#175C74
Closest named color: Petrol (#005F6A). oklch(44.5% 0.076 226.3), rgb(23, 92, 116).
Aa
White text reads best on this color (7.44:1).
About this color
#175C74 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 44%, its chroma 0.076 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.024 away. White text reads best on it, at 7.44:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.81:1 |
| White text | 7.44:1 |
Values
| HEX | #175C74 |
| RGB | rgb(23, 92, 116) |
| HSL | hsl(195, 67%, 27%) |
| OKLCH | oklch(44.5% 0.076 226.3) |
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 #175C74 | 7.44:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #175C74 | 2.81:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #175C74 text on white | 7.44:1 | AAA | Lc 85.6 | Fine for body text |
| #175C74 text on black | 2.81:1 | Fails | Lc -16.5 | 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
#C9DDE6
oklch(88.5% 0.025 226.5)
-
Step 300
300
#A3C7D7
oklch(80.9% 0.045 226.7)
-
Step 400
400
#6FAAC3
oklch(70.7% 0.071 226.6)
-
Step 500
500
#4495B4
oklch(63.2% 0.091 226.1)
-
Step 600
600
#1C7E9F
oklch(55.5% 0.098 226.4)
-
Step 700
700
#086B88
oklch(49.2% 0.091 225.4)
-
Step 800
800 (this color)
#175C74
oklch(44.5% 0.076 226.3)
-
Step 900
900
#17485A
oklch(37.8% 0.06 226.2)
-
Step 950
950
#102A35
oklch(27% 0.038 228.2)
#175C74 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) | #4F5A75 | 0.057 |
| Deuteranopia (no green cones) | #435174 | 0.050 |
| Tritanopia (no blue cones) | #006364 | 0.041 |
| Achromatopsia (no color) | #555555 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #175C74
#175C74
oklch(44.5% 0.076 226.3)
- #76462E
#76462E
oklch(44.5% 0.076 46.7)
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 #175C74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.024
- YInMn Blue #415A77 ΔE 0.039
- Deep Sea Blue #015482 ΔE 0.040
- Light Navy Blue #2E5A88 ΔE 0.041
- Deep Teal #00555A ΔE 0.048
- Dark Aqua #05696B ΔE 0.048
- Light Navy #155084 ΔE 0.051
- Denim #3B638C ΔE 0.055
Use #175C74 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.