#174F8D
Closest named color: Light Navy (#155084). oklch(42.7% 0.117 254.2), rgb(23, 79, 141).
Aa
White text reads best on this color (8.26:1).
About this color
#174F8D is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.117 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.016 away. White text reads best on it, at 8.26:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.53:1 |
| White text | 8.26:1 |
Values
| HEX | #174F8D |
| RGB | rgb(23, 79, 141) |
| HSL | hsl(212, 72%, 32%) |
| OKLCH | oklch(42.7% 0.117 254.2) |
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 #174F8D | 8.26:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #174F8D | 2.53:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #174F8D text on white | 8.26:1 | AAA | Lc 88.1 | Fine for body text |
| #174F8D text on black | 2.53:1 | Fails | Lc -14.0 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DBF3
oklch(88.5% 0.039 254.3)
-
Step 300
300
#A3C4ED
oklch(81% 0.068 254.1)
-
Step 400
400
#6FA4E4
oklch(70.8% 0.11 253.8)
-
Step 500
500
#478BDC
oklch(63% 0.141 254.3)
-
Step 600
600
#2673CA
oklch(55.5% 0.154 254.5)
-
Step 700
700
#1860AE
oklch(49% 0.142 254.3)
-
Step 800
800 (this color)
#174F8D
oklch(42.7% 0.117 254.2)
-
Step 900
900
#1A4271
oklch(37.7% 0.092 254.4)
-
Step 950
950
#112742
oklch(27% 0.058 254.7)
#174F8D 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) | #30548F | 0.028 |
| Deuteranopia (no green cones) | #194A8C | 0.014 |
| Tritanopia (no blue cones) | #005E67 | 0.088 |
| Achromatopsia (no color) | #4E4E4E | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174F8D
#174F8D
oklch(42.7% 0.117 254.2)
- #6C4600
#6C4600
oklch(42.7% 0.091 73.9)
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 #174F8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.016
- Dusk Blue #26538D ΔE 0.018
- Cobalt #1E488F ΔE 0.020
- Deep Sea Blue #015482 ΔE 0.027
- Light Navy Blue #2E5A88 ΔE 0.042
- Twilight Blue #0A437A ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.052
- Twilight #4E518B ΔE 0.062
Use #174F8D 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.