#3BB9E0#3BB9E0

#3BB9E0 is a light, vivid cyan. Relative luminance 0.410; OKLCH L 73.4% C 0.120 H 223.1°. Best body text is #000000 at 9.20:1 contrast (WCAG AA passes).

Color values

HEX#3BB9E0
RGBrgb(59, 185, 224)
HSLhsl(194, 73%, 55%)
HSVhsv(194, 74%, 88%)
CMYKcmyk(73.7%, 17.4%, 0%, 12.2%)
CIE-LABlab(70.18, -21.46, -29.37)
CIE-LCHlch(70.18, 36.38, 233.84°)
OKLaboklab(73.41% -0.0878 -0.0822)
OKLCHoklch(73.41% 0.12 223.1)
XYZxyz(32.6016, 41.0057, 76.7032)
Luminance0.4101 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3BB9E0 #E0623B
analogous
#3BE0B5 #3BB9E0 #3B66E0
triadic
#3BB9E0 #E03BB9 #B9E03B
tetradic
#3BB9E0 #B53BE0 #E0623B #66E03B
square
#3BB9E0 #B53BE0 #E0623B #66E03B
split-complementary
#3BB9E0 #E03B66 #E0B53B
monochromatic
#166F8B #1E99C0 #3BB9E0 #70CCE8 #A5DFF1

Accessibility & contrast

On white

2.28
#3BB9E0 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.20
#3BB9E0 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3BB9E0
9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3BB9E0#FFFFFF#000000##000000
##3BB9E01.002.289.209.20
#FFFFFF2.281.0021.0021.00
#0000009.2021.001.001.00
##0000009.2021.001.001.00

Color blindness preview

Protanopia (red-blind)
#A3B5E2
Deuteranopia (green-blind)
#8CA5E0
Tritanopia (blue-blind)
#00C5C6
Achromatopsia (no color)
#ACACAC

Design tokens & code

CSS
--color: #3bb9e0;
/* rgb */ color: rgb(59, 185, 224);
/* oklch */ color: oklch(73.4% 0.120 223.1);
Tailwind
colors: {
  custom: {
    50: '#88cee9',
    500: '#3bb9e0',
    950: '#000000',
  },
}
SCSS
$custom: #3bb9e0;
$custom-light: #88cee9;
$custom-dark: #000000;
JSON
{
  "hex": "#3bb9e0",
  "rgb": {
    "r": 59,
    "g": 185,
    "b": 224
  },
  "hsl": {
    "h": 194.182,
    "s": 72.687,
    "l": 55.49
  },
  "oklch": {
    "l": 0.7341,
    "c": 0.12032,
    "h": 223.1
  },
  "luminance": 0.4101
}

Semantic roles & 50–950 ramp

primary
#3BB9E0
secondary
#DEA999
accent
#6438EF
background
#F9FCFE
surface
#F1F9FD
border
#CBD2D5
text
#0D1316
muted
#7E8284

Preview Lab

Preview with #3BB9E0

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

Preview Lab → · Contrast checker → · Palette generator →

#3BB9E0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva