#42B7CD#42B7CD

#42B7CD is a light, moderate teal. Relative luminance 0.394; OKLCH L 72.3% C 0.107 H 212.6°. Best body text is #000000 at 8.89:1 contrast (WCAG AA passes).

Color values

HEX#42B7CD
RGBrgb(66, 183, 205)
HSLhsl(189, 58%, 53%)
HSVhsv(189, 68%, 80%)
CMYKcmyk(67.8%, 10.7%, 0%, 19.6%)
CIE-LABlab(69.06, -25.47, -20.67)
CIE-LCHlch(69.06, 32.81, 219.06°)
OKLaboklab(72.33% -0.09 -0.0575)
OKLCHoklch(72.33% 0.107 212.6)
XYZxyz(30.1951, 39.4296, 63.7651)
Luminance0.3943 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42B7CD #CD5842
analogous
#42CD9D #42B7CD #4272CD
triadic
#42B7CD #CD42B7 #B7CD42
tetradic
#42B7CD #9D42CD #CD5842 #72CD42
square
#42B7CD #9D42CD #CD5842 #72CD42
split-complementary
#42B7CD #CD4272 #CD9D42
monochromatic
#1F6876 #2C93A6 #42B7CD #72C9DA #A3DCE7

Accessibility & contrast

On white

2.36
#42B7CD on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.89
#42B7CD on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B7CD
8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42B7CD#FFFFFF#000000##000000
##42B7CD1.002.368.898.89
#FFFFFF2.361.0021.0021.00
#0000008.8921.001.001.00
##0000008.8921.001.001.00

Color blindness preview

Protanopia (red-blind)
#A6B1CE
Deuteranopia (green-blind)
#92A2CD
Tritanopia (blue-blind)
#00C0BE
Achromatopsia (no color)
#A9A9A9

Design tokens & code

CSS
--color: #42b7cd;
/* rgb */ color: rgb(66, 183, 205);
/* oklch */ color: oklch(72.3% 0.107 212.6);
Tailwind
colors: {
  custom: {
    50: '#88cddc',
    500: '#42b7cd',
    950: '#000000',
  },
}
SCSS
$custom: #42b7cd;
$custom-light: #88cddc;
$custom-dark: #000000;
JSON
{
  "hex": "#42b7cd",
  "rgb": {
    "r": 66,
    "g": 183,
    "b": 205
  },
  "hsl": {
    "h": 189.496,
    "s": 58.159,
    "l": 53.137
  },
  "oklch": {
    "l": 0.72329,
    "c": 0.1068,
    "h": 212.6
  },
  "luminance": 0.39433
}

Semantic roles & 50–950 ramp

primary
#42B7CD
secondary
#D3A197
accent
#5F46E1
background
#F9FCFD
surface
#F1F9FB
border
#CBD2D4
text
#0D1315
muted
#7E8283

Preview Lab

Preview with #42B7CD

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

Preview Lab → · Contrast checker → · Palette generator →

#42B7CD Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva