#337F6B
Closest named color: Teal (#008080). oklch(54.3% 0.082 173.1), rgb(51, 127, 107).
Aa
White text reads best on this color (4.78:1).
About this color
#337F6B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.082 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.035 away. White text reads best on it, at 4.78:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.38:1 |
| White text | 4.78:1 |
Values
| HEX | #337F6B |
| RGB | rgb(51, 127, 107) |
| HSL | hsl(164, 43%, 35%) |
| OKLCH | oklch(54.3% 0.082 173.1) |
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 #337F6B | 4.78:1 | AA | Lc -78.4 | Fine for body text |
| Black text on #337F6B | 4.38:1 | AA large text | Lc 31.1 | Non-text elements, placeholder text |
| #337F6B text on white | 4.78:1 | AA | Lc 73.0 | Content text, not long reading |
| #337F6B text on black | 4.38:1 | AA large text | Lc -28.7 | 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
#CCDED8
oklch(88.5% 0.021 173.9)
-
Step 300
300
#A9C9BE
oklch(80.9% 0.038 172.5)
-
Step 400
400
#7AAD9D
oklch(70.7% 0.059 173.1)
-
Step 500
500
#569985
oklch(63.2% 0.076 172.5)
-
Step 600
600 (this color)
#337F6B
oklch(54.3% 0.082 173.1)
-
Step 700
700
#296F5D
oklch(49.2% 0.076 173.2)
-
Step 800
800
#245A4C
oklch(42.7% 0.062 173.6)
-
Step 900
900
#234A3F
oklch(37.7% 0.049 173.1)
-
Step 950
950
#152B25
oklch(26.9% 0.03 174.4)
#337F6B 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) | #7B776A | 0.085 |
| Deuteranopia (no green cones) | #706F6C | 0.081 |
| Tritanopia (no blue cones) | #008079 | 0.026 |
| Achromatopsia (no color) | #727272 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337F6B
#337F6B
oklch(54.3% 0.082 173.1)
- #955B74
#955B74
oklch(54.4% 0.083 352.8)
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 #337F6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.035
- Bluegreen #017A79 ΔE 0.037
- Deep Aqua #08787F ΔE 0.048
- Dark Aquamarine #017371 ΔE 0.050
- Dark Cyan #008B8B ΔE 0.050
- Deep Turquoise #017374 ΔE 0.052
- Dark Sage #598556 ΔE 0.052
- Sea Green #2E8B57 ΔE 0.055
Use #337F6B 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.