#3A7540
Closest named color: Dark Olive Green (#556B2F). oklch(50.8% 0.103 146), rgb(58, 117, 64).
Aa
White text reads best on this color (5.52:1).
About this color
#3A7540 is a medium-dark, moderately saturated green. In OKLCH its lightness is 51%, its chroma 0.103 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive Green (#556B2F), ΔE 0.038 away. White text reads best on it, at 5.52:1.
| Hue family | Greens |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Dark Olive Green (#556B2F) |
| Black text | 3.79:1 |
| White text | 5.52:1 |
Values
| HEX | #3A7540 |
| RGB | rgb(58, 117, 64) |
| HSL | hsl(126, 34%, 34%) |
| OKLCH | oklch(50.8% 0.103 146) |
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 #3A7540 | 5.52:1 | AA | Lc -82.7 | Fine for body text |
| Black text on #3A7540 | 3.79:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #3A7540 text on white | 5.52:1 | AA | Lc 77.4 | Fine for body text |
| #3A7540 text on black | 3.79:1 | AA large text | Lc -24.3 | 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 700.
-
Step 50
50
#F3F7F3
oklch(97.2% 0.007 145.5)
-
Step 100
100
#E4EDE4
oklch(93.7% 0.015 145.5)
-
Step 200
200
#CEDECE
oklch(88.4% 0.028 145.3)
-
Step 300
300
#ADCAAE
oklch(81% 0.05 146)
-
Step 400
400
#80AE83
oklch(70.6% 0.079 146.3)
-
Step 500
500
#5F9A63
oklch(63.1% 0.102 145.8)
-
Step 600
600
#44844A
oklch(55.5% 0.11 145.9)
-
Step 700
700 (this color)
#3A7540
oklch(50.8% 0.103 146)
-
Step 800
800
#2D5B31
oklch(42.7% 0.085 145.7)
-
Step 900
900
#294B2B
oklch(37.7% 0.067 145.4)
-
Step 950
950
#182C1A
oklch(27% 0.042 146.7)
#3A7540 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) | #776C3C | 0.081 |
| Deuteranopia (no green cones) | #6E6643 | 0.079 |
| Tritanopia (no blue cones) | #317268 | 0.062 |
| Achromatopsia (no color) | #696969 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A7540
#3A7540
oklch(50.8% 0.103 146)
- #844F85
#844F85
oklch(50.8% 0.104 326.3)
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 #3A7540, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive Green #556B2F ΔE 0.038
- Jungle Green #048243 ΔE 0.044
- Dark Moss Green #606C38 ΔE 0.048
- Muddy Green #657432 ΔE 0.050
- Camo Green #526525 ΔE 0.050
- Tree Green #2A7E19 ΔE 0.056
- Military Green #667C3E ΔE 0.058
- Mud Green #606602 ΔE 0.062
Use #3A7540 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.