#337F50
Closest named color: Jungle Green (#048243). oklch(53.6% 0.106 153.6), rgb(51, 127, 80).
Aa
White text reads best on this color (4.89:1).
About this color
#337F50 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.106 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.032 away. White text reads best on it, at 4.89:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.29:1 |
| White text | 4.89:1 |
Values
| HEX | #337F50 |
| RGB | rgb(51, 127, 80) |
| HSL | hsl(143, 43%, 35%) |
| OKLCH | oklch(53.6% 0.106 153.6) |
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 #337F50 | 4.89:1 | AA | Lc -79.1 | Fine for body text |
| Black text on #337F50 | 4.29:1 | AA large text | Lc 30.4 | Non-text elements, placeholder text |
| #337F50 text on white | 4.89:1 | AA | Lc 73.7 | Content text, not long reading |
| #337F50 text on black | 4.29:1 | AA large text | Lc -28.0 | 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
#E3EDE6
oklch(93.7% 0.014 155.6)
-
Step 200
200
#CDDFD1
oklch(88.6% 0.027 152.3)
-
Step 300
300
#AACAB3
oklch(80.9% 0.047 154)
-
Step 400
400
#7BAF8B
oklch(70.7% 0.076 153.9)
-
Step 500
500
#579B6E
oklch(63.2% 0.098 153.7)
-
Step 600
600 (this color)
#337F50
oklch(53.6% 0.106 153.6)
-
Step 700
700
#2B7146
oklch(49.2% 0.099 153.6)
-
Step 800
800
#255C3A
oklch(42.8% 0.081 153.9)
-
Step 900
900
#244B32
oklch(37.6% 0.062 154.1)
-
Step 950
950
#162C1D
oklch(27% 0.04 153.2)
#337F50 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) | #7F754D | 0.093 |
| Deuteranopia (no green cones) | #756E53 | 0.091 |
| Tritanopia (no blue cones) | #1B7D73 | 0.055 |
| Achromatopsia (no color) | #717171 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337F50
#337F50
oklch(53.6% 0.106 153.6)
- #925587
#925587
oklch(53.7% 0.105 333.8)
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 #337F50, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.032
- Sea Green #2E8B57 ΔE 0.035
- Dark Sage #598556 ΔE 0.045
- Military Green #667C3E ΔE 0.053
- Viridian #1E9167 ΔE 0.053
- Muddy Green #657432 ΔE 0.058
- Tree Green #2A7E19 ΔE 0.059
- Fern Green #548D44 ΔE 0.060
Use #337F50 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.