#47507A
Closest named color: Dusk (#4E5481). oklch(44.2% 0.07 274), rgb(71, 80, 122).
Aa
White text reads best on this color (7.78:1).
About this color
#47507A is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.070 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.019 away. White text reads best on it, at 7.78:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.69:1 |
| White text | 7.78:1 |
Values
| HEX | #47507A |
| RGB | rgb(71, 80, 122) |
| HSL | hsl(229, 26%, 38%) |
| OKLCH | oklch(44.2% 0.07 274) |
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 #47507A | 7.78:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #47507A | 2.69:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #47507A text on white | 7.78:1 | AAA | Lc 87.0 | Fine for body text |
| #47507A text on black | 2.69:1 | Fails | Lc -15.1 | Dividers and decoration only |
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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F2
oklch(93.5% 0.012 276.1)
-
Step 200
200
#D4D8E9
oklch(88.4% 0.024 275.3)
-
Step 300
300
#B8BFDC
oklch(80.9% 0.042 274.7)
-
Step 400
400
#939ECA
oklch(70.6% 0.066 273.7)
-
Step 500
500
#7986BD
oklch(63.1% 0.084 273.5)
-
Step 600
600
#636FA9
oklch(55.7% 0.091 274.2)
-
Step 700
700
#525D91
oklch(49.2% 0.084 273.8)
-
Step 800
800 (this color)
#47507A
oklch(44.2% 0.07 274)
-
Step 900
900
#383F5F
oklch(37.6% 0.056 274)
-
Step 950
950
#212537
oklch(26.9% 0.034 274.3)
#47507A 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) | #42547C | 0.013 |
| Deuteranopia (no green cones) | #3E5079 | 0.013 |
| Tritanopia (no blue cones) | #37585F | 0.062 |
| Achromatopsia (no color) | #525252 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #47507A
#47507A
oklch(44.2% 0.07 274)
- #605221
#605221
oklch(44.2% 0.07 93.4)
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 #47507A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.019
- Twilight #4E518B ΔE 0.030
- YInMn Blue #415A77 ΔE 0.032
- Dusty Grape #545775 ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.040
- Denim Blue #3B5B92 ΔE 0.045
- Dusk Blue #26538D ΔE 0.047
- Light Navy #155084 ΔE 0.053
Use #47507A 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.