#174C7E
Closest named color: Light Navy (#155084). oklch(40.9% 0.1 250.7), rgb(23, 76, 126).
Aa
White text reads best on this color (8.85:1).
About this color
#174C7E is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.100 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.014 away. White text reads best on it, at 8.85:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.37:1 |
| White text | 8.85:1 |
Values
| HEX | #174C7E |
| RGB | rgb(23, 76, 126) |
| HSL | hsl(209, 69%, 29%) |
| OKLCH | oklch(40.9% 0.1 250.7) |
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 #174C7E | 8.85:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #174C7E | 2.37:1 | Fails | Lc 14.1 | Not readable |
| #174C7E text on white | 8.85:1 | AAA | Lc 89.9 | Fine for body text |
| #174C7E text on black | 2.37:1 | Fails | Lc -12.4 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CADBEE
oklch(88.5% 0.032 251.1)
-
Step 300
300
#A5C4E6
oklch(80.9% 0.059 250.9)
-
Step 400
400
#74A5D9
oklch(70.8% 0.093 250.7)
-
Step 500
500
#4D8DCF
oklch(63% 0.12 250.9)
-
Step 600
600
#2E76BC
oklch(55.6% 0.13 250.9)
-
Step 700
700
#2063A2
oklch(49.1% 0.121 250.7)
-
Step 800
800 (this color)
#174C7E
oklch(40.9% 0.1 250.7)
-
Step 900
900
#1E4469
oklch(37.8% 0.077 250)
-
Step 950
950
#12283E
oklch(27.1% 0.05 250.2)
#174C7E 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) | #344F80 | 0.030 |
| Deuteranopia (no green cones) | #24467D | 0.019 |
| Tritanopia (no blue cones) | #00585F | 0.074 |
| Achromatopsia (no color) | #4A4A4A | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174C7E
#174C7E
oklch(40.9% 0.1 250.7)
- #684000
#684000
oklch(40.9% 0.089 70.1)
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 #174C7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.014
- Deep Sea Blue #015482 ΔE 0.024
- Twilight Blue #0A437A ΔE 0.030
- Cobalt #1E488F ΔE 0.033
- Dusk Blue #26538D ΔE 0.034
- Light Navy Blue #2E5A88 ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.059
- Denim Blue #3B5B92 ΔE 0.066
Use #174C7E 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.