#47437B
Closest named color: Dark Slate Blue (#483D8B). oklch(41.4% 0.092 284.9), rgb(71, 67, 123).
Aa
White text reads best on this color (8.91:1).
About this color
#47437B is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.092 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.033 away. White text reads best on it, at 8.91:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.35:1 |
| White text | 8.91:1 |
Values
| HEX | #47437B |
| RGB | rgb(71, 67, 123) |
| HSL | hsl(244, 29%, 37%) |
| OKLCH | oklch(41.4% 0.092 284.9) |
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 #47437B | 8.91:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #47437B | 2.35:1 | Fails | Lc 13.7 | Not readable |
| #47437B text on white | 8.91:1 | AAA | Lc 90.3 | Preferred for body text |
| #47437B text on black | 2.35:1 | Fails | Lc -12.0 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E8E9F4
oklch(93.6% 0.015 281.9)
-
Step 200
200
#D6D7ED
oklch(88.5% 0.03 283.7)
-
Step 300
300
#BCBCE3
oklch(80.8% 0.055 285.1)
-
Step 400
400
#9B99D4
oklch(70.7% 0.086 285.5)
-
Step 500
500
#837FC9
oklch(63.1% 0.11 285.3)
-
Step 600
600
#6D68B6
oklch(55.7% 0.119 284.8)
-
Step 700
700
#5B569C
oklch(49.1% 0.11 284.8)
-
Step 800
800 (this color)
#47437B
oklch(41.4% 0.092 284.9)
-
Step 900
900
#3E3C66
oklch(37.8% 0.071 284.6)
-
Step 950
950
#24233C
oklch(27% 0.046 284.7)
#47437B 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) | #2F4B7D | 0.037 |
| Deuteranopia (no green cones) | #2D487A | 0.038 |
| Tritanopia (no blue cones) | #384E59 | 0.078 |
| Achromatopsia (no color) | #4A4A4A | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #47437B
#47437B
oklch(41.4% 0.092 284.9)
- #534E00
#534E00
oklch(41.5% 0.088 105.4)
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 #47437B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.033
- Blueberry #464196 ΔE 0.046
- Twilight #4E518B ΔE 0.046
- Dusk #4E5481 ΔE 0.051
- Cobalt #1E488F ΔE 0.058
- Dusk Blue #26538D ΔE 0.059
- Light Navy #155084 ΔE 0.061
- Twilight Blue #0A437A ΔE 0.067
Use #47437B 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.