#3881CB#3881CB

#3881CB is a mid, vivid cyan. Relative luminance 0.209; OKLCH L 59.3% C 0.135 H 251.4°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX#3881CB
RGBrgb(56, 129, 203)
HSLhsl(210, 59%, 51%)
HSVhsv(210, 72%, 80%)
CMYKcmyk(72.4%, 36.5%, 0%, 20.4%)
CIE-LABlab(52.79, 2.17, -44.87)
CIE-LCHlch(52.79, 44.92, 272.77°)
OKLaboklab(59.28% -0.0429 -0.1277)
OKLCHoklch(59.28% 0.135 251.4)
XYZxyz(20.2566, 20.8508, 59.4454)
Luminance0.2085 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3881CB #CB8238
analogous
#38CBCB #3881CB #3838CB
triadic
#3881CB #CB3881 #81CB38
tetradic
#3881CB #CB38CB #CB8238 #38CB38
square
#3881CB #CB38CB #CB8238 #38CB38
split-complementary
#3881CB #CB3838 #CBCB38
monochromatic
#1C446C #29639D #3881CB #69A0D8 #99BEE4

Accessibility & contrast

On white

4.06
#3881CB on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.17
#3881CB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3881CB
5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3881CB#FFFFFF#000000##000000
##3881CB1.004.065.175.17
#FFFFFF4.061.0021.0021.00
#0000005.1721.001.001.00
##0000005.1721.001.001.00

Color blindness preview

Protanopia (red-blind)
#5F85CE
Deuteranopia (green-blind)
#4978CA
Tritanopia (blue-blind)
#00929C
Achromatopsia (no color)
#7E7E7E

Design tokens & code

CSS
--color: #3881cb;
/* rgb */ color: rgb(56, 129, 203);
/* oklch */ color: oklch(59.3% 0.135 251.4);
Tailwind
colors: {
  custom: {
    50: '#81a5db',
    500: '#3881cb',
    950: '#000000',
  },
}
SCSS
$custom: #3881cb;
$custom-light: #81a5db;
$custom-dark: #000000;
JSON
{
  "hex": "#3881cb",
  "rgb": {
    "r": 56,
    "g": 129,
    "b": 203
  },
  "hsl": {
    "h": 210.204,
    "s": 58.566,
    "l": 50.784
  },
  "oklch": {
    "l": 0.59278,
    "c": 0.13468,
    "h": 251.4
  },
  "luminance": 0.20853
}

Semantic roles & 50–950 ramp

primary
#3881CB
secondary
#D0B08F
accent
#9446E2
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C0F15
muted
#7D7F83

Preview Lab

Preview with #3881CB

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

Preview Lab → · Contrast checker → · Palette generator →

#3881CB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva