#174B7A
Closest named color: Light Navy (#155084). oklch(40.4% 0.096 249.7), rgb(23, 75, 122).
Aa
White text reads best on this color (9.03:1).
About this color
#174B7A is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.096 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.020 away. White text reads best on it, at 9.03:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.32:1 |
| White text | 9.03:1 |
Values
| HEX | #174B7A |
| RGB | rgb(23, 75, 122) |
| HSL | hsl(208, 68%, 28%) |
| OKLCH | oklch(40.4% 0.096 249.7) |
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 #174B7A | 9.03:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #174B7A | 2.32:1 | Fails | Lc 13.5 | Not readable |
| #174B7A text on white | 9.03:1 | AAA | Lc 90.4 | Preferred for body text |
| #174B7A text on black | 2.32:1 | Fails | Lc -11.9 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CADBED
oklch(88.4% 0.031 249.7)
-
Step 300
300
#A6C4E4
oklch(80.9% 0.056 250.2)
-
Step 400
400
#75A5D7
oklch(70.7% 0.09 250.2)
-
Step 500
500
#4F8ECC
oklch(63.2% 0.114 249.7)
-
Step 600
600
#3077B9
oklch(55.7% 0.125 249.7)
-
Step 700
700
#22649F
oklch(49.2% 0.115 249.4)
-
Step 800
800 (this color)
#174B7A
oklch(40.4% 0.096 249.7)
-
Step 900
900
#1F4467
oklch(37.7% 0.074 249.2)
-
Step 950
950
#13283D
oklch(27.1% 0.048 250)
#174B7A 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) | #354E7C | 0.032 |
| Deuteranopia (no green cones) | #264579 | 0.020 |
| Tritanopia (no blue cones) | #00565C | 0.070 |
| Achromatopsia (no color) | #494949 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174B7A
#174B7A
oklch(40.4% 0.096 249.7)
- #663F00
#663F00
oklch(40.4% 0.087 70.4)
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 #174B7A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.020
- Twilight Blue #0A437A ΔE 0.027
- Deep Sea Blue #015482 ΔE 0.028
- Cobalt #1E488F ΔE 0.038
- Dusk Blue #26538D ΔE 0.041
- Dark Grey Blue #29465B ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.055
- Marine Blue #01386A ΔE 0.065
Use #174B7A 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.