#428B8A#428B8A

#428B8A is a mid, moderate teal. Relative luminance 0.215; OKLCH L 59.0% C 0.073 H 194.2°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#428B8A
RGB	rgb(66, 139, 138)
HSL	hsl(179, 36%, 40%)
HSV	hsv(179, 53%, 55%)
CMYK	cmyk(52.5%, 0%, 0.7%, 45.5%)
CIE-LAB	lab(53.45, -22.89, -6.43)
CIE-LCH	lch(53.45, 23.77, 195.70°)
OKLab	oklab(59.01% -0.0706 -0.0178)
OKLCH	oklch(59.01% 0.073 194.2)
XYZ	xyz(16.0649, 21.4570, 27.3348)
Luminance	0.2146 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428B8A #8B4243

analogous

#428B65 #428B8A #42678B

triadic

#428B8A #8A428B #8B8A42

tetradic

#428B8A #65428B #8B4243 #678B42

square

#428B8A #65428B #8B4243 #678B42

split-complementary

#428B8A #8B4267 #8B6542

monochromatic

#1B3838 #2E6261 #428B8A #5AB1AF #83C4C3

Accessibility & contrast

On white

3.97

#428B8A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#428B8A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428B8A

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428B8A	#FFFFFF	#000000	##000000
##428B8A	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#83858A

Deuteranopia (green-blind)

#777C8B

Tritanopia (blue-blind)

#0A8F8A

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #428b8a;
/* rgb */ color: rgb(66, 139, 138);
/* oklch */ color: oklch(59.0% 0.073 194.2);

Tailwind

colors: {
  custom: {
    50: '#7dadac',
    500: '#428b8a',
    950: '#000000',
  },
}

SCSS

$custom: #428b8a;
$custom-light: #7dadac;
$custom-dark: #000000;

JSON

{
  "hex": "#428b8a",
  "rgb": {
    "r": 66,
    "g": 139,
    "b": 138
  },
  "hsl": {
    "h": 179.178,
    "s": 35.61,
    "l": 40.196
  },
  "oklch": {
    "l": 0.5901,
    "c": 0.07279,
    "h": 194.2
  },
  "luminance": 0.21458
}

Semantic roles & 50–950 ramp

primary

#428B8A

secondary

#AF7A7B

accent

#5C5ECC

background

#F7FAFA

surface

#EEF4F4

border

#C9CECE

text

#0A1010

muted

#7C7F7F

Preview Lab

Preview with #428B8A

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

Preview Lab → · Contrast checker → · Palette generator →