#288F2A
Closest named color: Forest Green (#228B22). oklch(57.1% 0.166 143.2), rgb(40, 143, 42).
Aa
Black text reads best on this color (5.05:1).
About this color
#288F2A is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.166 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 0.014 away. Black text reads best on it, at 5.05:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.166) |
| Temperature | in between |
| Nearest name | Forest Green (#228B22) |
| Black text | 5.05:1 |
| White text | 4.15:1 |
Values
| HEX | #288F2A |
| RGB | rgb(40, 143, 42) |
| HSL | hsl(121, 56%, 36%) |
| OKLCH | oklch(57.1% 0.166 143.2) |
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 #288F2A | 4.15:1 | AA large text | Lc -73.6 | Content text, not long reading |
| Black text on #288F2A | 5.05:1 | AA | Lc 35.9 | Non-text elements, placeholder text |
| #288F2A text on white | 4.15:1 | AA large text | Lc 68.1 | Content text, not long reading |
| #288F2A text on black | 5.05:1 | AA | Lc -33.5 | 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
#CAE1C8
oklch(88.6% 0.042 143)
-
Step 300
300
#A4CEA2
oklch(81% 0.075 143.7)
-
Step 400
400
#71B46E
oklch(70.7% 0.121 143.2)
-
Step 500
500
#47A046
oklch(63% 0.153 143.3)
-
Step 600
600 (this color)
#288F2A
oklch(57.1% 0.166 143.2)
-
Step 700
700
#117516
oklch(49% 0.155 143.2)
-
Step 800
800
#146016
oklch(42.8% 0.129 143.2)
-
Step 900
900
#1A4E1A
oklch(37.6% 0.099 143.3)
-
Step 950
950
#112E10
oklch(27% 0.063 143)
#288F2A 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) | #92811B | 0.120 |
| Deuteranopia (no green cones) | #867934 | 0.120 |
| Tritanopia (no blue cones) | #058B7B | 0.106 |
| Achromatopsia (no color) | #7C7C7C | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #288F2A
#288F2A
oklch(57.1% 0.166 143.2)
- #A54FAF
#A54FAF
oklch(57.1% 0.167 323.4)
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 #288F2A, closest first.
No curated palette has a color within ΔE 0.04 of #288F2A.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest Green #228B22 ΔE 0.014
- Kelley Green #009337 ΔE 0.015
- Emerald Green #028F1E ΔE 0.016
- Irish Green #019529 ΔE 0.020
- True Green #089404 ΔE 0.029
- Sap Green #5C8B15 ΔE 0.041
- Dark Grass Green #388004 ΔE 0.043
- Grass Green #3F9B0B ΔE 0.046
Use #288F2A 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.