#337273
Closest named color: Deep Turquoise (#017374). oklch(51.2% 0.064 196.7), rgb(51, 114, 115).
Aa
White text reads best on this color (5.53:1).
About this color
#337273 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 51%, its chroma 0.064 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Turquoise (#017374), ΔE 0.023 away. White text reads best on it, at 5.53:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Deep Turquoise (#017374) |
| Black text | 3.79:1 |
| White text | 5.53:1 |
Values
| HEX | #337273 |
| RGB | rgb(51, 114, 115) |
| HSL | hsl(181, 39%, 33%) |
| OKLCH | oklch(51.2% 0.064 196.7) |
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 #337273 | 5.53:1 | AA | Lc -82.8 | Fine for body text |
| Black text on #337273 | 3.79:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #337273 text on white | 5.53:1 | AA | Lc 77.5 | Fine for body text |
| #337273 text on black | 3.79:1 | AA large text | Lc -24.3 | 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 700.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CDDDDD
oklch(88.6% 0.017 196.8)
-
Step 300
300
#AAC7C7
oklch(80.8% 0.031 196.6)
-
Step 400
400
#7CABAB
oklch(70.8% 0.05 196.1)
-
Step 500
500
#589696
oklch(63.1% 0.064 195.6)
-
Step 600
600
#3B8081
oklch(55.6% 0.069 196.6)
-
Step 700
700 (this color)
#337273
oklch(51.2% 0.064 196.7)
-
Step 800
800
#265859
oklch(42.7% 0.054 197.1)
-
Step 900
900
#244949
oklch(37.8% 0.042 195.5)
-
Step 950
950
#162A2B
oklch(26.9% 0.026 199.8)
#337273 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) | #6B6D73 | 0.067 |
| Deuteranopia (no green cones) | #606573 | 0.062 |
| Tritanopia (no blue cones) | #007572 | 0.024 |
| Achromatopsia (no color) | #686868 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337273
#337273
oklch(51.2% 0.064 196.7)
- #885759
#885759
oklch(51.1% 0.065 16.9)
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 #337273, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Turquoise #017374 ΔE 0.023
- Dark Aquamarine #017371 ΔE 0.024
- Deep Aqua #08787F ΔE 0.026
- Bluegreen #017A79 ΔE 0.028
- Dark Aqua #05696B ΔE 0.041
- Teal #008080 ΔE 0.042
- Slate #516572 ΔE 0.048
- Ocean #017B92 ΔE 0.049
Use #337273 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.