#4E4289
Closest named color: Dark Slate Blue (#483D8B). oklch(42.8% 0.114 288.4), rgb(78, 66, 137).
Aa
White text reads best on this color (8.52:1).
About this color
#4E4289 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.114 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.018 away. White text reads best on it, at 8.52:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.46:1 |
| White text | 8.52:1 |
Values
| HEX | #4E4289 |
| RGB | rgb(78, 66, 137) |
| HSL | hsl(250, 35%, 40%) |
| OKLCH | oklch(42.8% 0.114 288.4) |
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 #4E4289 | 8.52:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #4E4289 | 2.46:1 | Fails | Lc 14.9 | Not readable |
| #4E4289 text on white | 8.52:1 | AAA | Lc 89.1 | Fine for body text |
| #4E4289 text on black | 2.46:1 | Fails | Lc -13.1 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D7D6F1
oklch(88.5% 0.037 287.3)
-
Step 300
300
#BEBAEA
oklch(80.8% 0.067 288.6)
-
Step 400
400
#9E96DF
oklch(70.8% 0.106 288.4)
-
Step 500
500
#877AD6
oklch(63.1% 0.136 288.4)
-
Step 600
600
#7261C3
oklch(55.6% 0.147 288.6)
-
Step 700
700
#5F50A9
oklch(49.1% 0.137 288)
-
Step 800
800 (this color)
#4E4289
oklch(42.8% 0.114 288.4)
-
Step 900
900
#40386D
oklch(37.6% 0.088 288.3)
-
Step 950
950
#262140
oklch(27% 0.057 289.5)
#4E4289 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) | #244E8C | 0.059 |
| Deuteranopia (no green cones) | #244B87 | 0.058 |
| Tritanopia (no blue cones) | #3D515F | 0.095 |
| Achromatopsia (no color) | #4C4C4C | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E4289
#4E4289
oklch(42.8% 0.114 288.4)
- #545200
#545200
oklch(42.7% 0.092 108.1)
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 #4E4289, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.018
- Blueberry #464196 ΔE 0.026
- Twilight #4E518B ΔE 0.041
- Dusk #4E5481 ΔE 0.055
- Rebecca Purple #663399 ΔE 0.060
- Cobalt #1E488F ΔE 0.061
- Dusk Blue #26538D ΔE 0.064
- Denim Blue #3B5B92 ΔE 0.070
Use #4E4289 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.