#288D2A
Closest named color: Forest Green (#228B22). oklch(56.6% 0.164 143.3), rgb(40, 141, 42).
Aa
Black text reads best on this color (4.93:1).
About this color
#288D2A is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.164 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 0.009 away. Black text reads best on it, at 4.93:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.164) |
| Temperature | in between |
| Nearest name | Forest Green (#228B22) |
| Black text | 4.93:1 |
| White text | 4.25:1 |
Values
| HEX | #288D2A |
| RGB | rgb(40, 141, 42) |
| HSL | hsl(121, 56%, 35%) |
| OKLCH | oklch(56.6% 0.164 143.3) |
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 #288D2A | 4.25:1 | AA large text | Lc -74.5 | Content text, not long reading |
| Black text on #288D2A | 4.93:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #288D2A text on white | 4.25:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #288D2A text on black | 4.93:1 | AA | Lc -32.7 | 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
#CAE1C8
oklch(88.6% 0.042 143)
-
Step 300
300
#A5CDA2
oklch(80.8% 0.073 143.1)
-
Step 400
400
#72B46F
oklch(70.8% 0.119 143.2)
-
Step 500
500
#49A047
oklch(63.1% 0.151 143.1)
-
Step 600
600 (this color)
#288D2A
oklch(56.6% 0.164 143.3)
-
Step 700
700
#147519
oklch(49.1% 0.152 143.3)
-
Step 800
800
#165F18
oklch(42.6% 0.125 143.3)
-
Step 900
900
#1B4E1A
oklch(37.6% 0.098 143)
-
Step 950
950
#112E11
oklch(27% 0.062 143.6)
#288D2A 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) | #90801C | 0.118 |
| Deuteranopia (no green cones) | #847833 | 0.117 |
| Tritanopia (no blue cones) | #078979 | 0.104 |
| Achromatopsia (no color) | #7B7B7B | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #288D2A
#288D2A
oklch(56.6% 0.164 143.3)
- #A24EAC
#A24EAC
oklch(56.5% 0.164 323.3)
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 #288D2A, closest first.
No curated palette has a color within ΔE 0.04 of #288D2A.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest Green #228B22 ΔE 0.009
- Emerald Green #028F1E ΔE 0.018
- Kelley Green #009337 ΔE 0.018
- Irish Green #019529 ΔE 0.025
- True Green #089404 ΔE 0.033
- Dark Grass Green #388004 ΔE 0.038
- Sap Green #5C8B15 ΔE 0.042
- Tree Green #2A7E19 ΔE 0.044
Use #288D2A 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.