#4E408B
Closest named color: Dark Slate Blue (#483D8B). oklch(42.6% 0.12 288.8), rgb(78, 64, 139).
Aa
White text reads best on this color (8.64:1).
About this color
#4E408B is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.120 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.014 away. White text reads best on it, at 8.64:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.43:1 |
| White text | 8.64:1 |
Values
| HEX | #4E408B |
| RGB | rgb(78, 64, 139) |
| HSL | hsl(251, 37%, 40%) |
| OKLCH | oklch(42.6% 0.12 288.8) |
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 #4E408B | 8.64:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #4E408B | 2.43:1 | Fails | Lc 14.5 | Not readable |
| #4E408B text on white | 8.64:1 | AAA | Lc 89.4 | Fine for body text |
| #4E408B text on black | 2.43:1 | Fails | Lc -12.8 | 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
#E9E8F7
oklch(93.6% 0.02 289.1)
-
Step 200
200
#D8D6F2
oklch(88.6% 0.038 288.9)
-
Step 300
300
#BEBAEC
oklch(80.9% 0.07 288.4)
-
Step 400
400
#9E95E2
oklch(70.8% 0.111 288.6)
-
Step 500
500
#8878DA
oklch(63.1% 0.144 289.1)
-
Step 600
600
#735FC7
oklch(55.6% 0.156 289.2)
-
Step 700
700
#604EAC
oklch(49.1% 0.144 288.7)
-
Step 800
800 (this color)
#4E408B
oklch(42.6% 0.12 288.8)
-
Step 900
900
#41376F
oklch(37.6% 0.093 289.3)
-
Step 950
950
#262141
oklch(27.1% 0.058 289.1)
#4E408B 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) | #1E4D8E | 0.065 |
| Deuteranopia (no green cones) | #1E4A89 | 0.064 |
| Tritanopia (no blue cones) | #3C505F | 0.100 |
| Achromatopsia (no color) | #4C4C4C | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E408B
#4E408B
oklch(42.6% 0.12 288.8)
- #535200
#535200
oklch(42.6% 0.092 108.9)
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 #4E408B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.014
- Blueberry #464196 ΔE 0.022
- Twilight #4E518B ΔE 0.046
- Rebecca Purple #663399 ΔE 0.055
- Dusk #4E5481 ΔE 0.061
- Cobalt #1E488F ΔE 0.062
- Dusk Blue #26538D ΔE 0.067
- Denim Blue #3B5B92 ΔE 0.075
Use #4E408B 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.