#337E59
Closest named color: Sea Green (#2E8B57). oklch(53.5% 0.095 159.1), rgb(51, 126, 89).
Aa
White text reads best on this color (4.91:1).
About this color
#337E59 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.095 and its hue 159°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.041 away. White text reads best on it, at 4.91:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.095) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.26:1 |
| White text | 4.91:1 |
Values
| HEX | #337E59 |
| RGB | rgb(51, 126, 89) |
| HSL | hsl(150, 42%, 35%) |
| OKLCH | oklch(53.5% 0.095 159.1) |
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 #337E59 | 4.91:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #337E59 | 4.26:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #337E59 text on white | 4.91:1 | AA | Lc 73.8 | Content text, not long reading |
| #337E59 text on black | 4.26:1 | 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
#CDDED3
oklch(88.5% 0.024 157.5)
-
Step 300
300
#AACAB7
oklch(81% 0.043 159.2)
-
Step 400
400
#7BAE91
oklch(70.6% 0.069 159.1)
-
Step 500
500
#579A76
oklch(63.1% 0.088 159)
-
Step 600
600 (this color)
#337E59
oklch(53.5% 0.095 159.1)
-
Step 700
700
#2B704E
oklch(49.1% 0.089 158.9)
-
Step 800
800
#255B40
oklch(42.6% 0.074 159.1)
-
Step 900
900
#244B36
oklch(37.7% 0.058 158.4)
-
Step 950
950
#162C20
oklch(27% 0.036 158.9)
#337E59 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) | #7D7557 | 0.090 |
| Deuteranopia (no green cones) | #726D5B | 0.087 |
| Tritanopia (no blue cones) | #157D74 | 0.043 |
| Achromatopsia (no color) | #707070 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337E59
#337E59
oklch(53.5% 0.095 159.1)
- #91567F
#91567F
oklch(53.4% 0.095 339.2)
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 #337E59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.041
- Jungle Green #048243 ΔE 0.044
- Dark Sage #598556 ΔE 0.045
- Viridian #1E9167 ΔE 0.055
- Bluegreen #017A79 ΔE 0.056
- Military Green #667C3E ΔE 0.057
- Teal #008080 ΔE 0.058
- Dark Aquamarine #017371 ΔE 0.062
Use #337E59 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.