#3BB9E1#3BB9E1

#3BB9E1 is a light, vivid cyan. Relative luminance 0.411; OKLCH L 73.5% C 0.121 H 223.7°. Best body text is #000000 at 9.21:1 contrast (WCAG AA passes).

Color values

HEX#3BB9E1
RGBrgb(59, 185, 225)
HSLhsl(194, 73%, 56%)
HSVhsv(194, 74%, 88%)
CMYKcmyk(73.8%, 17.8%, 0%, 11.8%)
CIE-LABlab(70.22, -21.14, -29.86)
CIE-LCHlch(70.22, 36.58, 234.70°)
OKLaboklab(73.45% -0.0875 -0.0836)
OKLCHoklch(73.45% 0.121 223.7)
XYZxyz(32.7376, 41.0601, 77.4196)
Luminance0.4106 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3BB9E1 #E1633B
analogous
#3BE1B6 #3BB9E1 #3B66E1
triadic
#3BB9E1 #E13BB9 #B9E13B
tetradic
#3BB9E1 #B63BE1 #E1633B #66E13B
square
#3BB9E1 #B63BE1 #E1633B #66E13B
split-complementary
#3BB9E1 #E13B66 #E1B63B
monochromatic
#15708C #1E9AC1 #3BB9E1 #70CCE9 #A5DFF1

Accessibility & contrast

On white

2.28
#3BB9E1 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.21
#3BB9E1 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3BB9E1
9.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3BB9E1#FFFFFF#000000##000000
##3BB9E11.002.289.219.21
#FFFFFF2.281.0021.0021.00
#0000009.2121.001.001.00
##0000009.2121.001.001.00

Color blindness preview

Protanopia (red-blind)
#A2B5E3
Deuteranopia (green-blind)
#8CA5E1
Tritanopia (blue-blind)
#00C5C6
Achromatopsia (no color)
#ACACAC

Design tokens & code

CSS
--color: #3bb9e1;
/* rgb */ color: rgb(59, 185, 225);
/* oklch */ color: oklch(73.5% 0.121 223.7);
Tailwind
colors: {
  custom: {
    50: '#88ceea',
    500: '#3bb9e1',
    950: '#000000',
  },
}
SCSS
$custom: #3bb9e1;
$custom-light: #88ceea;
$custom-dark: #000000;
JSON
{
  "hex": "#3bb9e1",
  "rgb": {
    "r": 59,
    "g": 185,
    "b": 225
  },
  "hsl": {
    "h": 194.458,
    "s": 73.451,
    "l": 55.686
  },
  "oklch": {
    "l": 0.73454,
    "c": 0.12101,
    "h": 223.7
  },
  "luminance": 0.41064
}

Semantic roles & 50–950 ramp

primary
#3BB9E1
secondary
#DEAA99
accent
#6438F0
background
#F9FCFE
surface
#F1F9FD
border
#CBD2D5
text
#0D1316
muted
#7E8284

Preview Lab

Preview with #3BB9E1

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

Preview Lab → · Contrast checker → · Palette generator →

#3BB9E1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva