#47398A
Closest named color: Dark Slate Blue (#483D8B). oklch(40.5% 0.129 287.1), rgb(71, 57, 138).
Aa
White text reads best on this color (9.45:1).
About this color
#47398A is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.129 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.010 away. White text reads best on it, at 9.45:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.22:1 |
| White text | 9.45:1 |
Values
| HEX | #47398A |
| RGB | rgb(71, 57, 138) |
| HSL | hsl(250, 42%, 38%) |
| OKLCH | oklch(40.5% 0.129 287.1) |
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 #47398A | 9.45:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #47398A | 2.22:1 | Fails | Lc 12.4 | Not readable |
| #47398A text on white | 9.45:1 | AAA | Lc 91.6 | Preferred for body text |
| #47398A text on black | 2.22:1 | Fails | Lc -10.8 | 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
#F5F5FC
oklch(97.2% 0.009 286.2)
-
Step 100
100
#E8E8F8
oklch(93.6% 0.022 286)
-
Step 200
200
#D7D6F4
oklch(88.6% 0.041 287.1)
-
Step 300
300
#BDBAF0
oklch(81% 0.076 287.1)
-
Step 400
400
#9C94E8
oklch(70.7% 0.121 287.2)
-
Step 500
500
#8577E1
oklch(63% 0.155 287.1)
-
Step 600
600
#705ECF
oklch(55.7% 0.168 286.9)
-
Step 700
700
#5E4CB3
oklch(49% 0.157 287.2)
-
Step 800
800 (this color)
#47398A
oklch(40.5% 0.129 287.1)
-
Step 900
900
#3F3774
oklch(37.8% 0.101 286.5)
-
Step 950
950
#252044
oklch(26.9% 0.065 287.6)
#47398A 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) | #02488D | 0.073 |
| Deuteranopia (no green cones) | #014488 | 0.072 |
| Tritanopia (no blue cones) | #314B5C | 0.107 |
| Achromatopsia (no color) | #464646 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #47398A
#47398A
oklch(40.5% 0.129 287.1)
- #4F4C00
#4F4C00
oklch(40.6% 0.087 107.1)
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 #47398A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.010
- Blueberry #464196 ΔE 0.027
- Cobalt #1E488F ΔE 0.060
- Rebecca Purple #663399 ΔE 0.062
- Twilight #4E518B ΔE 0.067
- Sapphire #2138AB ΔE 0.075
- Dusk Blue #26538D ΔE 0.076
- Twilight Blue #0A437A ΔE 0.077
Use #47398A 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.