#3B900D
Closest named color: Irish Green (#019529). oklch(57.8% 0.174 138.2), rgb(59, 144, 13).
Aa
Black text reads best on this color (5.18:1).
About this color
#3B900D is a medium-dark, vivid green. In OKLCH its lightness is 58%, its chroma 0.174 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Irish Green (#019529), ΔE 0.023 away. Black text reads best on it, at 5.18:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.174) |
| Temperature | in between |
| Nearest name | Irish Green (#019529) |
| Black text | 5.18:1 |
| White text | 4.05:1 |
Values
| HEX | #3B900D |
| RGB | rgb(59, 144, 13) |
| HSL | hsl(99, 83%, 31%) |
| OKLCH | oklch(57.8% 0.174 138.2) |
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 #3B900D | 4.05:1 | AA large text | Lc -72.9 | Content text, not long reading |
| Black text on #3B900D | 5.18:1 | AA | Lc 36.7 | Non-text elements, placeholder text |
| #3B900D text on white | 4.05:1 | AA large text | Lc 67.3 | Content text, not long reading |
| #3B900D text on black | 5.18:1 | AA | Lc -34.3 | 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 600.
-
Step 50
50
#F2F7F0
oklch(97% 0.011 136.6)
-
Step 100
100
#E3EEDF
oklch(93.7% 0.023 137.2)
-
Step 200
200
#CBE0C5
oklch(88.4% 0.043 138.7)
-
Step 300
300
#A8CD9C
oklch(80.9% 0.078 138.1)
-
Step 400
400
#78B364
oklch(70.7% 0.126 138.2)
-
Step 500
500
#539F35
oklch(63.1% 0.16 138.1)
-
Step 600
600 (this color)
#3B900D
oklch(57.8% 0.174 138.2)
-
Step 700
700
#2B7300
oklch(49% 0.152 138.2)
-
Step 800
800
#225F00
oklch(42.8% 0.133 138.3)
-
Step 900
900
#214E0E
oklch(37.8% 0.105 138.3)
-
Step 950
950
#142E0B
oklch(27.1% 0.067 138.6)
#3B900D 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) | #958200 | 0.114 |
| Deuteranopia (no green cones) | #8A7C21 | 0.111 |
| Tritanopia (no blue cones) | #338B7A | 0.121 |
| Achromatopsia (no color) | #7E7E7E | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B900D
#3B900D
oklch(57.8% 0.174 138.2)
- #A351BB
#A351BB
oklch(57.8% 0.174 318)
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 #3B900D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Irish Green #019529 ΔE 0.023
- Emerald Green #028F1E ΔE 0.024
- True Green #089404 ΔE 0.024
- Forest Green #228B22 ΔE 0.025
- Kelley Green #009337 ΔE 0.028
- Grass Green #3F9B0B ΔE 0.033
- Sap Green #5C8B15 ΔE 0.034
- Grassy Green #419C03 ΔE 0.037
Use #3B900D 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.