#428600
Closest named color: Dark Grass Green (#388004). oklch(55.3% 0.163 135.5), rgb(66, 134, 0).
Aa
Black text reads best on this color (4.64:1).
About this color
#428600 is a medium-dark, vivid green. In OKLCH its lightness is 55%, its chroma 0.163 and its hue 135°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Grass Green (#388004), ΔE 0.022 away. Black text reads best on it, at 4.64:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.163) |
| Temperature | in between |
| Nearest name | Dark Grass Green (#388004) |
| Black text | 4.64:1 |
| White text | 4.52:1 |
Values
| HEX | #428600 |
| RGB | rgb(66, 134, 0) |
| HSL | hsl(90, 100%, 26%) |
| OKLCH | oklch(55.3% 0.163 135.5) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #428600 | 4.52:1 | AA | Lc -76.5 | Fine for body text |
| Black text on #428600 | 4.64:1 | AA | Lc 33.0 | Non-text elements, placeholder text |
| #428600 text on white | 4.52:1 | AA | Lc 71.1 | Content text, not long reading |
| #428600 text on black | 4.64:1 | AA | Lc -30.6 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F3F7F1
oklch(97.1% 0.009 134.9)
-
Step 100
100
#E4EDDF
oklch(93.5% 0.021 134.1)
-
Step 200
200
#CEE0C5
oklch(88.6% 0.041 135.1)
-
Step 300
300
#ACCC9D
oklch(80.9% 0.073 135.8)
-
Step 400
400
#7FB165
oklch(70.7% 0.118 135.6)
-
Step 500
500
#5E9D37
oklch(63.1% 0.15 135.5)
-
Step 600
600 (this color)
#428600
oklch(55.3% 0.163 135.5)
-
Step 700
700
#377200
oklch(49.2% 0.145 135.5)
-
Step 800
800
#2C5D00
oklch(42.7% 0.126 135.4)
-
Step 900
900
#284C0F
oklch(37.6% 0.097 135.4)
-
Step 950
950
#182D0B
oklch(27% 0.062 135.4)
#428600 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #8B7A00 | 0.100 |
| Deuteranopia (no green cones) | #837419 | 0.099 |
| Tritanopia (no blue cones) | #3F8071 | 0.119 |
| Achromatopsia (no color) | #767676 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428600
#428600
oklch(55.3% 0.163 135.5)
- #964EB2
#964EB2
oklch(55.3% 0.164 315.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #428600, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grass Green #388004 ΔE 0.022
- Forest Green #228B22 ΔE 0.023
- Emerald Green #028F1E ΔE 0.034
- Sap Green #5C8B15 ΔE 0.035
- Tree Green #2A7E19 ΔE 0.035
- Green #008000 ΔE 0.042
- Kelley Green #009337 ΔE 0.043
- Irish Green #019529 ΔE 0.045
Use #428600 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.