#47378D
Closest named color: Dark Slate Blue (#483D8B). oklch(40.4% 0.137 287.2), rgb(71, 55, 141).
Aa
White text reads best on this color (9.54:1).
About this color
#47378D is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.137 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.016 away. White text reads best on it, at 9.54:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.19:1 |
| White text | 9.54:1 |
Values
| HEX | #47378D |
| RGB | rgb(71, 55, 141) |
| HSL | hsl(251, 44%, 38%) |
| OKLCH | oklch(40.4% 0.137 287.2) |
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 #47378D | 9.54:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #47378D | 2.19:1 | Fails | Lc 12.2 | Not readable |
| #47378D text on white | 9.54:1 | AAA | Lc 91.8 | Preferred for body text |
| #47378D text on black | 2.19:1 | Fails | Lc -10.6 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E8E8F9
oklch(93.6% 0.023 286)
-
Step 200
200
#D7D5F6
oklch(88.5% 0.045 288.2)
-
Step 300
300
#BDB9F2
oklch(80.9% 0.08 287.7)
-
Step 400
400
#9C93EC
oklch(70.7% 0.128 287.3)
-
Step 500
500
#8576E6
oklch(63.2% 0.163 286.9)
-
Step 600
600
#705BD4
oklch(55.5% 0.179 287)
-
Step 700
700
#5E4AB7
oklch(49% 0.165 287.1)
-
Step 800
800 (this color)
#47378D
oklch(40.4% 0.137 287.2)
-
Step 900
900
#3F3676
oklch(37.7% 0.106 286.6)
-
Step 950
950
#252045
oklch(27% 0.067 287.2)
#47378D 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) | #004790 | 0.074 |
| Deuteranopia (no green cones) | #00438B | 0.074 |
| Tritanopia (no blue cones) | #2F4B5C | 0.114 |
| Achromatopsia (no color) | #454545 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #47378D
#47378D
oklch(40.4% 0.137 287.2)
- #4E4B00
#4E4B00
oklch(40.3% 0.086 107.1)
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 #47378D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.016
- Blueberry #464196 ΔE 0.028
- Rebecca Purple #663399 ΔE 0.060
- Cobalt #1E488F ΔE 0.063
- Sapphire #2138AB ΔE 0.072
- Twilight #4E518B ΔE 0.072
- Imperial Purple #480CA8 ΔE 0.076
- Dusk Blue #26538D ΔE 0.081
Use #47378D 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.