#337E4A
Closest named color: Jungle Green (#048243). oklch(53.2% 0.11 151), rgb(51, 126, 74).
Aa
White text reads best on this color (4.97:1).
About this color
#337E4A is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.110 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 0.027 away. White text reads best on it, at 4.97:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.110) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.22:1 |
| White text | 4.97:1 |
Values
| HEX | #337E4A |
| RGB | rgb(51, 126, 74) |
| HSL | hsl(138, 42%, 35%) |
| OKLCH | oklch(53.2% 0.11 151) |
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 #337E4A | 4.97:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #337E4A | 4.22:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #337E4A text on white | 4.97:1 | AA | Lc 74.1 | Content text, not long reading |
| #337E4A text on black | 4.22:1 | AA large text | Lc -27.6 | 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
#7CAF87
oklch(70.7% 0.079 150.7)
-
Step 500
500
#589B69
oklch(63.1% 0.102 150.8)
-
Step 600
600 (this color)
#337E4A
oklch(53.2% 0.11 151)
-
Step 700
700
#2C7141
oklch(49.2% 0.103 150.8)
-
Step 800
800
#265C36
oklch(42.7% 0.085 150.9)
-
Step 900
900
#244B2F
oklch(37.6% 0.066 151.3)
-
Step 950
950
#162C1C
oklch(26.9% 0.041 151.6)
#337E4A 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) | #7F7446 | 0.094 |
| Deuteranopia (no green cones) | #746D4D | 0.091 |
| Tritanopia (no blue cones) | #1E7C71 | 0.060 |
| Achromatopsia (no color) | #707070 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337E4A
#337E4A
oklch(53.2% 0.11 151)
- #90538A
#90538A
oklch(53.2% 0.11 330.6)
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 #337E4A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.027
- Sea Green #2E8B57 ΔE 0.038
- Dark Sage #598556 ΔE 0.049
- Tree Green #2A7E19 ΔE 0.052
- Military Green #667C3E ΔE 0.053
- Muddy Green #657432 ΔE 0.056
- Viridian #1E9167 ΔE 0.058
- Dark Grass Green #388004 ΔE 0.059
Use #337E4A 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.