#428E9C#428E9C

#428E9C is a mid, moderate teal. Relative luminance 0.229; OKLCH L 60.4% C 0.077 H 211.3°. Best body text is #000000 at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#428E9C
RGB	rgb(66, 142, 156)
HSL	hsl(189, 41%, 44%)
HSV	hsv(189, 58%, 61%)
CMYK	cmyk(57.7%, 9%, 0%, 38.8%)
CIE-LAB	lab(54.97, -19.22, -14.54)
CIE-LCH	lch(54.97, 24.10, 217.10°)
OKLab	oklab(60.44% -0.0662 -0.0402)
OKLCH	oklch(60.44% 0.077 211.3)
XYZ	xyz(17.9181, 22.9028, 34.9225)
Luminance	0.2291 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428E9C #9C5042

analogous

#429C7D #428E9C #42619C

triadic

#428E9C #9C428E #8E9C42

tetradic

#428E9C #7D429C #9C5042 #619C42

square

#428E9C #7D429C #9C5042 #619C42

split-complementary

#428E9C #9C4261 #9C7D42

monochromatic

#1E4046 #306771 #428E9C #60ADBC #8BC3CE

Accessibility & contrast

On white

3.76

#428E9C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.58

#428E9C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428E9C

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428E9C	#FFFFFF	#000000	##000000
##428E9C	1.00	3.76	5.58	5.58
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.58	21.00	1.00	1.00
##000000	5.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#82899D

Deuteranopia (green-blind)

#757F9C

Tritanopia (blue-blind)

#009492

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #428e9c;
/* rgb */ color: rgb(66, 142, 156);
/* oklch */ color: oklch(60.4% 0.077 211.3);

Tailwind

colors: {
  custom: {
    50: '#7fafb9',
    500: '#428e9c',
    950: '#000000',
  },
}

SCSS

$custom: #428e9c;
$custom-light: #7fafb9;
$custom-dark: #000000;

JSON

{
  "hex": "#428e9c",
  "rgb": {
    "r": 66,
    "g": 142,
    "b": 156
  },
  "hsl": {
    "h": 189.333,
    "s": 40.541,
    "l": 43.529
  },
  "oklch": {
    "l": 0.60435,
    "c": 0.07748,
    "h": 211.3
  },
  "luminance": 0.22905
}

Semantic roles & 50–950 ramp

primary

#428E9C

secondary

#B98A81

accent

#6A57D0

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0B1011

muted

#7C7F80

Preview Lab

Preview with #428E9C

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

Preview Lab → · Contrast checker → · Palette generator →