#47537D
Closest named color: Dusk (#4E5481). oklch(45.1% 0.071 271.2), rgb(71, 83, 125).
Aa
White text reads best on this color (7.49:1).
About this color
#47537D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.071 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.013 away. White text reads best on it, at 7.49:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.80:1 |
| White text | 7.49:1 |
Values
| HEX | #47537D |
| RGB | rgb(71, 83, 125) |
| HSL | hsl(227, 28%, 38%) |
| OKLCH | oklch(45.1% 0.071 271.2) |
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 #47537D | 7.49:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #47537D | 2.80:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #47537D text on white | 7.49:1 | AAA | Lc 86.0 | Fine for body text |
| #47537D text on black | 2.80:1 | Fails | Lc -16.1 | 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
#E7EAF2
oklch(93.7% 0.011 269.5)
-
Step 200
200
#D3D9E9
oklch(88.6% 0.023 269.4)
-
Step 300
300
#B7C0DC
oklch(81% 0.041 271.4)
-
Step 400
400
#919FCB
oklch(70.7% 0.067 270.9)
-
Step 500
500
#7787BD
oklch(63.2% 0.084 271.2)
-
Step 600
600
#6070A9
oklch(55.7% 0.091 271.3)
-
Step 700
700
#4F5D91
oklch(49% 0.085 271.5)
-
Step 800
800 (this color)
#47537D
oklch(45.1% 0.071 271.2)
-
Step 900
900
#37405F
oklch(37.8% 0.055 271.2)
-
Step 950
950
#202538
oklch(26.9% 0.036 272.4)
#47537D 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) | #44577F | 0.012 |
| Deuteranopia (no green cones) | #40537C | 0.010 |
| Tritanopia (no blue cones) | #355C62 | 0.064 |
| Achromatopsia (no color) | #555555 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #47537D
#47537D
oklch(45.1% 0.071 271.2)
- #645423
#645423
oklch(45.1% 0.07 91.3)
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 #47537D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.013
- YInMn Blue #415A77 ΔE 0.026
- Twilight #4E518B ΔE 0.027
- Dusty Grape #545775 ΔE 0.028
- Light Navy Blue #2E5A88 ΔE 0.034
- Denim Blue #3B5B92 ΔE 0.038
- Dusk Blue #26538D ΔE 0.045
- Dusky Blue #475F94 ΔE 0.045
Use #47537D 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.