#4B3C8D
Closest named color: Dark Slate Blue (#483D8B). oklch(41.7% 0.129 288), rgb(75, 60, 141).
Aa
White text reads best on this color (9.01:1).
About this color
#4B3C8D is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.129 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.006 away. White text reads best on it, at 9.01:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.33:1 |
| White text | 9.01:1 |
Values
| HEX | #4B3C8D |
| RGB | rgb(75, 60, 141) |
| HSL | hsl(251, 40%, 39%) |
| OKLCH | oklch(41.7% 0.129 288) |
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 #4B3C8D | 9.01:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #4B3C8D | 2.33:1 | Fails | Lc 13.5 | Not readable |
| #4B3C8D text on white | 9.01:1 | AAA | Lc 90.4 | Preferred for body text |
| #4B3C8D text on black | 2.33:1 | Fails | Lc -11.9 | 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 800.
-
Step 50
50
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F8
oklch(93.6% 0.021 288.9)
-
Step 200
200
#D7D5F4
oklch(88.4% 0.042 288.5)
-
Step 300
300
#BDBAEF
oklch(80.9% 0.074 287.2)
-
Step 400
400
#9D94E7
oklch(70.7% 0.12 287.9)
-
Step 500
500
#8777E0
oklch(63.1% 0.154 288.2)
-
Step 600
600
#715DCE
oklch(55.5% 0.168 287.8)
-
Step 700
700
#5F4CB2
oklch(49.1% 0.156 287.8)
-
Step 800
800 (this color)
#4B3C8D
oklch(41.7% 0.129 288)
-
Step 900
900
#403673
oklch(37.6% 0.101 288.1)
-
Step 950
950
#252043
oklch(26.9% 0.064 287.9)
#4B3C8D 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) | #0C4B90 | 0.073 |
| Deuteranopia (no green cones) | #0D478B | 0.072 |
| Tritanopia (no blue cones) | #364E5E | 0.108 |
| Achromatopsia (no color) | #494949 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B3C8D
#4B3C8D
oklch(41.7% 0.129 288)
- #514F00
#514F00
oklch(41.6% 0.09 108.1)
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 #4B3C8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.006
- Blueberry #464196 ΔE 0.020
- Rebecca Purple #663399 ΔE 0.055
- Twilight #4E518B ΔE 0.058
- Cobalt #1E488F ΔE 0.061
- Dusk Blue #26538D ΔE 0.073
- Dusk #4E5481 ΔE 0.073
- Sapphire #2138AB ΔE 0.078
Use #4B3C8D 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.