#337F73
Closest named color: Teal (#008080). oklch(54.6% 0.077 181.3), rgb(51, 127, 115).
Aa
White text reads best on this color (4.74:1).
About this color
#337F73 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 55%, its chroma 0.077 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.025 away. White text reads best on it, at 4.74:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.42:1 |
| White text | 4.74:1 |
Values
| HEX | #337F73 |
| RGB | rgb(51, 127, 115) |
| HSL | hsl(171, 43%, 35%) |
| OKLCH | oklch(54.6% 0.077 181.3) |
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 #337F73 | 4.74:1 | AA | Lc -78.2 | Fine for body text |
| Black text on #337F73 | 4.42:1 | AA large text | Lc 31.3 | Non-text elements, placeholder text |
| #337F73 text on white | 4.74:1 | AA | Lc 72.7 | Content text, not long reading |
| #337F73 text on black | 4.42:1 | AA large text | Lc -29.0 | 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
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDEDA
oklch(88.6% 0.02 181.1)
-
Step 300
300
#A9C8C2
oklch(80.8% 0.034 182.4)
-
Step 400
400
#7AACA3
oklch(70.6% 0.055 182.3)
-
Step 500
500
#55988C
oklch(63.2% 0.071 181)
-
Step 600
600 (this color)
#337F73
oklch(54.6% 0.077 181.3)
-
Step 700
700
#286E63
oklch(49.1% 0.072 181.1)
-
Step 800
800
#235A51
oklch(42.8% 0.06 180.9)
-
Step 900
900
#224A43
oklch(37.8% 0.047 180.8)
-
Step 950
950
#152B27
oklch(26.9% 0.029 181)
#337F73 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) | #7A7873 | 0.083 |
| Deuteranopia (no green cones) | #6E6F74 | 0.078 |
| Tritanopia (no blue cones) | #00817B | 0.021 |
| Achromatopsia (no color) | #737373 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337F73
#337F73
oklch(54.6% 0.077 181.3)
- #965D6D
#965D6D
oklch(54.6% 0.077 1.8)
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 #337F73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.025
- Bluegreen #017A79 ΔE 0.030
- Deep Aqua #08787F ΔE 0.039
- Dark Cyan #008B8B ΔE 0.043
- Dark Aquamarine #017371 ΔE 0.047
- Deep Turquoise #017374 ΔE 0.048
- Ocean #017B92 ΔE 0.056
- Dusty Teal #4C9085 ΔE 0.060
Use #337F73 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.