#178173
Closest named color: Teal (#008080). oklch(54.4% 0.092 181.3), rgb(23, 129, 115).
Aa
White text reads best on this color (4.74:1).
About this color
#178173 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.092 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.022 away. White text reads best on it, at 4.74:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.42:1 |
| White text | 4.74:1 |
Values
| HEX | #178173 |
| RGB | rgb(23, 129, 115) |
| HSL | hsl(172, 70%, 30%) |
| OKLCH | oklch(54.4% 0.092 181.3) |
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 #178173 | 4.74:1 | AA | Lc -78.0 | Fine for body text |
| Black text on #178173 | 4.42:1 | AA large text | Lc 31.5 | Non-text elements, placeholder text |
| #178173 text on white | 4.74:1 | AA | Lc 72.5 | Content text, not long reading |
| #178173 text on black | 4.42:1 | AA large text | Lc -29.1 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2EDEA
oklch(93.7% 0.012 178)
-
Step 200
200
#CADEDA
oklch(88.5% 0.022 182.5)
-
Step 300
300
#A4CAC2
oklch(80.9% 0.042 181)
-
Step 400
400
#71AFA3
oklch(70.8% 0.067 180.7)
-
Step 500
500
#469A8D
oklch(63% 0.084 182)
-
Step 600
600 (this color)
#178173
oklch(54.4% 0.092 181.3)
-
Step 700
700
#0A7064
oklch(49% 0.085 181.9)
-
Step 800
800
#115B51
oklch(42.6% 0.071 181.4)
-
Step 900
900
#184B43
oklch(37.6% 0.056 181)
-
Step 950
950
#102C27
oklch(27% 0.035 180.2)
#178173 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) | #7B7972 | 0.098 |
| Deuteranopia (no green cones) | #6D6F74 | 0.092 |
| Tritanopia (no blue cones) | #00847D | 0.015 |
| Achromatopsia (no color) | #737373 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #178173
#178173
oklch(54.4% 0.092 181.3)
- #9C586C
#9C586C
oklch(54.5% 0.092 1.7)
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 #178173, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.022
- Bluegreen #017A79 ΔE 0.028
- Deep Aqua #08787F ΔE 0.039
- Dark Cyan #008B8B ΔE 0.040
- Dark Aquamarine #017371 ΔE 0.045
- Deep Turquoise #017374 ΔE 0.047
- Ocean #017B92 ΔE 0.058
- Viridian #1E9167 ΔE 0.059
Use #178173 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.