#428720
Closest named color: Forest Green (#228B22). oklch(55.7% 0.152 137.5), rgb(66, 135, 32).
Aa
Black text reads best on this color (4.71:1).
About this color
#428720 is a medium-dark, vivid green. In OKLCH its lightness is 56%, its chroma 0.152 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest Green (#228B22), ΔE 0.023 away. Black text reads best on it, at 4.71:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Forest Green (#228B22) |
| Black text | 4.71:1 |
| White text | 4.45:1 |
Values
| HEX | #428720 |
| RGB | rgb(66, 135, 32) |
| HSL | hsl(100, 62%, 33%) |
| OKLCH | oklch(55.7% 0.152 137.5) |
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 #428720 | 4.45:1 | AA large text | Lc -76.1 | Fine for body text |
| Black text on #428720 | 4.71:1 | AA | Lc 33.5 | Non-text elements, placeholder text |
| #428720 text on white | 4.45:1 | AA large text | Lc 70.6 | Content text, not long reading |
| #428720 text on black | 4.71:1 | AA | Lc -31.1 | 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
#E4EDE0
oklch(93.6% 0.02 135.8)
-
Step 200
200
#CEDFC7
oklch(88.4% 0.037 136.5)
-
Step 300
300
#ACCCA0
oklch(81% 0.07 137.2)
-
Step 400
400
#7FB16C
oklch(70.8% 0.11 137.4)
-
Step 500
500
#5D9C43
oklch(63% 0.139 137.5)
-
Step 600
600 (this color)
#428720
oklch(55.7% 0.152 137.5)
-
Step 700
700
#337210
oklch(49.1% 0.142 137.5)
-
Step 800
800
#2B5D12
oklch(42.7% 0.117 137.5)
-
Step 900
900
#284C18
oklch(37.6% 0.09 137.3)
-
Step 950
950
#182D0F
oklch(27.1% 0.058 137.2)
#428720 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) | #8C7B0B | 0.097 |
| Deuteranopia (no green cones) | #83752B | 0.098 |
| Tritanopia (no blue cones) | #3D8273 | 0.106 |
| Achromatopsia (no color) | #777777 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #428720
#428720
oklch(55.7% 0.152 137.5)
- #9752AD
#9752AD
oklch(55.7% 0.152 317.5)
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 #428720, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest Green #228B22 ΔE 0.023
- Dark Grass Green #388004 ΔE 0.026
- Sap Green #5C8B15 ΔE 0.031
- Emerald Green #028F1E ΔE 0.036
- Tree Green #2A7E19 ΔE 0.036
- Kelley Green #009337 ΔE 0.039
- Mossy Green #638B27 ΔE 0.040
- Fern Green #548D44 ΔE 0.043
Use #428720 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.