#42BBB5#42BBB5

#42BBB5 is a light, moderate teal. Relative luminance 0.400; OKLCH L 72.4% C 0.106 H 190.4°. Best body text is #000000 at 9.01:1 contrast (WCAG AA passes).

Color values

HEX#42BBB5
RGBrgb(66, 187, 181)
HSLhsl(177, 48%, 50%)
HSVhsv(177, 65%, 73%)
CMYKcmyk(64.7%, 0%, 3.2%, 26.7%)
CIE-LABlab(69.49, -34.41, -6.84)
CIE-LCHlch(69.49, 35.09, 191.24°)
OKLaboklab(72.42% -0.1043 -0.0191)
OKLCHoklch(72.42% 0.106 190.4)
XYZxyz(28.3538, 40.0320, 49.9397)
Luminance0.4003 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42BBB5 #BB4248
analogous
#42BB79 #42BBB5 #4284BB
triadic
#42BBB5 #B542BB #BBB542
tetradic
#42BBB5 #7942BB #BB4248 #84BB42
square
#42BBB5 #7942BB #BB4248 #84BB42
split-complementary
#42BBB5 #BB4284 #BB7942
monochromatic
#22615D #328E89 #42BBB5 #6ECCC7 #9CDCD9

Accessibility & contrast

On white

2.33
#42BBB5 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.01
#42BBB5 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BBB5
9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42BBB5#FFFFFF#000000##000000
##42BBB51.002.339.019.01
#FFFFFF2.331.0021.0021.00
#0000009.0121.001.001.00
##0000009.0121.001.001.00

Color blindness preview

Protanopia (red-blind)
#B0B2B5
Deuteranopia (green-blind)
#9EA4B6
Tritanopia (blue-blind)
#00C0B9
Achromatopsia (no color)
#AAAAAA

Design tokens & code

CSS
--color: #42bbb5;
/* rgb */ color: rgb(66, 187, 181);
/* oklch */ color: oklch(72.4% 0.106 190.4);
Tailwind
colors: {
  custom: {
    50: '#86d0cb',
    500: '#42bbb5',
    950: '#000000',
  },
}
SCSS
$custom: #42bbb5;
$custom-light: #86d0cb;
$custom-dark: #000000;
JSON
{
  "hex": "#42bbb5",
  "rgb": {
    "r": 66,
    "g": 187,
    "b": 181
  },
  "hsl": {
    "h": 177.025,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.72423,
    "c": 0.106,
    "h": 190.4
  },
  "luminance": 0.40035
}

Semantic roles & 50–950 ramp

primary
#42BBB5
secondary
#C89193
accent
#5057D7
background
#F8FCFC
surface
#F0F9F8
border
#CBD2D1
text
#0C1413
muted
#7D8282

Preview Lab

Preview with #42BBB5

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

Preview Lab → · Contrast checker → · Palette generator →

#42BBB5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva