#428C99#428C99

#428C99 is a mid, moderate teal. Relative luminance 0.222; OKLCH L 59.8% C 0.076 H 210.5°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#428C99
RGB	rgb(66, 140, 153)
HSL	hsl(189, 40%, 43%)
HSV	hsv(189, 57%, 60%)
CMYK	cmyk(56.9%, 8.5%, 0%, 40%)
CIE-LAB	lab(54.25, -19.06, -13.90)
CIE-LCH	lch(54.25, 23.59, 216.10°)
OKLab	oklab(59.82% -0.0652 -0.0384)
OKLCH	oklch(59.82% 0.076 210.5)
XYZ	xyz(17.3723, 22.2127, 33.5028)
Luminance	0.2221 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428C99 #994F42

analogous

#42997B #428C99 #426099

triadic

#428C99 #99428C #8C9942

tetradic

#428C99 #7B4299 #994F42 #609942

square

#428C99 #7B4299 #994F42 #609942

split-complementary

#428C99 #994260 #997B42

monochromatic

#1D3E43 #30656E #428C99 #5EACBA #89C2CC

Accessibility & contrast

On white

3.86

#428C99 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#428C99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428C99

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428C99	#FFFFFF	#000000	##000000
##428C99	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#81879A

Deuteranopia (green-blind)

#747D99

Tritanopia (blue-blind)

#009290

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #428c99;
/* rgb */ color: rgb(66, 140, 153);
/* oklch */ color: oklch(59.8% 0.076 210.5);

Tailwind

colors: {
  custom: {
    50: '#7fadb7',
    500: '#428c99',
    950: '#000000',
  },
}

SCSS

$custom: #428c99;
$custom-light: #7fadb7;
$custom-dark: #000000;

JSON

{
  "hex": "#428c99",
  "rgb": {
    "r": 66,
    "g": 140,
    "b": 153
  },
  "hsl": {
    "h": 188.966,
    "s": 39.726,
    "l": 42.941
  },
  "oklch": {
    "l": 0.59823,
    "c": 0.07567,
    "h": 210.5
  },
  "luminance": 0.22214
}

Semantic roles & 50–950 ramp

primary

#428C99

secondary

#B78880

accent

#6A58D0

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0B1011

muted

#7C7F80

Preview Lab

Preview with #428C99

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

Preview Lab → · Contrast checker → · Palette generator →