#337C65
Closest named color: Bluegreen (#017A79). oklch(53.3% 0.082 169.6), rgb(51, 124, 101).
Aa
White text reads best on this color (4.98:1).
About this color
#337C65 is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.082 and its hue 170°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.038 away. White text reads best on it, at 4.98:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.082) |
| Temperature | in between |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.21:1 |
| White text | 4.98:1 |
Values
| HEX | #337C65 |
| RGB | rgb(51, 124, 101) |
| HSL | hsl(161, 42%, 34%) |
| OKLCH | oklch(53.3% 0.082 169.6) |
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 #337C65 | 4.98:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #337C65 | 4.21:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #337C65 text on white | 4.98:1 | AA | Lc 74.3 | Content text, not long reading |
| #337C65 text on black | 4.21:1 | AA large text | Lc -27.4 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CDDED7
oklch(88.6% 0.021 169.3)
-
Step 300
300
#AAC9BD
oklch(81% 0.037 170)
-
Step 400
400
#7CAD9B
oklch(70.8% 0.059 169.8)
-
Step 500
500
#589882
oklch(63% 0.075 169.8)
-
Step 600
600 (this color)
#337C65
oklch(53.3% 0.082 169.6)
-
Step 700
700
#2C6F5A
oklch(49.2% 0.076 169.6)
-
Step 800
800
#265A49
oklch(42.7% 0.063 169.2)
-
Step 900
900
#244A3D
oklch(37.7% 0.049 169.2)
-
Step 950
950
#162B24
oklch(26.9% 0.03 170.6)
#337C65 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) | #797464 | 0.084 |
| Deuteranopia (no green cones) | #6E6C67 | 0.081 |
| Tritanopia (no blue cones) | #097D75 | 0.028 |
| Achromatopsia (no color) | #707070 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337C65
#337C65
oklch(53.3% 0.082 169.6)
- #905874
#905874
oklch(53.2% 0.083 348.9)
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 #337C65, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.038
- Teal #008080 ΔE 0.041
- Dark Aquamarine #017371 ΔE 0.046
- Deep Turquoise #017374 ΔE 0.048
- Deep Aqua #08787F ΔE 0.049
- Dark Sage #598556 ΔE 0.055
- Sea Green #2E8B57 ΔE 0.057
- Dark Cyan #008B8B ΔE 0.061
Use #337C65 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.