)
CIE-LABlab(53.96, -7.89, -35.07)
CIE-LCHlch(53.96, 35.94, 257.32°)
OKLaboklab(59.92% -0.0577 -0.0991)
OKLCHoklch(59.92% 0.115 239.8)
XYZxyz(19.2525, 21.9332, 51.3531)
Luminance0.2193 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3188BD #BD6631
analogous
#31BDAC #3188BD #3142BD
triadic
#3188BD #BD3188 #88BD31
tetradic
#3188BD #AC31BD #BD6631 #42BD31
square
#3188BD #AC31BD #BD6631 #42BD31
split-complementary
#3188BD #BD3142 #BDAC31
monochromatic
#18425C #24658C #3188BD #58A5D4 #88BFE0

Accessibility & contrast

On white

3.90
#3188BD on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.39
#3188BD on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3188BD
5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3188BD#FFFFFF#000000##000000
##3188BD1.003.905.395.39
#FFFFFF3.901.0021.0021.00
#0000005.3921.001.001.00
##0000005.3921.001.001.00

Color blindness preview

Protanopia (red-blind)
#6F88BF
Deuteranopia (green-blind)
#5C7BBC
Tritanopia (blue-blind)
#00959A
Achromatopsia (no color)
#818181

Design tokens & code

CSS
--color: #3188bd;
/* rgb */ color: rgb(49, 136, 189);
/* oklch */ color: oklch(59.9% 0.115 239.8);
Tailwind
colors: {
  custom: {
    50: '#7caad1',
    500: '#3188bd',
    950: '#000000',
  },
}
SCSS
$custom: #3188bd;
$custom-light: #7caad1;
$custom-dark: #000000;
JSON
{
  "hex": "#3188bd",
  "rgb": {
    "r": 49,
    "g": 136,
    "b": 189
  },
  "hsl": {
    "h": 202.714,
    "s": 58.824,
    "l": 46.667
  },
  "oklch": {
    "l": 0.59917,
    "c": 0.11464,
    "h": 239.8
  },
  "luminance": 0.21935
}

Semantic roles & 50–950 ramp

primary
#3188BD
secondary
#CA9C80
accent
#8146E2
background
#F8FAFC
surface
#EFF4F9
border
#CACED2
text
#0B1014
muted
#7C7F82

Preview Lab

Preview with #3188BD

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

Preview Lab → · Contrast checker → · Palette generator →

#3188BD Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva