#177285
Closest named color: Deep Aqua (#08787F). oklch(51.1% 0.084 215.9), rgb(23, 114, 133).
Aa
White text reads best on this color (5.55:1).
About this color
#177285 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 51%, its chroma 0.084 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.024 away. White text reads best on it, at 5.55:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.78:1 |
| White text | 5.55:1 |
Values
| HEX | #177285 |
| RGB | rgb(23, 114, 133) |
| HSL | hsl(190, 71%, 31%) |
| OKLCH | oklch(51.1% 0.084 215.9) |
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 #177285 | 5.55:1 | AA | Lc -82.7 | Fine for body text |
| Black text on #177285 | 3.78:1 | AA large text | Lc 26.7 | Dividers and decoration only |
| #177285 text on white | 5.55:1 | AA | Lc 77.4 | Fine for body text |
| #177285 text on black | 3.78:1 | AA large text | Lc -24.4 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#C9DDE3
oklch(88.4% 0.023 217.7)
-
Step 300
300
#A4C8D2
oklch(81% 0.041 216.5)
-
Step 400
400
#70ABBB
oklch(70.7% 0.065 216.7)
-
Step 500
500
#4596AA
oklch(63.1% 0.084 216.4)
-
Step 600
600
#1E8095
oklch(55.6% 0.091 216.1)
-
Step 700
700 (this color)
#177285
oklch(51.1% 0.084 215.9)
-
Step 800
800
#115867
oklch(42.6% 0.07 215.9)
-
Step 900
900
#184954
oklch(37.8% 0.055 215.3)
-
Step 950
950
#102B31
oklch(27.1% 0.034 214.3)
#177285 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) | #656E86 | 0.074 |
| Deuteranopia (no green cones) | #576485 | 0.067 |
| Tritanopia (no blue cones) | #007978 | 0.035 |
| Achromatopsia (no color) | #686868 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #177285
#177285
oklch(51.1% 0.084 215.9)
- #905444
#905444
oklch(51.1% 0.084 35.8)
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 #177285, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.024
- Sea Blue #047495 ΔE 0.025
- Ocean #017B92 ΔE 0.029
- Deep Turquoise #017374 ΔE 0.031
- Dark Aquamarine #017371 ΔE 0.035
- Bluegreen #017A79 ΔE 0.036
- Ocean Blue #03719C ΔE 0.038
- Teal #008080 ΔE 0.047
Use #177285 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.