#175D87
Closest named color: Light Navy Blue (#2E5A88). oklch(45.8% 0.095 240.7), rgb(23, 93, 135).
Aa
White text reads best on this color (7.11:1).
About this color
#175D87 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.095 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.018 away. White text reads best on it, at 7.11:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.95:1 |
| White text | 7.11:1 |
Values
| HEX | #175D87 |
| RGB | rgb(23, 93, 135) |
| HSL | hsl(203, 71%, 31%) |
| OKLCH | oklch(45.8% 0.095 240.7) |
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 #175D87 | 7.11:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #175D87 | 2.95:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #175D87 text on white | 7.11:1 | AAA | Lc 84.3 | Fine for body text |
| #175D87 text on black | 2.95:1 | Fails | Lc -17.7 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF4
oklch(93.7% 0.016 239.1)
-
Step 200
200
#C8DCEC
oklch(88.4% 0.031 242)
-
Step 300
300
#A1C6E2
oklch(80.9% 0.056 241)
-
Step 400
400
#6CA8D3
oklch(70.7% 0.089 240.8)
-
Step 500
500
#3F91C7
oklch(63% 0.114 240.8)
-
Step 600
600
#127BB4
oklch(55.7% 0.123 240.4)
-
Step 700
700
#00679B
oklch(49.1% 0.115 241)
-
Step 800
800 (this color)
#175D87
oklch(45.8% 0.095 240.7)
-
Step 900
900
#144665
oklch(37.7% 0.074 240.5)
-
Step 950
950
#0E293B
oklch(27% 0.047 240.8)
#175D87 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) | #495E89 | 0.048 |
| Deuteranopia (no green cones) | #3A5386 | 0.038 |
| Tritanopia (no blue cones) | #00676C | 0.062 |
| Achromatopsia (no color) | #585858 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #175D87
#175D87
oklch(45.8% 0.095 240.7)
- #7D4915
#7D4915
oklch(45.8% 0.095 60.6)
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 #175D87, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.018
- Deep Sea Blue #015482 ΔE 0.031
- Peacock Blue #016795 ΔE 0.033
- Dusk Blue #26538D ΔE 0.034
- Denim Blue #3B5B92 ΔE 0.037
- Denim #3B638C ΔE 0.038
- Light Navy #155084 ΔE 0.039
- YInMn Blue #415A77 ΔE 0.042
Use #175D87 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.