#428D99#428D99

#428D99 is a mid, moderate teal. Relative luminance 0.225; OKLCH L 60.1% C 0.076 H 209.3°. Best body text is #000000 at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#428D99
RGB	rgb(66, 141, 153)
HSL	hsl(188, 40%, 43%)
HSV	hsv(188, 57%, 60%)
CMYK	cmyk(56.9%, 7.8%, 0%, 40%)
CIE-LAB	lab(54.56, -19.59, -13.43)
CIE-LCH	lch(54.56, 23.75, 214.44°)
OKLab	oklab(60.07% -0.0663 -0.0372)
OKLCH	oklch(60.07% 0.076 209.3)
XYZ	xyz(17.5191, 22.5062, 33.5517)
Luminance	0.2251 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428D99 #994E42

analogous

#429979 #428D99 #426199

triadic

#428D99 #99428D #8D9942

tetradic

#428D99 #794299 #994E42 #619942

square

#428D99 #794299 #994E42 #619942

split-complementary

#428D99 #994261 #997942

monochromatic

#1D3E43 #30666E #428D99 #5EADBA #89C3CC

Accessibility & contrast

On white

3.82

#428D99 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.50

#428D99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428D99

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428D99	#FFFFFF	#000000	##000000
##428D99	1.00	3.82	5.50	5.50
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.50	21.00	1.00	1.00
##000000	5.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#82889A

Deuteranopia (green-blind)

#757E99

Tritanopia (blue-blind)

#009391

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #428d99;
/* rgb */ color: rgb(66, 141, 153);
/* oklch */ color: oklch(60.1% 0.076 209.3);

Tailwind

colors: {
  custom: {
    50: '#7faeb7',
    500: '#428d99',
    950: '#000000',
  },
}

SCSS

$custom: #428d99;
$custom-light: #7faeb7;
$custom-dark: #000000;

JSON

{
  "hex": "#428d99",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 153
  },
  "hsl": {
    "h": 188.276,
    "s": 39.726,
    "l": 42.941
  },
  "oklch": {
    "l": 0.6007,
    "c": 0.07602,
    "h": 209.3
  },
  "luminance": 0.22508
}

Semantic roles & 50–950 ramp

primary

#428D99

secondary

#B78780

accent

#6958D0

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0B1011

muted

#7C7F80

Preview Lab

Preview with #428D99

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

Preview Lab → · Contrast checker → · Palette generator →