#428A8A#428A8A

#428A8A is a mid, moderate teal. Relative luminance 0.212; OKLCH L 58.8% C 0.072 H 195.4°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#428A8A
RGB	rgb(66, 138, 138)
HSL	hsl(180, 35%, 40%)
HSV	hsv(180, 52%, 54%)
CMYK	cmyk(52.2%, 0%, 0%, 45.9%)
CIE-LAB	lab(53.13, -22.37, -6.90)
CIE-LCH	lch(53.13, 23.41, 197.14°)
OKLab	oklab(58.76% -0.0694 -0.0191)
OKLCH	oklch(58.76% 0.072 195.4)
XYZ	xyz(15.9208, 21.1687, 27.2868)
Luminance	0.2117 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428A8A #8A4242

analogous

#428A66 #428A8A #42668A

triadic

#428A8A #8A428A #8A8A42

tetradic

#428A8A #66428A #8A4242 #668A42

square

#428A8A #66428A #8A4242 #668A42

split-complementary

#428A8A #8A4266 #8A6642

monochromatic

#1A3737 #2E6161 #428A8A #59B0B0 #83C4C4

Accessibility & contrast

On white

4.01

#428A8A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#428A8A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428A8A

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428A8A	#FFFFFF	#000000	##000000
##428A8A	1.00	4.01	5.23	5.23
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#82848A

Deuteranopia (green-blind)

#767B8B

Tritanopia (blue-blind)

#0B8E8A

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #428a8a;
/* rgb */ color: rgb(66, 138, 138);
/* oklch */ color: oklch(58.8% 0.072 195.4);

Tailwind

colors: {
  custom: {
    50: '#7dacac',
    500: '#428a8a',
    950: '#000000',
  },
}

SCSS

$custom: #428a8a;
$custom-light: #7dacac;
$custom-dark: #000000;

JSON

{
  "hex": "#428a8a",
  "rgb": {
    "r": 66,
    "g": 138,
    "b": 138
  },
  "hsl": {
    "h": 180,
    "s": 35.294,
    "l": 40
  },
  "oklch": {
    "l": 0.58758,
    "c": 0.07197,
    "h": 195.4
  },
  "luminance": 0.2117
}

Semantic roles & 50–950 ramp

primary

#428A8A

secondary

#AE7979

accent

#5C5CCB

background

#F7FAFA

surface

#EEF4F4

border

#C9CECE

text

#0A1010

muted

#7C7F7F

Preview Lab

Preview with #428A8A

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

Preview Lab → · Contrast checker → · Palette generator →