#175C7E
Closest named color: Light Navy Blue (#2E5A88). oklch(45% 0.086 235.4), rgb(23, 92, 126).
Aa
White text reads best on this color (7.32:1).
About this color
#175C7E is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.086 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.026 away. White text reads best on it, at 7.32:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.86:1 |
| White text | 7.32:1 |
Values
| HEX | #175C7E |
| RGB | rgb(23, 92, 126) |
| HSL | hsl(200, 69%, 29%) |
| OKLCH | oklch(45% 0.086 235.4) |
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 #175C7E | 7.32:1 | AAA | Lc -90.0 | Fine for body text |
| Black text on #175C7E | 2.86:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #175C7E text on white | 7.32:1 | AAA | Lc 85.1 | Fine for body text |
| #175C7E text on black | 2.86:1 | Fails | Lc -16.9 | 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 800.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C8DDE9
oklch(88.6% 0.028 232.7)
-
Step 300
300
#A2C6DD
oklch(80.8% 0.05 236.3)
-
Step 400
400
#6DA9CC
oklch(70.7% 0.081 235.1)
-
Step 500
500
#4293BF
oklch(63.2% 0.103 235.4)
-
Step 600
600
#187CAB
oklch(55.5% 0.112 235.7)
-
Step 700
700
#046993
oklch(49.2% 0.103 235.2)
-
Step 800
800 (this color)
#175C7E
oklch(45% 0.086 235.4)
-
Step 900
900
#164760
oklch(37.8% 0.067 234.9)
-
Step 950
950
#0F2A38
oklch(27.1% 0.042 233.9)
#175C7E 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) | #4B5C80 | 0.051 |
| Deuteranopia (no green cones) | #3E527D | 0.043 |
| Tritanopia (no blue cones) | #006568 | 0.054 |
| Achromatopsia (no color) | #565656 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #175C7E
#175C7E
oklch(45% 0.086 235.4)
- #794721
#794721
oklch(44.9% 0.086 55.5)
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 #175C7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.026
- Deep Sea Blue #015482 ΔE 0.030
- YInMn Blue #415A77 ΔE 0.037
- Petrol #005F6A ΔE 0.039
- Light Navy #155084 ΔE 0.041
- Dusk Blue #26538D ΔE 0.042
- Peacock Blue #016795 ΔE 0.044
- Denim #3B638C ΔE 0.045
Use #175C7E 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.