#4B3279
Closest named color: Dark Slate Blue (#483D8B). oklch(38.4% 0.117 296.8), rgb(75, 50, 121).
Aa
White text reads best on this color (10.33:1).
About this color
#4B3279 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.117 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.039 away. White text reads best on it, at 10.33:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.03:1 |
| White text | 10.33:1 |
Values
| HEX | #4B3279 |
| RGB | rgb(75, 50, 121) |
| HSL | hsl(261, 42%, 34%) |
| OKLCH | oklch(38.4% 0.117 296.8) |
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 #4B3279 | 10.33:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #4B3279 | 2.03:1 | Fails | Lc 10.2 | Not readable |
| #4B3279 text on white | 10.33:1 | AAA | Lc 93.7 | Preferred for body text |
| #4B3279 text on black | 2.03:1 | Fails | Lc -8.8 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EBE7F9
oklch(93.6% 0.024 296.1)
-
Step 200
200
#DCD3F6
oklch(88.5% 0.049 297.2)
-
Step 300
300
#C6B5F3
oklch(80.9% 0.088 297)
-
Step 400
400
#AA8CED
oklch(70.7% 0.141 296.9)
-
Step 500
500
#966CE7
oklch(63% 0.18 296.7)
-
Step 600
600
#8250D5
oklch(55.6% 0.195 296.9)
-
Step 700
700
#6E40B8
oklch(49.1% 0.18 296.8)
-
Step 800
800
#593695
oklch(42.7% 0.149 296.5)
-
Step 900
900 (this color)
#4B3279
oklch(38.4% 0.117 296.8)
-
Step 950
950
#2B1D46
oklch(27.1% 0.074 296.9)
#4B3279 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) | #10417B | 0.081 |
| Deuteranopia (no green cones) | #193F77 | 0.075 |
| Tritanopia (no blue cones) | #404150 | 0.092 |
| Achromatopsia (no color) | #404040 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B3279
#4B3279
oklch(38.4% 0.117 296.8)
- #414900
#414900
oklch(38.5% 0.088 116.7)
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 #4B3279, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.039
- Blueberry #464196 ΔE 0.058
- Rebecca Purple #663399 ΔE 0.073
- Indigo #4B0082 ΔE 0.078
- Cobalt #1E488F ΔE 0.083
- Twilight Blue #0A437A ΔE 0.085
- Royal Purple #4B006E ΔE 0.085
- Twilight #4E518B ΔE 0.085
Use #4B3279 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.