#337E40
Closest named color: Jungle Green (#048243). oklch(53% 0.12 147.1), rgb(51, 126, 64).
Aa
White text reads best on this color (5.00:1).
About this color
#337E40 is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.120 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.021 away. White text reads best on it, at 5.00:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.120) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.19:1 |
| White text | 5.00:1 |
Values
| HEX | #337E40 |
| RGB | rgb(51, 126, 64) |
| HSL | hsl(130, 42%, 35%) |
| OKLCH | oklch(53% 0.12 147.1) |
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 #337E40 | 5.00:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #337E40 | 4.19:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #337E40 text on white | 5.00:1 | AA | Lc 74.3 | Content text, not long reading |
| #337E40 text on black | 4.19:1 | AA large text | Lc -27.4 | 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 600.
-
Step 50
50
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E3EDE4
oklch(93.6% 0.016 148.4)
-
Step 200
200
#CDDFCE
oklch(88.5% 0.03 146.9)
-
Step 300
300
#AACBAD
oklch(81% 0.055 147.5)
-
Step 400
400
#7CB081
oklch(70.8% 0.087 147)
-
Step 500
500
#589C61
oklch(63.2% 0.112 147.1)
-
Step 600
600 (this color)
#337E40
oklch(53% 0.12 147.1)
-
Step 700
700
#2D7139
oklch(49% 0.111 147.2)
-
Step 800
800
#275C2F
oklch(42.6% 0.092 146.8)
-
Step 900
900
#254C2A
oklch(37.8% 0.072 146.8)
-
Step 950
950
#162C19
oklch(26.8% 0.045 147.4)
#337E40 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) | #80733B | 0.096 |
| Deuteranopia (no green cones) | #766D44 | 0.094 |
| Tritanopia (no blue cones) | #227B6F | 0.071 |
| Achromatopsia (no color) | #6F6F6F | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337E40
#337E40
oklch(53% 0.12 147.1)
- #905090
#905090
oklch(53% 0.121 327.1)
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 #337E40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.021
- Tree Green #2A7E19 ΔE 0.039
- Sea Green #2E8B57 ΔE 0.042
- Dark Grass Green #388004 ΔE 0.046
- Military Green #667C3E ΔE 0.055
- Dark Sage #598556 ΔE 0.055
- Muddy Green #657432 ΔE 0.056
- Forest Green #228B22 ΔE 0.057
Use #337E40 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.