#337D5E
Closest named color: Sea Green (#2E8B57). oklch(53.4% 0.089 163.1), rgb(51, 125, 94).
Aa
White text reads best on this color (4.95:1).
About this color
#337D5E is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.089 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.048 away. White text reads best on it, at 4.95:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.089) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.23:1 |
| White text | 4.95:1 |
Values
| HEX | #337D5E |
| RGB | rgb(51, 125, 94) |
| HSL | hsl(155, 42%, 35%) |
| OKLCH | oklch(53.4% 0.089 163.1) |
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 #337D5E | 4.95:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #337D5E | 4.23:1 | AA large text | Lc 30.0 | Dividers and decoration only |
| #337D5E text on white | 4.95:1 | AA | Lc 74.1 | Content text, not long reading |
| #337D5E text on black | 4.23:1 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3ECE8
oklch(93.5% 0.011 167.8)
-
Step 200
200
#CDDED5
oklch(88.5% 0.022 163)
-
Step 300
300
#AAC9B9
oklch(80.8% 0.04 163)
-
Step 400
400
#7CAE95
oklch(70.8% 0.065 162.5)
-
Step 500
500
#58997B
oklch(63.1% 0.082 162.9)
-
Step 600
600 (this color)
#337D5E
oklch(53.4% 0.089 163.1)
-
Step 700
700
#2C6F53
oklch(49% 0.082 163.1)
-
Step 800
800
#265B44
oklch(42.8% 0.069 162.7)
-
Step 900
900
#244B39
oklch(37.8% 0.055 162.2)
-
Step 950
950
#162C22
oklch(27.1% 0.034 163.4)
#337D5E 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) | #7B745C | 0.087 |
| Deuteranopia (no green cones) | #706D60 | 0.083 |
| Tritanopia (no blue cones) | #117D74 | 0.035 |
| Achromatopsia (no color) | #707070 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337D5E
#337D5E
oklch(53.4% 0.089 163.1)
- #91577A
#91577A
oklch(53.4% 0.09 343.6)
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 #337D5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.048
- Bluegreen #017A79 ΔE 0.048
- Dark Sage #598556 ΔE 0.049
- Teal #008080 ΔE 0.051
- Jungle Green #048243 ΔE 0.052
- Dark Aquamarine #017371 ΔE 0.055
- Deep Turquoise #017374 ΔE 0.058
- Viridian #1E9167 ΔE 0.058
Use #337D5E 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.