#175B86
Closest named color: Light Navy Blue (#2E5A88). oklch(45.2% 0.096 242), rgb(23, 91, 134).
Aa
White text reads best on this color (7.29:1).
About this color
#175B86 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.096 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.017 away. White text reads best on it, at 7.29:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.87:1 |
| White text | 7.29:1 |
Values
| HEX | #175B86 |
| RGB | rgb(23, 91, 134) |
| HSL | hsl(203, 71%, 31%) |
| OKLCH | oklch(45.2% 0.096 242) |
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 #175B86 | 7.29:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #175B86 | 2.87:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #175B86 text on white | 7.29:1 | AAA | Lc 85.0 | Fine for body text |
| #175B86 text on black | 2.87:1 | Fails | Lc -17.0 | 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
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200
#C8DCEC
oklch(88.4% 0.031 242)
-
Step 300
300
#A2C6E2
oklch(81% 0.055 241.8)
-
Step 400
400
#6DA8D4
oklch(70.8% 0.089 241.8)
-
Step 500
500
#4191C8
oklch(63.1% 0.114 241.8)
-
Step 600
600
#177AB5
oklch(55.6% 0.124 242)
-
Step 700
700
#03679C
oklch(49.2% 0.115 241.8)
-
Step 800
800 (this color)
#175B86
oklch(45.2% 0.096 242)
-
Step 900
900
#164666
oklch(37.8% 0.075 242)
-
Step 950
950
#0F293B
oklch(27% 0.046 241.6)
#175B86 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) | #475C88 | 0.046 |
| Deuteranopia (no green cones) | #375285 | 0.034 |
| Tritanopia (no blue cones) | #00666A | 0.066 |
| Achromatopsia (no color) | #565656 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #175B86
#175B86
oklch(45.2% 0.096 242)
- #7B4810
#7B4810
oklch(45.3% 0.096 62.2)
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 #175B86, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.017
- Deep Sea Blue #015482 ΔE 0.025
- Dusk Blue #26538D ΔE 0.029
- Light Navy #155084 ΔE 0.034
- Denim Blue #3B5B92 ΔE 0.038
- Peacock Blue #016795 ΔE 0.038
- Denim #3B638C ΔE 0.042
- YInMn Blue #415A77 ΔE 0.042
Use #175B86 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.