#17756D
Closest named color: Dark Aquamarine (#017371). oklch(50.9% 0.083 186.1), rgb(23, 117, 109).
Aa
White text reads best on this color (5.52:1).
About this color
#17756D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 51%, its chroma 0.083 and its hue 186°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.012 away. White text reads best on it, at 5.52:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.80:1 |
| White text | 5.52:1 |
Values
| HEX | #17756D |
| RGB | rgb(23, 117, 109) |
| HSL | hsl(175, 67%, 27%) |
| OKLCH | oklch(50.9% 0.083 186.1) |
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 #17756D | 5.52:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #17756D | 3.80:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #17756D text on white | 5.52:1 | AA | Lc 77.2 | Fine for body text |
| #17756D text on black | 3.80:1 | AA large text | Lc -24.6 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEB
oklch(93.5% 0.011 189.8)
-
Step 200
200
#CADEDB
oklch(88.5% 0.022 186)
-
Step 300
300
#A4CAC4
oklch(81% 0.041 184.7)
-
Step 400
400
#71AEA7
oklch(70.7% 0.064 186.7)
-
Step 500
500
#469A91
oklch(63.2% 0.083 185.9)
-
Step 600
600
#1F847B
oklch(55.6% 0.089 186)
-
Step 700
700 (this color)
#17756D
oklch(50.9% 0.083 186.1)
-
Step 800
800
#125B55
oklch(42.7% 0.069 186.6)
-
Step 900
900
#194B46
oklch(37.8% 0.054 186)
-
Step 950
950
#102C29
oklch(27% 0.034 186.1)
#17756D 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) | #6E6E6D | 0.088 |
| Deuteranopia (no green cones) | #62656E | 0.083 |
| Tritanopia (no blue cones) | #007872 | 0.010 |
| Achromatopsia (no color) | #696969 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17756D
#17756D
oklch(50.9% 0.083 186.1)
- #8E515E
#8E515E
oklch(51% 0.083 6.7)
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 #17756D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.012
- Deep Turquoise #017374 ΔE 0.016
- Bluegreen #017A79 ΔE 0.020
- Deep Aqua #08787F ΔE 0.027
- Teal #008080 ΔE 0.038
- Dark Aqua #05696B ΔE 0.040
- Ocean #017B92 ΔE 0.057
- Dark Green Blue #1F6357 ΔE 0.058
Use #17756D 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.