#3D9903
Closest named color: Grass Green (#3F9B0B). oklch(60.3% 0.186 138.2), rgb(61, 153, 3).
Aa
Black text reads best on this color (5.75:1).
About this color
#3D9903 is a medium-dark, vivid green. In OKLCH its lightness is 60%, its chroma 0.186 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass Green (#3F9B0B), ΔE 0.006 away. Black text reads best on it, at 5.75:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.186) |
| Temperature | in between |
| Nearest name | Grass Green (#3F9B0B) |
| Black text | 5.75:1 |
| White text | 3.64:1 |
Values
| HEX | #3D9903 |
| RGB | rgb(61, 153, 3) |
| HSL | hsl(97, 96%, 31%) |
| OKLCH | oklch(60.3% 0.186 138.2) |
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 #3D9903 | 3.64:1 | AA large text | Lc -69.1 | Content text, not long reading |
| Black text on #3D9903 | 5.75:1 | AA | Lc 40.5 | Non-text elements, placeholder text |
| #3D9903 text on white | 3.64:1 | AA large text | Lc 63.6 | Content text, not long reading |
| #3D9903 text on black | 5.75:1 | AA | Lc -38.1 | 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
#F2F8F0
oklch(97.2% 0.012 137.8)
-
Step 100
100
#E2EEDD
oklch(93.5% 0.026 136.3)
-
Step 200
200
#C9E2C1
oklch(88.6% 0.052 138.1)
-
Step 300
300
#A4CF96
oklch(80.9% 0.09 138.1)
-
Step 400
400
#70B558
oklch(70.6% 0.145 138.2)
-
Step 500
500 (this color)
#3D9903
oklch(60.3% 0.186 138.2)
-
Step 600
600
#358900
oklch(55.6% 0.173 138.2)
-
Step 700
700
#2C7300
oklch(49.1% 0.152 138.1)
-
Step 800
800
#225F00
oklch(42.8% 0.133 138.3)
-
Step 900
900
#1B4F00
oklch(37.7% 0.117 138.3)
-
Step 950
950
#102F04
oklch(27.1% 0.078 138.3)
#3D9903 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) | #9E8A00 | 0.122 |
| Deuteranopia (no green cones) | #93831F | 0.120 |
| Tritanopia (no blue cones) | #349381 | 0.129 |
| Achromatopsia (no color) | #868686 | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D9903
#3D9903
oklch(60.3% 0.186 138.2)
- #AE55C7
#AE55C7
oklch(60.4% 0.185 318.3)
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 #3D9903, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass Green #3F9B0B ΔE 0.006
- Grassy Green #419C03 ΔE 0.010
- True Green #089404 ΔE 0.030
- Irish Green #019529 ΔE 0.031
- Kelley Green #009337 ΔE 0.042
- Emerald Green #028F1E ΔE 0.043
- Sap Green #5C8B15 ΔE 0.049
- Kelly Green #02AB2E ΔE 0.050
Use #3D9903 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.