#4E3189
Closest named color: Dark Slate Blue (#483D8B). oklch(39.8% 0.14 294.3), rgb(78, 49, 137).
Aa
White text reads best on this color (9.88:1).
About this color
#4E3189 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.140 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.029 away. White text reads best on it, at 9.88:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.140) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.12:1 |
| White text | 9.88:1 |
Values
| HEX | #4E3189 |
| RGB | rgb(78, 49, 137) |
| HSL | hsl(260, 47%, 36%) |
| OKLCH | oklch(39.8% 0.14 294.3) |
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 #4E3189 | 9.88:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #4E3189 | 2.12:1 | Fails | Lc 11.4 | Not readable |
| #4E3189 text on white | 9.88:1 | AAA | Lc 92.5 | Preferred for body text |
| #4E3189 text on black | 2.12:1 | Fails | Lc -9.9 | 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 900.
-
Step 50
50
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#EBE6FD
oklch(93.6% 0.031 295.8)
-
Step 200
200
#DBD2FD
oklch(88.5% 0.059 294.8)
-
Step 300
300
#C4B3FE
oklch(80.8% 0.106 294.3)
-
Step 400
400
#A888FD
oklch(70.6% 0.168 294.3)
-
Step 500
500
#9564FB
oklch(63% 0.215 294.4)
-
Step 600
600
#8144EA
oklch(55.5% 0.233 294.3)
-
Step 700
700
#6E34CC
oklch(49.2% 0.217 294.3)
-
Step 800
800
#592DA5
oklch(42.7% 0.18 294.2)
-
Step 900
900 (this color)
#4E3189
oklch(39.8% 0.14 294.3)
-
Step 950
950
#2A1A4C
oklch(26.9% 0.089 294.4)
#4E3189 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) | #00448C | 0.091 |
| Deuteranopia (no green cones) | #004287 | 0.091 |
| Tritanopia (no blue cones) | #3E4558 | 0.111 |
| Achromatopsia (no color) | #434343 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E3189
#4E3189
oklch(39.8% 0.14 294.3)
- #474C00
#474C00
oklch(39.8% 0.09 114)
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 #4E3189, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.029
- Blueberry #464196 ΔE 0.043
- Rebecca Purple #663399 ΔE 0.053
- Imperial Purple #480CA8 ΔE 0.074
- Indigo #4B0082 ΔE 0.074
- Chrysanthemum #560BAD ΔE 0.075
- Cobalt #1E488F ΔE 0.081
- Twilight #4E518B ΔE 0.083
Use #4E3189 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.