#428D1A#428D1A

#428D1A is a mid, vivid yellow-green. Relative luminance 0.203; OKLCH L 57.3% C 0.163 H 137.5°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#428D1A
RGB	rgb(66, 141, 26)
HSL	hsl(99, 69%, 33%)
HSV	hsv(99, 82%, 55%)
CMYK	cmyk(53.2%, 0%, 81.6%, 44.7%)
CIE-LAB	lab(52.15, -43.23, 49.60)
CIE-LCH	lch(52.15, 65.80, 131.07°)
OKLab	oklab(57.32% -0.1199 0.1099)
OKLCH	oklch(57.32% 0.163 137.5)
XYZ	xyz(11.9577, 20.2817, 4.2617)
Luminance	0.2028 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428D1A #651A8D

analogous

#7C8D1A #428D1A #1A8D2B

triadic

#428D1A #1A428D #8D1A42

tetradic

#428D1A #1A7C8D #651A8D #8D2B1A

square

#428D1A #1A7C8D #651A8D #8D2B1A

split-complementary

#428D1A #2B1A8D #8D1A7C

monochromatic

#122607 #2A5910 #428D1A #5AC124 #7ADD45

Accessibility & contrast

On white

4.15

#428D1A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#428D1A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428D1A

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428D1A	#FFFFFF	#000000	##000000
##428D1A	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#928000

Deuteranopia (green-blind)

#887A28

Tritanopia (blue-blind)

#3D8878

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #428d1a;
/* rgb */ color: rgb(66, 141, 26);
/* oklch */ color: oklch(57.3% 0.163 137.5);

Tailwind

colors: {
  custom: {
    50: '#7faf61',
    500: '#428d1a',
    950: '#000000',
  },
}

SCSS

$custom: #428d1a;
$custom-light: #7faf61;
$custom-dark: #000000;

JSON

{
  "hex": "#428d1a",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 26
  },
  "hsl": {
    "h": 99.13,
    "s": 68.862,
    "l": 32.745
  },
  "oklch": {
    "l": 0.57322,
    "c": 0.16265,
    "h": 137.5
  },
  "luminance": 0.20283
}

Semantic roles & 50–950 ramp

primary

#428D1A

secondary

#9445BE

accent

#3CECAF

background

#F8FAF6

surface

#EFF4EB

border

#CACEC6

text

#0B1005

muted

#7C7F7A

Preview Lab

Preview with #428D1A

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

Preview Lab → · Contrast checker → · Palette generator →