#428D8A#428D8A

#428D8A is a mid, moderate teal. Relative luminance 0.220; OKLCH L 59.5% C 0.075 H 191.8°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#428D8A
RGB	rgb(66, 141, 138)
HSL	hsl(178, 36%, 41%)
HSV	hsv(178, 53%, 55%)
CMYK	cmyk(53.2%, 0%, 2.1%, 44.7%)
CIE-LAB	lab(54.07, -23.91, -5.51)
CIE-LCH	lch(54.07, 24.54, 192.97°)
OKLab	oklab(59.51% -0.0729 -0.0153)
OKLCH	oklch(59.51% 0.075 191.8)
XYZ	xyz(16.3572, 22.0415, 27.4323)
Luminance	0.2204 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428D8A #8D4245

analogous

#428D64 #428D8A #426A8D

triadic

#428D8A #8A428D #8D8A42

tetradic

#428D8A #64428D #8D4245 #6A8D42

square

#428D8A #64428D #8D4245 #6A8D42

split-complementary

#428D8A #8D426A #8D6442

monochromatic

#1B3A38 #2E6361 #428D8A #5AB2AE #84C5C3

Accessibility & contrast

On white

3.88

#428D8A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#428D8A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428D8A

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428D8A	#FFFFFF	#000000	##000000
##428D8A	1.00	3.88	5.41	5.41
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.41	21.00	1.00	1.00
##000000	5.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#86878A

Deuteranopia (green-blind)

#797D8B

Tritanopia (blue-blind)

#08918C

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #428d8a;
/* rgb */ color: rgb(66, 141, 138);
/* oklch */ color: oklch(59.5% 0.075 191.8);

Tailwind

colors: {
  custom: {
    50: '#7daeac',
    500: '#428d8a',
    950: '#000000',
  },
}

SCSS

$custom: #428d8a;
$custom-light: #7daeac;
$custom-dark: #000000;

JSON

{
  "hex": "#428d8a",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 138
  },
  "hsl": {
    "h": 177.6,
    "s": 36.232,
    "l": 40.588
  },
  "oklch": {
    "l": 0.59514,
    "c": 0.07453,
    "h": 191.8
  },
  "luminance": 0.22043
}

Semantic roles & 50–950 ramp

primary

#428D8A

secondary

#B07B7D

accent

#5C60CC

background

#F8FAFA

surface

#EFF4F4

border

#CACECE

text

#0A1010

muted

#7C7F7F

Preview Lab

Preview with #428D8A

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

Preview Lab → · Contrast checker → · Palette generator →