#174D7C
Closest named color: Light Navy (#155084). oklch(41% 0.096 249), rgb(23, 77, 124).
Aa
White text reads best on this color (8.79:1).
About this color
#174D7C is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.096 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.015 away. White text reads best on it, at 8.79:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.38:1 |
| White text | 8.79:1 |
Values
| HEX | #174D7C |
| RGB | rgb(23, 77, 124) |
| HSL | hsl(208, 69%, 29%) |
| OKLCH | oklch(41% 0.096 249) |
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 #174D7C | 8.79:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #174D7C | 2.38:1 | Fails | Lc 14.2 | Not readable |
| #174D7C text on white | 8.79:1 | AAA | Lc 89.7 | Fine for body text |
| #174D7C text on black | 2.38:1 | Fails | Lc -12.5 | 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
#A5C4E4
oklch(80.8% 0.056 249.4)
-
Step 400
400
#74A5D7
oklch(70.7% 0.091 249.7)
-
Step 500
500
#4D8ECC
oklch(63.1% 0.115 249.1)
-
Step 600
600
#2D77B9
oklch(55.6% 0.126 249.1)
-
Step 700
700
#1F649F
oklch(49.1% 0.116 248.8)
-
Step 800
800 (this color)
#174D7C
oklch(41% 0.096 249)
-
Step 900
900
#1E4468
oklch(37.7% 0.076 249.4)
-
Step 950
950
#12283D
oklch(27% 0.048 249)
#174D7C 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) | #37507E | 0.033 |
| Deuteranopia (no green cones) | #28467B | 0.023 |
| Tritanopia (no blue cones) | #00585E | 0.070 |
| Achromatopsia (no color) | #4B4B4B | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174D7C
#174D7C
oklch(41% 0.096 249)
- #694000
#694000
oklch(41% 0.089 69.3)
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 #174D7C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.015
- Deep Sea Blue #015482 ΔE 0.021
- Twilight Blue #0A437A ΔE 0.033
- Dusk Blue #26538D ΔE 0.035
- Cobalt #1E488F ΔE 0.038
- Light Navy Blue #2E5A88 ΔE 0.049
- Dark Grey Blue #29465B ΔE 0.056
- YInMn Blue #415A77 ΔE 0.064
Use #174D7C 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.