#397540
Closest named color: Dark Olive Green (#556B2F). oklch(50.8% 0.104 146.3), rgb(57, 117, 64).
Aa
White text reads best on this color (5.53:1).
About this color
#397540 is a medium-dark, moderately saturated green. In OKLCH its lightness is 51%, its chroma 0.104 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 5.53:1.
| Hue family | Greens |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Dark Olive Green (#556B2F) |
| Black text | 3.79:1 |
| White text | 5.53:1 |
Values
| HEX | #397540 |
| RGB | rgb(57, 117, 64) |
| HSL | hsl(127, 34%, 34%) |
| OKLCH | oklch(50.8% 0.104 146.3) |
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 #397540 | 5.53:1 | AA | Lc -82.8 | Fine for body text |
| Black text on #397540 | 3.79:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #397540 text on white | 5.53:1 | AA | Lc 77.5 | Fine for body text |
| #397540 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
#5E9A64
oklch(63.1% 0.102 146.6)
-
Step 600
600
#43844A
oklch(55.5% 0.111 146.2)
-
Step 700
700 (this color)
#397540
oklch(50.8% 0.104 146.3)
-
Step 800
800
#2C5B31
oklch(42.6% 0.086 146.1)
-
Step 900
900
#284B2C
oklch(37.7% 0.066 146.7)
-
Step 950
950
#182C1A
oklch(27% 0.042 146.7)
#397540 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 | 0.082 |
| Deuteranopia (no green cones) | #6E6643 | 0.080 |
| Tritanopia (no blue cones) | #2F7368 | 0.061 |
| Achromatopsia (no color) | #686868 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397540
#397540
oklch(50.8% 0.104 146.3)
- #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 #397540, 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 0.043
- Dark Moss Green #606C38 ΔE 0.049
- Camo Green #526525 ΔE 0.051
- Muddy Green #657432 ΔE 0.051
- Tree Green #2A7E19 ΔE 0.056
- Military Green #667C3E ΔE 0.059
- Mud Green #606602 ΔE 0.063
Use #397540 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.