#428B4E#428B4E

#428B4E is a mid, moderate green. Relative luminance 0.202; OKLCH L 57.4% C 0.118 H 147.4°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#428B4E
RGB	rgb(66, 139, 78)
HSL	hsl(130, 36%, 40%)
HSV	hsv(130, 53%, 55%)
CMYK	cmyk(52.5%, 0%, 43.9%, 45.5%)
CIE-LAB	lab(52.03, -36.59, 25.81)
CIE-LCH	lch(52.03, 44.78, 144.81°)
OKLab	oklab(57.39% -0.0993 0.0636)
OKLCH	oklch(57.39% 0.118 147.4)
XYZ	xyz(12.8537, 20.1725, 10.4226)
Luminance	0.2017 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428B4E #8B427F

analogous

#5A8B42 #428B4E #428B72

triadic

#428B4E #4E428B #8B4E42

tetradic

#428B4E #425A8B #8B427F #8B7242

square

#428B4E #425A8B #8B427F #8B7242

split-complementary

#428B4E #72428B #8B425A

monochromatic

#1B381F #2E6237 #428B4E #5AB168 #83C48E

Accessibility & contrast

On white

4.17

#428B4E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#428B4E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428B4E

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428B4E	#FFFFFF	#000000	##000000
##428B4E	1.00	4.17	5.03	5.03
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D8049

Deuteranopia (green-blind)

#827952

Tritanopia (blue-blind)

#34887C

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #428b4e;
/* rgb */ color: rgb(66, 139, 78);
/* oklch */ color: oklch(57.4% 0.118 147.4);

Tailwind

colors: {
  custom: {
    50: '#7cad80',
    500: '#428b4e',
    950: '#000000',
  },
}

SCSS

$custom: #428b4e;
$custom-light: #7cad80;
$custom-dark: #000000;

JSON

{
  "hex": "#428b4e",
  "rgb": {
    "r": 66,
    "g": 139,
    "b": 78
  },
  "hsl": {
    "h": 129.863,
    "s": 35.61,
    "l": 40.196
  },
  "oklch": {
    "l": 0.57394,
    "c": 0.11787,
    "h": 147.4
  },
  "luminance": 0.20174
}

Semantic roles & 50–950 ramp

primary

#428B4E

secondary

#AF7AA6

accent

#5CB9CC

background

#F7FAF7

surface

#EEF4EE

border

#C9CEC9

text

#0A100A

muted

#7C7F7C

Preview Lab

Preview with #428B4E

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

Preview Lab → · Contrast checker → · Palette generator →