#288309
Closest named color: Dark Grass Green (#388004). oklch(53.5% 0.169 140.1), rgb(40, 131, 9).
Aa
White text reads best on this color (4.83:1).
About this color
#288309 is a medium-dark, vivid green. In OKLCH its lightness is 54%, its chroma 0.169 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Grass Green (#388004), ΔE 0.013 away. White text reads best on it, at 4.83:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.169) |
| Temperature | in between |
| Nearest name | Dark Grass Green (#388004) |
| Black text | 4.34:1 |
| White text | 4.83:1 |
Values
| HEX | #288309 |
| RGB | rgb(40, 131, 9) |
| HSL | hsl(105, 87%, 27%) |
| OKLCH | oklch(53.5% 0.169 140.1) |
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 #288309 | 4.83:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #288309 | 4.34:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #288309 text on white | 4.83:1 | AA | Lc 73.1 | Content text, not long reading |
| #288309 text on black | 4.34:1 | AA large text | Lc -28.6 | Dividers and decoration only |
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
#E2EEE0
oklch(93.6% 0.023 141.2)
-
Step 200
200
#CBE0C6
oklch(88.4% 0.042 139.7)
-
Step 300
300
#A7CD9F
oklch(80.9% 0.075 140.2)
-
Step 400
400
#76B369
oklch(70.7% 0.122 140.1)
-
Step 500
500
#509F3E
oklch(63.1% 0.154 140.1)
-
Step 600
600 (this color)
#288309
oklch(53.5% 0.169 140.1)
-
Step 700
700
#217403
oklch(49% 0.156 140.1)
-
Step 800
800
#1E5F0B
oklch(42.7% 0.13 140.1)
-
Step 900
900
#1F4E14
oklch(37.7% 0.102 140.1)
-
Step 950
950
#132E0D
oklch(27.1% 0.065 140.1)
#288309 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) | #877600 | 0.115 |
| Deuteranopia (no green cones) | #7C6F1D | 0.113 |
| Tritanopia (no blue cones) | #177E6F | 0.115 |
| Achromatopsia (no color) | #727272 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #288309
#288309
oklch(53.5% 0.169 140.1)
- #9745A8
#9745A8
oklch(53.6% 0.168 320.5)
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 #288309, closest first.
No curated palette has a color within ΔE 0.04 of #288309.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grass Green #388004 ΔE 0.013
- Tree Green #2A7E19 ΔE 0.018
- Green #008000 ΔE 0.019
- Forest Green #228B22 ΔE 0.024
- Emerald Green #028F1E ΔE 0.034
- Jungle Green #048243 ΔE 0.046
- Kelley Green #009337 ΔE 0.048
- True Green #089404 ΔE 0.051
Use #288309 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.