#428A1A#428A1A

#428A1A is a mid, vivid yellow-green. Relative luminance 0.194; OKLCH L 56.5% C 0.159 H 137.2°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX#428A1A
RGBrgb(66, 138, 26)
HSLhsl(99, 68%, 32%)
HSVhsv(99, 81%, 54%)
CMYKcmyk(52.2%, 0%, 81.2%, 45.9%)
CIE-LABlab(51.16, -42.04, 48.67)
CIE-LCHlch(51.16, 64.31, 130.82°)
OKLaboklab(56.51% -0.1167 0.108)
OKLCHoklch(56.51% 0.159 137.2)
XYZxyz(11.5213, 19.4089, 4.1163)
Luminance0.1941 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#428A1A #621A8A
analogous
#7A8A1A #428A1A #1A8A2A
triadic
#428A1A #1A428A #8A1A42
tetradic
#428A1A #1A7A8A #621A8A #8A2A1A
square
#428A1A #1A7A8A #621A8A #8A2A1A
split-complementary
#428A1A #2A1A8A #8A1A7A
monochromatic
#112307 #295710 #428A1A #5BBD24 #79DC43

Accessibility & contrast

On white

4.30
#428A1A on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.88
#428A1A on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428A1A
4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##428A1A#FFFFFF#000000##000000
##428A1A1.004.304.884.88
#FFFFFF4.301.0021.0021.00
#0000004.8821.001.001.00
##0000004.8821.001.001.00

Color blindness preview

Protanopia (red-blind)
#8F7E00
Deuteranopia (green-blind)
#857827
Tritanopia (blue-blind)
#3D8575
Achromatopsia (no color)
#7A7A7A

Design tokens & code

CSS
--color: #428a1a;
/* rgb */ color: rgb(66, 138, 26);
/* oklch */ color: oklch(56.5% 0.159 137.2);
Tailwind
colors: {
  custom: {
    50: '#7ead61',
    500: '#428a1a',
    950: '#000000',
  },
}
SCSS
$custom: #428a1a;
$custom-light: #7ead61;
$custom-dark: #000000;
JSON
{
  "hex": "#428a1a",
  "rgb": {
    "r": 66,
    "g": 138,
    "b": 26
  },
  "hsl": {
    "h": 98.571,
    "s": 68.293,
    "l": 32.157
  },
  "oklch": {
    "l": 0.56505,
    "c": 0.15899,
    "h": 137.2
  },
  "luminance": 0.1941
}

Semantic roles & 50–950 ramp

primary
#428A1A
secondary
#9143BD
accent
#3DEBAD
background
#F8FAF6
surface
#EFF4EB
border
#CACEC6
text
#0B1005
muted
#7C7F7A

Preview Lab

Preview with #428A1A

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

Preview Lab → · Contrast checker → · Palette generator →

#428A1A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva