#428D4B#428D4B

#428D4B is a mid, vivid green. Relative luminance 0.207; OKLCH L 57.9% C 0.124 H 146.2°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#428D4B
RGB	rgb(66, 141, 75)
HSL	hsl(127, 36%, 41%)
HSV	hsv(127, 53%, 55%)
CMYK	cmyk(53.2%, 0%, 46.8%, 44.7%)
CIE-LAB	lab(52.64, -37.96, 28.20)
CIE-LCH	lch(52.64, 47.29, 143.39°)
OKLab	oklab(57.87% -0.103 0.069)
OKLCH	oklch(57.87% 0.124 146.2)
XYZ	xyz(13.0409, 20.7150, 9.9664)
Luminance	0.2072 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428D4B #8D4284

analogous

#5E8D42 #428D4B #428D70

triadic

#428D4B #4B428D #8D4B42

tetradic

#428D4B #425E8D #8D4284 #8D7042

square

#428D4B #425E8D #8D4284 #8D7042

split-complementary

#428D4B #70428D #8D425E

monochromatic

#1B3A1F #2E6335 #428D4B #5AB265 #84C58C

Accessibility & contrast

On white

4.08

#428D4B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#428D4B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428D4B

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428D4B	#FFFFFF	#000000	##000000
##428D4B	1.00	4.08	5.14	5.14
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F8246

Deuteranopia (green-blind)

#857B4F

Tritanopia (blue-blind)

#358A7D

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #428d4b;
/* rgb */ color: rgb(66, 141, 75);
/* oklch */ color: oklch(57.9% 0.124 146.2);

Tailwind

colors: {
  custom: {
    50: '#7caf7e',
    500: '#428d4b',
    950: '#000000',
  },
}

SCSS

$custom: #428d4b;
$custom-light: #7caf7e;
$custom-dark: #000000;

JSON

{
  "hex": "#428d4b",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 75
  },
  "hsl": {
    "h": 127.2,
    "s": 36.232,
    "l": 40.588
  },
  "oklch": {
    "l": 0.57874,
    "c": 0.12392,
    "h": 146.2
  },
  "luminance": 0.20716
}

Semantic roles & 50–950 ramp

primary

#428D4B

secondary

#B07BAA

accent

#5CBFCC

background

#F7FAF7

surface

#EEF4EE

border

#C9CEC9

text

#0A100A

muted

#7C7F7C

Preview Lab

Preview with #428D4B

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

Preview Lab → · Contrast checker → · Palette generator →