#337E5C
Closest named color: Sea Green (#2E8B57). oklch(53.6% 0.092 161.2), rgb(51, 126, 92).
Aa
White text reads best on this color (4.90:1).
About this color
#337E5C is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.092 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.043 away. White text reads best on it, at 4.90:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.092) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.27:1 |
| White text | 4.90:1 |
Values
| HEX | #337E5C |
| RGB | rgb(51, 126, 92) |
| HSL | hsl(153, 42%, 35%) |
| OKLCH | oklch(53.6% 0.092 161.2) |
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 #337E5C | 4.90:1 | AA | Lc -79.2 | Fine for body text |
| Black text on #337E5C | 4.27:1 | AA large text | Lc 30.3 | Non-text elements, placeholder text |
| #337E5C text on white | 4.90:1 | AA | Lc 73.8 | Content text, not long reading |
| #337E5C text on black | 4.27:1 | AA large text | Lc -27.9 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3ECE7
oklch(93.5% 0.012 162)
-
Step 200
200
#CDDED4
oklch(88.5% 0.023 160.2)
-
Step 300
300
#AAC9B8
oklch(80.8% 0.041 161.4)
-
Step 400
400
#7BAE93
oklch(70.7% 0.067 160.9)
-
Step 500
500
#579A79
oklch(63.2% 0.086 161.2)
-
Step 600
600 (this color)
#337E5C
oklch(53.6% 0.092 161.2)
-
Step 700
700
#2B7051
oklch(49.2% 0.086 161.2)
-
Step 800
800
#255B42
oklch(42.7% 0.072 161)
-
Step 900
900
#244B38
oklch(37.8% 0.056 160.9)
-
Step 950
950
#162C21
oklch(27.1% 0.035 161)
#337E5C 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) | #7C755A | 0.088 |
| Deuteranopia (no green cones) | #726E5E | 0.085 |
| Tritanopia (no blue cones) | #137E75 | 0.039 |
| Achromatopsia (no color) | #717171 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337E5C
#337E5C
oklch(53.6% 0.092 161.2)
- #92577D
#92577D
oklch(53.6% 0.093 341.6)
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 #337E5C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.043
- Dark Sage #598556 ΔE 0.046
- Jungle Green #048243 ΔE 0.048
- Bluegreen #017A79 ΔE 0.052
- Teal #008080 ΔE 0.054
- Viridian #1E9167 ΔE 0.055
- Military Green #667C3E ΔE 0.059
- Dark Aquamarine #017371 ΔE 0.059
Use #337E5C 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.