#428D8B#428D8B

#428D8B is a mid, moderate teal. Relative luminance 0.221; OKLCH L 59.5% C 0.074 H 193.0°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#428D8B
RGB	rgb(66, 141, 139)
HSL	hsl(178, 36%, 41%)
HSV	hsv(178, 53%, 55%)
CMYK	cmyk(53.2%, 0%, 1.4%, 44.7%)
CIE-LAB	lab(54.10, -23.64, -6.04)
CIE-LCH	lch(54.10, 24.39, 194.33°)
OKLab	oklab(59.55% -0.0725 -0.0167)
OKLCH	oklch(59.55% 0.074 193)
XYZ	xyz(16.4299, 22.0706, 27.8153)
Luminance	0.2207 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428D8B #8D4244

analogous

#428D65 #428D8B #42698D

triadic

#428D8B #8B428D #8D8B42

tetradic

#428D8B #65428D #8D4244 #698D42

square

#428D8B #65428D #8D4244 #698D42

split-complementary

#428D8B #8D4269 #8D6542

monochromatic

#1B3A39 #2E6362 #428D8B #5AB2B0 #84C5C4

Accessibility & contrast

On white

3.88

#428D8B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#428D8B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428D8B

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428D8B	#FFFFFF	#000000	##000000
##428D8B	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)

#85878B

Deuteranopia (green-blind)

#797D8C

Tritanopia (blue-blind)

#06918C

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #428d8b;
/* rgb */ color: rgb(66, 141, 139);
/* oklch */ color: oklch(59.5% 0.074 193.0);

Tailwind

colors: {
  custom: {
    50: '#7daeac',
    500: '#428d8b',
    950: '#000000',
  },
}

SCSS

$custom: #428d8b;
$custom-light: #7daeac;
$custom-dark: #000000;

JSON

{
  "hex": "#428d8b",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 139
  },
  "hsl": {
    "h": 178.4,
    "s": 36.232,
    "l": 40.588
  },
  "oklch": {
    "l": 0.59549,
    "c": 0.0744,
    "h": 193
  },
  "luminance": 0.22072
}

Semantic roles & 50–950 ramp

primary

#428D8B

secondary

#B07B7C

accent

#5C5FCC

background

#F8FAFA

surface

#EFF4F4

border

#CACECE

text

#0A1010

muted

#7C7F7F

Preview Lab

Preview with #428D8B

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

Preview Lab → · Contrast checker → · Palette generator →