#337F61
Closest named color: Sea Green (#2E8B57). oklch(54% 0.089 164.4), rgb(51, 127, 97).
Aa
White text reads best on this color (4.82:1).
About this color
#337F61 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.089 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.044 away. White text reads best on it, at 4.82:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.089) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.34:1 |
| White text | 4.82:1 |
Values
| HEX | #337F61 |
| RGB | rgb(51, 127, 97) |
| HSL | hsl(156, 43%, 35%) |
| OKLCH | oklch(54% 0.089 164.4) |
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 #337F61 | 4.82:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #337F61 | 4.34:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #337F61 text on white | 4.82:1 | AA | Lc 73.3 | Content text, not long reading |
| #337F61 text on black | 4.34:1 | AA large text | Lc -28.4 | 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
#CCDED5
oklch(88.5% 0.023 164.5)
-
Step 300
300
#AAC9BA
oklch(80.9% 0.039 164.6)
-
Step 400
400
#7BAE96
oklch(70.8% 0.065 163.9)
-
Step 500
500
#56997C
oklch(63% 0.082 164.3)
-
Step 600
600 (this color)
#337F61
oklch(54% 0.089 164.4)
-
Step 700
700
#2A6F54
oklch(49% 0.082 164.4)
-
Step 800
800
#245B45
oklch(42.7% 0.069 164.3)
-
Step 900
900
#234B3A
oklch(37.8% 0.055 164)
-
Step 950
950
#152C22
oklch(27.1% 0.035 164.2)
#337F61 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) | #7D765F | 0.089 |
| Deuteranopia (no green cones) | #726F63 | 0.085 |
| Tritanopia (no blue cones) | #0D7F77 | 0.036 |
| Achromatopsia (no color) | #727272 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337F61
#337F61
oklch(54% 0.089 164.4)
- #93597B
#93597B
oklch(54% 0.089 344.4)
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 #337F61, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.044
- Dark Sage #598556 ΔE 0.046
- Teal #008080 ΔE 0.048
- Bluegreen #017A79 ΔE 0.048
- Viridian #1E9167 ΔE 0.053
- Jungle Green #048243 ΔE 0.053
- Dark Aquamarine #017371 ΔE 0.057
- Deep Aqua #08787F ΔE 0.060
Use #337F61 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.