#289B22
Closest named color: Grass Green (#3F9B0B). oklch(60.4% 0.185 142.3), rgb(40, 155, 34).
Aa
Black text reads best on this color (5.80:1).
About this color
#289B22 is a medium-dark, vivid green. In OKLCH its lightness is 60%, its chroma 0.185 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass Green (#3F9B0B), ΔE 0.014 away. Black text reads best on it, at 5.80:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.185) |
| Temperature | in between |
| Nearest name | Grass Green (#3F9B0B) |
| Black text | 5.80:1 |
| White text | 3.61:1 |
Values
| HEX | #289B22 |
| RGB | rgb(40, 155, 34) |
| HSL | hsl(117, 64%, 37%) |
| OKLCH | oklch(60.4% 0.185 142.3) |
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 #289B22 | 3.61:1 | AA large text | Lc -68.7 | Content text, not long reading |
| Black text on #289B22 | 5.80:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #289B22 text on white | 3.61:1 | AA large text | Lc 63.3 | Content text, not long reading |
| #289B22 text on black | 5.80:1 | AA | Lc -38.4 | 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 500.
-
Step 50
50
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#E0EFDF
oklch(93.7% 0.027 143.6)
-
Step 200
200
#C7E2C4
oklch(88.5% 0.05 142.4)
-
Step 300
300
#9FD09A
oklch(80.9% 0.091 142.4)
-
Step 400
400
#67B760
oklch(70.7% 0.145 142.2)
-
Step 500
500 (this color)
#289B22
oklch(60.4% 0.185 142.3)
-
Step 600
600
#058C00
oklch(55.5% 0.188 142.3)
-
Step 700
700
#047600
oklch(49.1% 0.166 142.3)
-
Step 800
800
#026100
oklch(42.7% 0.145 142.3)
-
Step 900
900
#0A5007
oklch(37.6% 0.121 142.3)
-
Step 950
950
#0A2F08
oklch(26.9% 0.077 142.3)
#289B22 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) | #9F8C03 | 0.130 |
| Deuteranopia (no green cones) | #928330 | 0.131 |
| Tritanopia (no blue cones) | #009684 | 0.120 |
| Achromatopsia (no color) | #868686 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #289B22
#289B22
oklch(60.4% 0.185 142.3)
- #B353C1
#B353C1
oklch(60.4% 0.185 322.4)
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 #289B22, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass Green #3F9B0B ΔE 0.014
- Grassy Green #419C03 ΔE 0.017
- Irish Green #019529 ΔE 0.024
- True Green #089404 ΔE 0.027
- Kelley Green #009337 ΔE 0.034
- Emerald Green #028F1E ΔE 0.040
- Kelly Green #02AB2E ΔE 0.045
- Forest Green #228B22 ΔE 0.049
Use #289B22 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.