#337D4A
Closest named color: Jungle Green (#048243). oklch(52.9% 0.109 151.1), rgb(51, 125, 74).
Aa
White text reads best on this color (5.03:1).
About this color
#337D4A is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.109 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.029 away. White text reads best on it, at 5.03:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.109) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.17:1 |
| White text | 5.03:1 |
Values
| HEX | #337D4A |
| RGB | rgb(51, 125, 74) |
| HSL | hsl(139, 42%, 35%) |
| OKLCH | oklch(52.9% 0.109 151.1) |
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 #337D4A | 5.03:1 | AA | Lc -79.9 | Fine for body text |
| Black text on #337D4A | 4.17:1 | AA large text | Lc 29.6 | Dividers and decoration only |
| #337D4A text on white | 5.03:1 | AA | Lc 74.5 | Content text, not long reading |
| #337D4A text on black | 4.17:1 | AA large text | Lc -27.2 | 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
#E3EDE5
oklch(93.6% 0.015 151.8)
-
Step 200
200
#CDDFD0
oklch(88.6% 0.028 150.4)
-
Step 300
300
#AACAB1
oklch(80.8% 0.049 151.7)
-
Step 400
400
#7CAF88
oklch(70.7% 0.078 151.3)
-
Step 500
500
#599B6A
oklch(63.2% 0.1 150.9)
-
Step 600
600 (this color)
#337D4A
oklch(52.9% 0.109 151.1)
-
Step 700
700
#2D7142
oklch(49.2% 0.102 151)
-
Step 800
800
#275C37
oklch(42.8% 0.084 151.2)
-
Step 900
900
#254B2F
oklch(37.6% 0.065 150.8)
-
Step 950
950
#162C1C
oklch(26.9% 0.041 151.6)
#337D4A 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) | #7E7346 | 0.093 |
| Deuteranopia (no green cones) | #746C4D | 0.091 |
| Tritanopia (no blue cones) | #1F7B70 | 0.058 |
| Achromatopsia (no color) | #6F6F6F | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337D4A
#337D4A
oklch(52.9% 0.109 151.1)
- #8F5288
#8F5288
oklch(52.9% 0.109 331.3)
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 #337D4A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.029
- Sea Green #2E8B57 ΔE 0.041
- Dark Sage #598556 ΔE 0.050
- Tree Green #2A7E19 ΔE 0.053
- Military Green #667C3E ΔE 0.054
- Muddy Green #657432 ΔE 0.056
- Dark Olive Green #556B2F ΔE 0.058
- Dark Grass Green #388004 ΔE 0.061
Use #337D4A 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.