#176D71
Closest named color: Dark Aqua (#05696B). oklch(48.9% 0.077 199.7), rgb(23, 109, 113).
Aa
White text reads best on this color (6.06:1).
About this color
#176D71 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 49%, its chroma 0.077 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.017 away. White text reads best on it, at 6.06:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.46:1 |
| White text | 6.06:1 |
Values
| HEX | #176D71 |
| RGB | rgb(23, 109, 113) |
| HSL | hsl(183, 66%, 27%) |
| OKLCH | oklch(48.9% 0.077 199.7) |
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 #176D71 | 6.06:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #176D71 | 3.46:1 | AA large text | Lc 24.1 | Dividers and decoration only |
| #176D71 text on white | 6.06:1 | AA | Lc 79.9 | Fine for body text |
| #176D71 text on black | 3.46:1 | AA large text | Lc -21.9 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CADEDE
oklch(88.6% 0.021 196.8)
-
Step 300
300
#A6C8CA
oklch(80.9% 0.036 200.9)
-
Step 400
400
#73ACAF
oklch(70.6% 0.06 200.1)
-
Step 500
500
#4B979B
oklch(63% 0.075 200)
-
Step 600
600
#288286
oklch(55.7% 0.082 199.4)
-
Step 700
700 (this color)
#176D71
oklch(48.9% 0.077 199.7)
-
Step 800
800
#18595C
oklch(42.6% 0.063 199.6)
-
Step 900
900
#1C4A4C
oklch(37.8% 0.05 199.2)
-
Step 950
950
#122B2C
oklch(27% 0.031 198.9)
#176D71 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) | #646871 | 0.077 |
| Deuteranopia (no green cones) | #585E71 | 0.073 |
| Tritanopia (no blue cones) | #00716E | 0.016 |
| Achromatopsia (no color) | #626262 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #176D71
#176D71
oklch(48.9% 0.077 199.7)
- #864E4E
#864E4E
oklch(48.9% 0.076 20.2)
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 #176D71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.017
- Deep Turquoise #017374 ΔE 0.018
- Dark Aquamarine #017371 ΔE 0.019
- Deep Aqua #08787F ΔE 0.035
- Bluegreen #017A79 ΔE 0.039
- Dark Green Blue #1F6357 ΔE 0.044
- Petrol #005F6A ΔE 0.046
- Slate #516572 ΔE 0.055
Use #176D71 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.