#288A28
Closest named color: Forest Green (#228B22). oklch(55.7% 0.162 143), rgb(40, 138, 40).
Aa
Black text reads best on this color (4.75:1).
About this color
#288A28 is a medium-dark, vivid green. In OKLCH its lightness is 56%, its chroma 0.162 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest Green (#228B22), ΔE 0.007 away. Black text reads best on it, at 4.75:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.162) |
| Temperature | in between |
| Nearest name | Forest Green (#228B22) |
| Black text | 4.75:1 |
| White text | 4.41:1 |
Values
| HEX | #288A28 |
| RGB | rgb(40, 138, 40) |
| HSL | hsl(120, 55%, 35%) |
| OKLCH | oklch(55.7% 0.162 143) |
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 #288A28 | 4.41:1 | AA large text | Lc -75.7 | Fine for body text |
| Black text on #288A28 | 4.75:1 | AA | Lc 33.9 | Non-text elements, placeholder text |
| #288A28 text on white | 4.41:1 | AA large text | Lc 70.2 | Content text, not long reading |
| #288A28 text on black | 4.75:1 | AA | Lc -31.5 | 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E2EEE1
oklch(93.7% 0.021 143.2)
-
Step 200
200
#CAE0C8
oklch(88.4% 0.04 142.9)
-
Step 300
300
#A6CDA2
oklch(80.9% 0.073 142.4)
-
Step 400
400
#73B370
oklch(70.6% 0.116 143.2)
-
Step 500
500
#4BA048
oklch(63.2% 0.15 143)
-
Step 600
600 (this color)
#288A28
oklch(55.7% 0.162 143)
-
Step 700
700
#18751A
oklch(49.2% 0.151 143.1)
-
Step 800
800
#185F18
oklch(42.7% 0.125 143)
-
Step 900
900
#1C4E1B
oklch(37.7% 0.097 143)
-
Step 950
950
#122E11
oklch(27.1% 0.061 143)
#288A28 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) | #8D7D19 | 0.116 |
| Deuteranopia (no green cones) | #827531 | 0.116 |
| Tritanopia (no blue cones) | #0B8676 | 0.103 |
| Achromatopsia (no color) | #787878 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #288A28
#288A28
oklch(55.7% 0.162 143)
- #9F4CA9
#9F4CA9
oklch(55.6% 0.162 323.2)
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 #288A28, closest first.
No curated palette has a color within ΔE 0.04 of #288A28.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest Green #228B22 ΔE 0.007
- Emerald Green #028F1E ΔE 0.021
- Kelley Green #009337 ΔE 0.026
- Dark Grass Green #388004 ΔE 0.030
- Irish Green #019529 ΔE 0.033
- Tree Green #2A7E19 ΔE 0.036
- True Green #089404 ΔE 0.039
- Green #008000 ΔE 0.040
Use #288A28 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.