#42C5CC#42C5CC

#42C5CC is a light, moderate teal. Relative luminance 0.455; OKLCH L 75.6% C 0.111 H 200.2°. Best body text is #000000 at 10.09:1 contrast (WCAG AA passes).

Color values

HEX#42C5CC
RGBrgb(66, 197, 204)
HSLhsl(183, 58%, 53%)
HSVhsv(183, 68%, 80%)
CMYKcmyk(67.6%, 3.4%, 0%, 20%)
CIE-LABlab(73.19, -32.62, -13.89)
CIE-LCHlch(73.19, 35.45, 203.07°)
OKLaboklab(75.65% -0.1045 -0.0385)
OKLCHoklch(75.65% 0.111 200.2)
XYZxyz(33.1073, 45.4466, 64.1423)
Luminance0.4545 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42C5CC #CC4942
analogous
#42CC8E #42C5CC #4280CC
triadic
#42C5CC #CC42C5 #C5CC42
tetradic
#42C5CC #8E42CC #CC4942 #80CC42
square
#42C5CC #8E42CC #CC4942 #80CC42
split-complementary
#42C5CC #CC4280 #CC8E42
monochromatic
#1F7074 #2C9EA4 #42C5CC #72D4D9 #A2E3E6

Accessibility & contrast

On white

2.08
#42C5CC on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.09
#42C5CC on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C5CC
10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42C5CC#FFFFFF#000000##000000
##42C5CC1.002.0810.0910.09
#FFFFFF2.081.0021.0021.00
#00000010.0921.001.001.00
##00000010.0921.001.001.00

Color blindness preview

Protanopia (red-blind)
#B7BCCD
Deuteranopia (green-blind)
#A2ADCD
Tritanopia (blue-blind)
#00CCC7
Achromatopsia (no color)
#B4B4B4

Design tokens & code

CSS
--color: #42c5cc;
/* rgb */ color: rgb(66, 197, 204);
/* oklch */ color: oklch(75.6% 0.111 200.2);
Tailwind
colors: {
  custom: {
    50: '#89d7db',
    500: '#42c5cc',
    950: '#000000',
  },
}
SCSS
$custom: #42c5cc;
$custom-light: #89d7db;
$custom-dark: #000000;
JSON
{
  "hex": "#42c5cc",
  "rgb": {
    "r": 66,
    "g": 197,
    "b": 204
  },
  "hsl": {
    "h": 183.043,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.75646,
    "c": 0.1114,
    "h": 200.2
  },
  "luminance": 0.4545
}

Semantic roles & 50–950 ramp

primary
#42C5CC
secondary
#D39A97
accent
#4F47E1
background
#F9FDFD
surface
#F1FAFB
border
#CBD3D4
text
#0D1415
muted
#7E8383

Preview Lab

Preview with #42C5CC

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

Preview Lab → · Contrast checker → · Palette generator →

#42C5CC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva