#428E99#428E99

#428E99 is a mid, moderate teal. Relative luminance 0.228; OKLCH L 60.3% C 0.076 H 208.0°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#428E99
RGB	rgb(66, 142, 153)
HSL	hsl(188, 40%, 43%)
HSV	hsv(188, 57%, 60%)
CMYK	cmyk(56.9%, 7.2%, 0%, 40%)
CIE-LAB	lab(54.87, -20.12, -12.97)
CIE-LCH	lch(54.87, 23.93, 212.81°)
OKLab	oklab(60.32% -0.0675 -0.0359)
OKLCH	oklch(60.32% 0.076 208)
XYZ	xyz(17.6672, 22.8025, 33.6011)
Luminance	0.2280 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428E99 #994D42

analogous

#429978 #428E99 #426299

triadic

#428E99 #99428E #8E9942

tetradic

#428E99 #784299 #994D42 #629942

square

#428E99 #784299 #994D42 #629942

split-complementary

#428E99 #994262 #997842

monochromatic

#1D3F43 #30666E #428E99 #5EAEBA #89C4CC

Accessibility & contrast

On white

3.78

#428E99 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#428E99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428E99

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428E99	#FFFFFF	#000000	##000000
##428E99	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#83899A

Deuteranopia (green-blind)

#767F99

Tritanopia (blue-blind)

#009491

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #428e99;
/* rgb */ color: rgb(66, 142, 153);
/* oklch */ color: oklch(60.3% 0.076 208.0);

Tailwind

colors: {
  custom: {
    50: '#7fafb7',
    500: '#428e99',
    950: '#000000',
  },
}

SCSS

$custom: #428e99;
$custom-light: #7fafb7;
$custom-dark: #000000;

JSON

{
  "hex": "#428e99",
  "rgb": {
    "r": 66,
    "g": 142,
    "b": 153
  },
  "hsl": {
    "h": 187.586,
    "s": 39.726,
    "l": 42.941
  },
  "oklch": {
    "l": 0.60318,
    "c": 0.07642,
    "h": 208
  },
  "luminance": 0.22804
}

Semantic roles & 50–950 ramp

primary

#428E99

secondary

#B78780

accent

#6758D0

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0B1011

muted

#7C7F80

Preview Lab

Preview with #428E99

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

Preview Lab → · Contrast checker → · Palette generator →