#174D87
Closest named color: Light Navy (#155084). oklch(41.8% 0.111 253.5), rgb(23, 77, 135).
Aa
White text reads best on this color (8.57:1).
About this color
#174D87 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.111 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.011 away. White text reads best on it, at 8.57:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.44:1 |
| White text | 8.57:1 |
Values
| HEX | #174D87 |
| RGB | rgb(23, 77, 135) |
| HSL | hsl(211, 71%, 31%) |
| OKLCH | oklch(41.8% 0.111 253.5) |
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 #174D87 | 8.57:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #174D87 | 2.44:1 | Fails | Lc 14.9 | Not readable |
| #174D87 text on white | 8.57:1 | AAA | Lc 89.1 | Fine for body text |
| #174D87 text on black | 2.44:1 | Fails | Lc -13.1 | Not readable |
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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C9DBF1
oklch(88.5% 0.036 253.5)
-
Step 300
300
#A4C4EA
oklch(81% 0.064 253)
-
Step 400
400
#71A4E0
oklch(70.7% 0.104 253.2)
-
Step 500
500
#4A8CD8
oklch(63.2% 0.134 253.5)
-
Step 600
600
#2A74C5
oklch(55.5% 0.145 253.6)
-
Step 700
700
#1C61AA
oklch(49% 0.134 253.5)
-
Step 800
800 (this color)
#174D87
oklch(41.8% 0.111 253.5)
-
Step 900
900
#1C436E
oklch(37.8% 0.086 253)
-
Step 950
950
#112741
oklch(26.9% 0.056 253.9)
#174D87 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) | #305289 | 0.028 |
| Deuteranopia (no green cones) | #1C4786 | 0.017 |
| Tritanopia (no blue cones) | #005B63 | 0.084 |
| Achromatopsia (no color) | #4C4C4C | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174D87
#174D87
oklch(41.8% 0.111 253.5)
- #694400
#694400
oklch(41.9% 0.089 74)
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 #174D87, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.011
- Cobalt #1E488F ΔE 0.021
- Dusk Blue #26538D ΔE 0.024
- Deep Sea Blue #015482 ΔE 0.025
- Twilight Blue #0A437A ΔE 0.037
- Light Navy Blue #2E5A88 ΔE 0.046
- Denim Blue #3B5B92 ΔE 0.059
- Twilight #4E518B ΔE 0.065
Use #174D87 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.