#289D2B
Closest named color: Grass Green (#3F9B0B). oklch(61% 0.182 143.2), rgb(40, 157, 43).
Aa
Black text reads best on this color (5.94:1).
About this color
#289D2B is a medium-dark, vivid green. In OKLCH its lightness is 61%, its chroma 0.182 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass Green (#3F9B0B), ΔE 0.016 away. Black text reads best on it, at 5.94:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.182) |
| Temperature | in between |
| Nearest name | Grass Green (#3F9B0B) |
| Black text | 5.94:1 |
| White text | 3.53:1 |
Values
| HEX | #289D2B |
| RGB | rgb(40, 157, 43) |
| HSL | hsl(122, 59%, 39%) |
| OKLCH | oklch(61% 0.182 143.2) |
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 #289D2B | 3.53:1 | AA large text | Lc -67.8 | Content text, not long reading |
| Black text on #289D2B | 5.94:1 | AA | Lc 41.7 | Non-text elements, placeholder text |
| #289D2B text on white | 3.53:1 | AA large text | Lc 62.4 | Content text, not long reading |
| #289D2B text on black | 5.94:1 | AA | Lc -39.3 | 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
#C7E2C5
oklch(88.5% 0.049 143.3)
-
Step 300
300
#9FD09B
oklch(80.9% 0.089 142.8)
-
Step 400
400
#66B763
oklch(70.7% 0.143 143.2)
-
Step 500
500 (this color)
#289D2B
oklch(61% 0.182 143.2)
-
Step 600
600
#008C10
oklch(55.5% 0.184 143.2)
-
Step 700
700
#00760C
oklch(49.1% 0.163 143.2)
-
Step 800
800
#006108
oklch(42.7% 0.142 143.2)
-
Step 900
900
#08500C
oklch(37.6% 0.119 143.3)
-
Step 950
950
#0A2F0A
oklch(26.9% 0.075 143.1)
#289D2B 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) | #A08E18 | 0.130 |
| Deuteranopia (no green cones) | #938537 | 0.131 |
| Tritanopia (no blue cones) | #009887 | 0.117 |
| Achromatopsia (no color) | #888888 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #289D2B
#289D2B
oklch(61% 0.182 143.2)
- #B555C1
#B555C1
oklch(60.9% 0.183 323.1)
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 #289D2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass Green #3F9B0B ΔE 0.016
- Grassy Green #419C03 ΔE 0.019
- Irish Green #019529 ΔE 0.028
- True Green #089404 ΔE 0.034
- Kelley Green #009337 ΔE 0.037
- Kelly Green #02AB2E ΔE 0.040
- Emerald Green #028F1E ΔE 0.046
- Mid Green #50A747 ΔE 0.049
Use #289D2B 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.