#428C3F#428C3F

#428C3F is a mid, vivid green. Relative luminance 0.203; OKLCH L 57.4% C 0.134 H 142.9°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#428C3F
RGB	rgb(66, 140, 63)
HSL	hsl(118, 38%, 40%)
HSV	hsv(118, 55%, 55%)
CMYK	cmyk(52.9%, 0%, 55%, 45.1%)
CIE-LAB	lab(52.14, -39.31, 33.88)
CIE-LCH	lch(52.14, 51.89, 139.24°)
OKLab	oklab(57.42% -0.107 0.081)
OKLCH	oklch(57.42% 0.134 142.9)
XYZ	xyz(12.5214, 20.2723, 7.9548)
Luminance	0.2027 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428C3F #893F8C

analogous

#698C3F #428C3F #3F8C62

triadic

#428C3F #3F428C #8C3F42

tetradic

#428C3F #3F698C #893F8C #8C623F

square

#428C3F #3F698C #893F8C #8C623F

split-complementary

#428C3F #623F8C #8C3F69

monochromatic

#1A3819 #2E622C #428C3F #59B355 #82C680

Accessibility & contrast

On white

4.15

#428C3F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#428C3F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428C3F

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428C3F	#FFFFFF	#000000	##000000
##428C3F	1.00	4.15	5.05	5.05
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F8038

Deuteranopia (green-blind)

#857A45

Tritanopia (blue-blind)

#38887B

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #428c3f;
/* rgb */ color: rgb(66, 140, 63);
/* oklch */ color: oklch(57.4% 0.134 142.9);

Tailwind

colors: {
  custom: {
    50: '#7dae76',
    500: '#428c3f',
    950: '#000000',
  },
}

SCSS

$custom: #428c3f;
$custom-light: #7dae76;
$custom-dark: #000000;

JSON

{
  "hex": "#428c3f",
  "rgb": {
    "r": 66,
    "g": 140,
    "b": 63
  },
  "hsl": {
    "h": 117.662,
    "s": 37.931,
    "l": 39.804
  },
  "oklch": {
    "l": 0.57416,
    "c": 0.1342,
    "h": 142.9
  },
  "luminance": 0.20273
}

Semantic roles & 50–950 ramp

primary

#428C3F

secondary

#AE77B0

accent

#5ACEC9

background

#F7FAF7

surface

#EEF4ED

border

#C9CEC8

text

#0A1008

muted

#7C7F7B

Preview Lab

Preview with #428C3F

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

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