#4B3B89
Closest named color: Dark Slate Blue (#483D8B). oklch(41.2% 0.125 289.2), rgb(75, 59, 137).
Aa
White text reads best on this color (9.18:1).
About this color
#4B3B89 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.125 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.007 away. White text reads best on it, at 9.18:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.28:1 |
| White text | 9.18:1 |
Values
| HEX | #4B3B89 |
| RGB | rgb(75, 59, 137) |
| HSL | hsl(252, 40%, 38%) |
| OKLCH | oklch(41.2% 0.125 289.2) |
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 #4B3B89 | 9.18:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #4B3B89 | 2.28:1 | Fails | Lc 13.1 | Not readable |
| #4B3B89 text on white | 9.18:1 | AAA | Lc 90.9 | Preferred for body text |
| #4B3B89 text on black | 2.28:1 | Fails | Lc -11.4 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F8
oklch(93.6% 0.021 288.9)
-
Step 200
200
#D8D5F3
oklch(88.5% 0.041 290.1)
-
Step 300
300
#BFB9ED
oklch(80.8% 0.073 289.9)
-
Step 400
400
#9F94E5
oklch(70.8% 0.117 289.3)
-
Step 500
500
#8877DD
oklch(63.1% 0.15 289)
-
Step 600
600
#735ECA
oklch(55.6% 0.161 289)
-
Step 700
700
#614CAF
oklch(49% 0.151 289.4)
-
Step 800
800 (this color)
#4B3B89
oklch(41.2% 0.125 289.2)
-
Step 900
900
#413771
oklch(37.8% 0.096 288.9)
-
Step 950
950
#262042
oklch(26.9% 0.062 289.7)
#4B3B89 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) | #11498C | 0.071 |
| Deuteranopia (no green cones) | #134687 | 0.070 |
| Tritanopia (no blue cones) | #394C5C | 0.103 |
| Achromatopsia (no color) | #484848 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B3B89
#4B3B89
oklch(41.2% 0.125 289.2)
- #4F4E00
#4F4E00
oklch(41.1% 0.089 108.9)
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 #4B3B89, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.007
- Blueberry #464196 ΔE 0.026
- Rebecca Purple #663399 ΔE 0.057
- Twilight #4E518B ΔE 0.060
- Cobalt #1E488F ΔE 0.063
- Dusk #4E5481 ΔE 0.073
- Dusk Blue #26538D ΔE 0.075
- Light Navy #155084 ΔE 0.080
Use #4B3B89 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.