#428E1F#428E1F

#428E1F is a mid, vivid green. Relative luminance 0.206; OKLCH L 57.6% C 0.161 H 138.0°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#428E1F
RGB	rgb(66, 142, 31)
HSL	hsl(101, 64%, 34%)
HSV	hsv(101, 78%, 56%)
CMYK	cmyk(53.5%, 0%, 78.2%, 44.3%)
CIE-LAB	lab(52.51, -43.32, 48.31)
CIE-LCH	lch(52.51, 64.89, 131.88°)
OKLab	oklab(57.63% -0.1198 0.108)
OKLCH	oklch(57.63% 0.161 138)
XYZ	xyz(12.1667, 20.6023, 4.6316)
Luminance	0.2060 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428E1F #6B1F8E

analogous

#7A8E1F #428E1F #1F8E34

triadic

#428E1F #1F428E #8E1F42

tetradic

#428E1F #1F7A8E #6B1F8E #8E341F

square

#428E1F #1F7A8E #6B1F8E #8E341F

split-complementary

#428E1F #341F8E #8E1F7A

monochromatic

#132A09 #2B5C14 #428E1F #59C02A #7AD94F

Accessibility & contrast

On white

4.10

#428E1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#428E1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428E1F

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428E1F	#FFFFFF	#000000	##000000
##428E1F	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#938104

Deuteranopia (green-blind)

#897B2B

Tritanopia (blue-blind)

#3C8979

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #428e1f;
/* rgb */ color: rgb(66, 142, 31);
/* oklch */ color: oklch(57.6% 0.161 138.0);

Tailwind

colors: {
  custom: {
    50: '#7fb064',
    500: '#428e1f',
    950: '#000000',
  },
}

SCSS

$custom: #428e1f;
$custom-light: #7fb064;
$custom-dark: #000000;

JSON

{
  "hex": "#428e1f",
  "rgb": {
    "r": 66,
    "g": 142,
    "b": 31
  },
  "hsl": {
    "h": 101.081,
    "s": 64.162,
    "l": 33.922
  },
  "oklch": {
    "l": 0.57625,
    "c": 0.16129,
    "h": 138
  },
  "luminance": 0.20603
}

Semantic roles & 50–950 ramp

primary

#428E1F

secondary

#994DBB

accent

#41E7B3

background

#F8FAF6

surface

#EFF5EB

border

#CACFC6

text

#0B1006

muted

#7C7F7A

Preview Lab

Preview with #428E1F

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

Preview Lab → · Contrast checker → · Palette generator →