#428E8A#428E8A

#428E8A is a mid, moderate teal. Relative luminance 0.223; OKLCH L 59.8% C 0.075 H 190.7°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#428E8A
RGB	rgb(66, 142, 138)
HSL	hsl(177, 37%, 41%)
HSV	hsv(177, 54%, 56%)
CMYK	cmyk(53.5%, 0%, 2.8%, 44.3%)
CIE-LAB	lab(54.38, -24.42, -5.04)
CIE-LCH	lch(54.38, 24.94, 191.67°)
OKLab	oklab(59.77% -0.0741 -0.014)
OKLCH	oklch(59.77% 0.075 190.7)
XYZ	xyz(16.5053, 22.3377, 27.4816)
Luminance	0.2234 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428E8A #8E4246

analogous

#428E64 #428E8A #426C8E

triadic

#428E8A #8A428E #8E8A42

tetradic

#428E8A #64428E #8E4246 #6C8E42

square

#428E8A #64428E #8E4246 #6C8E42

split-complementary

#428E8A #8E426C #8E6442

monochromatic

#1B3A39 #2F6461 #428E8A #5BB3AE #84C6C3

Accessibility & contrast

On white

3.84

#428E8A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#428E8A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428E8A

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428E8A	#FFFFFF	#000000	##000000
##428E8A	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#87878A

Deuteranopia (green-blind)

#7A7E8B

Tritanopia (blue-blind)

#07918D

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #428e8a;
/* rgb */ color: rgb(66, 142, 138);
/* oklch */ color: oklch(59.8% 0.075 190.7);

Tailwind

colors: {
  custom: {
    50: '#7eafac',
    500: '#428e8a',
    950: '#000000',
  },
}

SCSS

$custom: #428e8a;
$custom-light: #7eafac;
$custom-dark: #000000;

JSON

{
  "hex": "#428e8a",
  "rgb": {
    "r": 66,
    "g": 142,
    "b": 138
  },
  "hsl": {
    "h": 176.842,
    "s": 36.538,
    "l": 40.784
  },
  "oklch": {
    "l": 0.59766,
    "c": 0.07544,
    "h": 190.7
  },
  "luminance": 0.22339
}

Semantic roles & 50–950 ramp

primary

#428E8A

secondary

#B17B7E

accent

#5B61CD

background

#F8FAFA

surface

#EFF4F4

border

#CACECE

text

#0A1010

muted

#7C7F7F

Preview Lab

Preview with #428E8A

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

Preview Lab → · Contrast checker → · Palette generator →