#4E3994
Closest named color: Dark Slate Blue (#483D8B). oklch(42% 0.143 289.4), rgb(78, 57, 148).
Aa
White text reads best on this color (8.98:1).
About this color
#4E3994 is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.143 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.020 away. White text reads best on it, at 8.98:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.33:1 |
| White text | 8.98:1 |
Values
| HEX | #4E3994 |
| RGB | rgb(78, 57, 148) |
| HSL | hsl(254, 44%, 40%) |
| OKLCH | oklch(42% 0.143 289.4) |
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 #4E3994 | 8.98:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #4E3994 | 2.33:1 | Fails | Lc 13.7 | Not readable |
| #4E3994 text on white | 8.98:1 | AAA | Lc 90.3 | Preferred for body text |
| #4E3994 text on black | 2.33:1 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E8F9
oklch(93.7% 0.023 288.7)
-
Step 200
200
#D8D5F7
oklch(88.6% 0.047 289.5)
-
Step 300
300
#BFB8F4
oklch(80.9% 0.084 289.7)
-
Step 400
400
#9F91EE
oklch(70.7% 0.134 289.4)
-
Step 500
500
#8973E8
oklch(63.1% 0.17 289.2)
-
Step 600
600
#7558D6
oklch(55.6% 0.185 289.6)
-
Step 700
700
#6247BA
oklch(49.1% 0.173 289.3)
-
Step 800
800 (this color)
#4E3994
oklch(42% 0.143 289.4)
-
Step 900
900
#423478
oklch(37.8% 0.112 289.4)
-
Step 950
950
#261F46
oklch(27% 0.07 289.1)
#4E3994 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) | #004B97 | 0.083 |
| Deuteranopia (no green cones) | #004792 | 0.082 |
| Tritanopia (no blue cones) | #384E61 | 0.117 |
| Achromatopsia (no color) | #494949 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E3994
#4E3994
oklch(42% 0.143 289.4)
- #515000
#515000
oklch(41.8% 0.091 108.9)
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 #4E3994, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.020
- Blueberry #464196 ΔE 0.022
- Rebecca Purple #663399 ΔE 0.046
- Twilight #4E518B ΔE 0.066
- Cobalt #1E488F ΔE 0.070
- Sapphire #2138AB ΔE 0.075
- Chrysanthemum #560BAD ΔE 0.075
- Imperial Purple #480CA8 ΔE 0.077
Use #4E3994 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.