#4B3890
Closest named color: Dark Slate Blue (#483D8B). oklch(41.2% 0.139 288.7), rgb(75, 56, 144).
Aa
White text reads best on this color (9.26:1).
About this color
#4B3890 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.139 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.016 away. White text reads best on it, at 9.26:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.26:1 |
| White text | 9.26:1 |
Values
| HEX | #4B3890 |
| RGB | rgb(75, 56, 144) |
| HSL | hsl(253, 44%, 39%) |
| OKLCH | oklch(41.2% 0.139 288.7) |
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 #4B3890 | 9.26:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #4B3890 | 2.26:1 | Fails | Lc 13.0 | Not readable |
| #4B3890 text on white | 9.26:1 | AAA | Lc 91.0 | Preferred for body text |
| #4B3890 text on black | 2.26:1 | Fails | Lc -11.3 | 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
#D7D5F6
oklch(88.5% 0.045 288.2)
-
Step 300
300
#BEB9F3
oklch(81% 0.081 288.4)
-
Step 400
400
#9E92EC
oklch(70.7% 0.13 288.7)
-
Step 500
500
#8874E6
oklch(63.1% 0.166 288.8)
-
Step 600
600
#735AD4
oklch(55.6% 0.18 288.6)
-
Step 700
700
#6149B8
oklch(49.2% 0.168 288.6)
-
Step 800
800 (this color)
#4B3890
oklch(41.2% 0.139 288.7)
-
Step 900
900
#413577
oklch(37.8% 0.108 288.5)
-
Step 950
950
#261F45
oklch(26.9% 0.069 289.4)
#4B3890 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) | #004993 | 0.079 |
| Deuteranopia (no green cones) | #00458E | 0.079 |
| Tritanopia (no blue cones) | #354C5E | 0.114 |
| Achromatopsia (no color) | #474747 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B3890
#4B3890
oklch(41.2% 0.139 288.7)
- #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 #4B3890, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.016
- Blueberry #464196 ΔE 0.024
- Rebecca Purple #663399 ΔE 0.052
- Cobalt #1E488F ΔE 0.066
- Twilight #4E518B ΔE 0.068
- Sapphire #2138AB ΔE 0.074
- Imperial Purple #480CA8 ΔE 0.077
- Chrysanthemum #560BAD ΔE 0.078
Use #4B3890 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.