#428A8D#428A8D

#428A8D is a mid, moderate teal. Relative luminance 0.213; OKLCH L 58.9% C 0.072 H 199.0°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX#428A8D
RGBrgb(66, 138, 141)
HSLhsl(182, 36%, 41%)
HSVhsv(182, 53%, 55%)
CMYKcmyk(53.2%, 2.1%, 0%, 44.7%)
CIE-LABlab(53.23, -21.52, -8.49)
CIE-LCHlch(53.23, 23.13, 201.54°)
OKLaboklab(58.87% -0.068 -0.0235)
OKLCHoklch(58.87% 0.072 199)
XYZxyz(16.1410, 21.2568, 28.4465)
Luminance0.2126 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#428A8D #8D4542
analogous
#428D6A #428A8D #42648D
triadic
#428A8D #8D428A #8A8D42
tetradic
#428A8D #6A428D #8D4542 #648D42
square
#428A8D #6A428D #8D4542 #648D42
split-complementary
#428A8D #8D4264 #8D6A42
monochromatic
#1B383A #2E6163 #428A8D #5AAEB2 #84C3C5

Accessibility & contrast

On white

4.00
#428A8D on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.25
#428A8D on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428A8D
5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##428A8D#FFFFFF#000000##000000
##428A8D1.004.005.255.25
#FFFFFF4.001.0021.0021.00
#0000005.2521.001.001.00
##0000005.2521.001.001.00

Color blindness preview

Protanopia (red-blind)
#81848D
Deuteranopia (green-blind)
#757B8D
Tritanopia (blue-blind)
#048E8B
Achromatopsia (no color)
#7F7F7F

Design tokens & code

CSS
--color: #428a8d;
/* rgb */ color: rgb(66, 138, 141);
/* oklch */ color: oklch(58.9% 0.072 199.0);
Tailwind
colors: {
  custom: {
    50: '#7dacae',
    500: '#428a8d',
    950: '#000000',
  },
}
SCSS
$custom: #428a8d;
$custom-light: #7dacae;
$custom-dark: #000000;
JSON
{
  "hex": "#428a8d",
  "rgb": {
    "r": 66,
    "g": 138,
    "b": 141
  },
  "hsl": {
    "h": 182.4,
    "s": 36.232,
    "l": 40.588
  },
  "oklch": {
    "l": 0.58867,
    "c": 0.07198,
    "h": 199
  },
  "luminance": 0.21258
}

Semantic roles & 50–950 ramp

primary
#428A8D
secondary
#B07D7B
accent
#605CCC
background
#F7FAFA
surface
#EEF4F4
border
#C9CECE
text
#0A1010
muted
#7C7F7F

Preview Lab

Preview with #428A8D

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

Preview Lab → · Contrast checker → · Palette generator →

#428A8D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva