#3888B9#3888B9

#3888B9 is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 59.9% C 0.107 H 239.2°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX#3888B9
RGBrgb(56, 136, 185)
HSLhsl(203, 54%, 47%)
HSVhsv(203, 70%, 73%)
CMYKcmyk(69.7%, 26.5%, 0%, 27.5%)
CIE-LABlab(53.97, -8.29, -32.74)
CIE-LCHlch(53.97, 33.77, 255.79°)
OKLaboklab(59.93% -0.0551 -0.0923)
OKLCHoklch(59.93% 0.107 239.2)
XYZxyz(19.1886, 21.9498, 49.1150)
Luminance0.2195 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3888B9 #B96938
analogous
#38B9AA #3888B9 #3847B9
triadic
#3888B9 #B93888 #88B938
tetradic
#3888B9 #AA38B9 #B96938 #47B938
square
#3888B9 #AA38B9 #B96938 #47B938
split-complementary
#3888B9 #B93847 #B9AA38
monochromatic
#1C435B #2A658A #3888B9 #5FA4CF #8EBFDD

Accessibility & contrast

On white

3.90
#3888B9 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.39
#3888B9 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3888B9
5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3888B9#FFFFFF#000000##000000
##3888B91.003.905.395.39
#FFFFFF3.901.0021.0021.00
#0000005.3921.001.001.00
##0000005.3921.001.001.00

Color blindness preview

Protanopia (red-blind)
#7188BB
Deuteranopia (green-blind)
#607BB8
Tritanopia (blue-blind)
#009499
Achromatopsia (no color)
#818181

Design tokens & code

CSS
--color: #3888b9;
/* rgb */ color: rgb(56, 136, 185);
/* oklch */ color: oklch(59.9% 0.107 239.2);
Tailwind
colors: {
  custom: {
    50: '#7eaace',
    500: '#3888b9',
    950: '#000000',
  },
}
SCSS
$custom: #3888b9;
$custom-light: #7eaace;
$custom-dark: #000000;
JSON
{
  "hex": "#3888b9",
  "rgb": {
    "r": 56,
    "g": 136,
    "b": 185
  },
  "hsl": {
    "h": 202.791,
    "s": 53.527,
    "l": 47.255
  },
  "oklch": {
    "l": 0.59927,
    "c": 0.10745,
    "h": 239.2
  },
  "luminance": 0.21952
}

Semantic roles & 50–950 ramp

primary
#3888B9
secondary
#C89E85
accent
#824BDD
background
#F8FAFC
surface
#EFF4F9
border
#CACED2
text
#0B1013
muted
#7C7F82

Preview Lab

Preview with #3888B9

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

Preview Lab → · Contrast checker → · Palette generator →

#3888B9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva