#428C8A#428C8A

#428C8A is a mid, moderate teal. Relative luminance 0.217; OKLCH L 59.3% C 0.074 H 193.0°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#428C8A
RGB	rgb(66, 140, 138)
HSL	hsl(178, 36%, 40%)
HSV	hsv(178, 53%, 55%)
CMYK	cmyk(52.9%, 0%, 1.4%, 45.1%)
CIE-LAB	lab(53.76, -23.40, -5.97)
CIE-LCH	lch(53.76, 24.15, 194.31°)
OKLab	oklab(59.26% -0.0718 -0.0165)
OKLCH	oklch(59.26% 0.074 193)
XYZ	xyz(16.2104, 21.7479, 27.3833)
Luminance	0.2175 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428C8A #8C4244

analogous

#428C65 #428C8A #42698C

triadic

#428C8A #8A428C #8C8A42

tetradic

#428C8A #65428C #8C4244 #698C42

square

#428C8A #65428C #8C4244 #698C42

split-complementary

#428C8A #8C4269 #8C6542

monochromatic

#1B3938 #2E6261 #428C8A #5AB1AF #84C5C3

Accessibility & contrast

On white

3.93

#428C8A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#428C8A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428C8A

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428C8A	#FFFFFF	#000000	##000000
##428C8A	1.00	3.93	5.35	5.35
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#84868A

Deuteranopia (green-blind)

#787D8B

Tritanopia (blue-blind)

#09908B

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #428c8a;
/* rgb */ color: rgb(66, 140, 138);
/* oklch */ color: oklch(59.3% 0.074 193.0);

Tailwind

colors: {
  custom: {
    50: '#7daeac',
    500: '#428c8a',
    950: '#000000',
  },
}

SCSS

$custom: #428c8a;
$custom-light: #7daeac;
$custom-dark: #000000;

JSON

{
  "hex": "#428c8a",
  "rgb": {
    "r": 66,
    "g": 140,
    "b": 138
  },
  "hsl": {
    "h": 178.378,
    "s": 35.922,
    "l": 40.392
  },
  "oklch": {
    "l": 0.59262,
    "c": 0.07364,
    "h": 193
  },
  "luminance": 0.21749
}

Semantic roles & 50–950 ramp

primary

#428C8A

secondary

#B07A7C

accent

#5C5FCC

background

#F7FAFA

surface

#EEF4F4

border

#C9CECE

text

#0A1010

muted

#7C7F7F

Preview Lab

Preview with #428C8A

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

Preview Lab → · Contrast checker → · Palette generator →