#175C72
Closest named color: Petrol (#005F6A). oklch(44.4% 0.074 224.1), rgb(23, 92, 114).
Aa
White text reads best on this color (7.47:1).
About this color
#175C72 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 44%, its chroma 0.074 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.021 away. White text reads best on it, at 7.47:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.81:1 |
| White text | 7.47:1 |
Values
| HEX | #175C72 |
| RGB | rgb(23, 92, 114) |
| HSL | hsl(195, 66%, 27%) |
| OKLCH | oklch(44.4% 0.074 224.1) |
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 #175C72 | 7.47:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #175C72 | 2.81:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #175C72 text on white | 7.47:1 | AAA | Lc 85.6 | Fine for body text |
| #175C72 text on black | 2.81:1 | Fails | Lc -16.4 | 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 800.
-
Step 50
50
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C9DDE5
oklch(88.5% 0.024 223.7)
-
Step 300
300
#A3C7D6
oklch(80.8% 0.044 225.1)
-
Step 400
400
#6FAAC1
oklch(70.6% 0.07 224.6)
-
Step 500
500
#4495B1
oklch(63.1% 0.089 223.7)
-
Step 600
600
#1C7F9D
oklch(55.6% 0.097 223.8)
-
Step 700
700
#096B86
oklch(49.1% 0.09 223.8)
-
Step 800
800 (this color)
#175C72
oklch(44.4% 0.074 224.1)
-
Step 900
900
#184858
oklch(37.7% 0.058 223.7)
-
Step 950
950
#102A34
oklch(27% 0.037 225.8)
#175C72 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) | #505A73 | 0.058 |
| Deuteranopia (no green cones) | #435172 | 0.051 |
| Tritanopia (no blue cones) | #006363 | 0.039 |
| Achromatopsia (no color) | #555555 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #175C72
#175C72
oklch(44.4% 0.074 224.1)
- #764530
#764530
oklch(44.4% 0.075 43.6)
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 #175C72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.021
- YInMn Blue #415A77 ΔE 0.040
- Deep Sea Blue #015482 ΔE 0.042
- Light Navy Blue #2E5A88 ΔE 0.044
- Deep Teal #00555A ΔE 0.045
- Dark Aqua #05696B ΔE 0.046
- Light Navy #155084 ΔE 0.054
- Dark Green Blue #1F6357 ΔE 0.057
Use #175C72 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.