#42837B#42837B

#42837B is a mid, moderate teal. Relative luminance 0.188; OKLCH L 56.5% C 0.068 H 185.0°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX#42837B
RGBrgb(66, 131, 123)
HSLhsl(173, 33%, 39%)
HSVhsv(173, 50%, 51%)
CMYKcmyk(49.6%, 0%, 6.1%, 48.6%)
CIE-LABlab(50.48, -22.87, -2.09)
CIE-LCHlch(50.48, 22.97, 185.22°)
OKLaboklab(56.46% -0.0678 -0.006)
OKLCHoklch(56.46% 0.068 185)
XYZxyz(13.9367, 18.8197, 21.6332)
Luminance0.1882 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42837B #83424A
analogous
#42835A #42837B #426A83
triadic
#42837B #7B4283 #837B42
tetradic
#42837B #5A4283 #83424A #6A8342
square
#42837B #5A4283 #83424A #6A8342
split-complementary
#42837B #83426A #835A42
monochromatic
#19322F #2D5A55 #42837B #58ABA0 #80BFB7

Accessibility & contrast

On white

4.41
#42837B on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.76
#42837B on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #42837B
4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42837B#FFFFFF#000000##000000
##42837B1.004.414.764.76
#FFFFFF4.411.0021.0021.00
#0000004.7621.001.001.00
##0000004.7621.001.001.00

Color blindness preview

Protanopia (red-blind)
#7D7D7B
Deuteranopia (green-blind)
#73757C
Tritanopia (blue-blind)
#218580
Achromatopsia (no color)
#787878

Design tokens & code

CSS
--color: #42837b;
/* rgb */ color: rgb(66, 131, 123);
/* oklch */ color: oklch(56.5% 0.068 185.0);
Tailwind
colors: {
  custom: {
    50: '#7ca7a1',
    500: '#42837b',
    950: '#000000',
  },
}
SCSS
$custom: #42837b;
$custom-light: #7ca7a1;
$custom-dark: #000000;
JSON
{
  "hex": "#42837b",
  "rgb": {
    "r": 66,
    "g": 131,
    "b": 123
  },
  "hsl": {
    "h": 172.615,
    "s": 32.995,
    "l": 38.627
  },
  "oklch": {
    "l": 0.56462,
    "c": 0.06809,
    "h": 185
  },
  "luminance": 0.18821
}

Semantic roles & 50–950 ramp

primary
#42837B
secondary
#AA777D
accent
#5F6CC9
background
#F7FAF9
surface
#EEF4F2
border
#C9CECC
text
#0A0F0E
muted
#7C7F7E

Preview Lab

Preview with #42837B

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

Preview Lab → · Contrast checker → · Palette generator →

#42837B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva