#4B1D66
Closest named color: Royal Purple (#4B006E). oklch(33.7% 0.125 310.3), rgb(75, 29, 102).
Aa
White text reads best on this color (12.59:1).
About this color
#4B1D66 is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.125 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.041 away. White text reads best on it, at 12.59:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.125) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.66:1 |
| White text | 12.59:1 |
Values
| HEX | #4B1D66 |
| RGB | rgb(75, 29, 102) |
| HSL | hsl(278, 56%, 26%) |
| OKLCH | oklch(33.7% 0.125 310.3) |
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 #4B1D66 | 12.59:1 | AAA | Lc -101.4 | Preferred for body text |
| Black text on #4B1D66 | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #4B1D66 text on white | 12.59:1 | AAA | Lc 98.0 | Preferred for body text |
| #4B1D66 text on black | 1.66:1 | Fails | Lc 0.0 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#EFE5F8
oklch(93.5% 0.027 309.2)
-
Step 200
200
#E4D0F3
oklch(88.5% 0.052 310.8)
-
Step 300
300
#D4B0EE
oklch(81% 0.094 310.7)
-
Step 400
400
#BE83E6
oklch(70.7% 0.152 310.5)
-
Step 500
500
#AD60DE
oklch(63.1% 0.192 310.2)
-
Step 600
600
#9941CC
oklch(55.6% 0.21 310.3)
-
Step 700
700
#8232B0
oklch(49.1% 0.194 310.1)
-
Step 800
800
#6A2B8F
oklch(42.8% 0.161 310.2)
-
Step 900
900 (this color)
#4B1D66
oklch(33.7% 0.125 310.3)
-
Step 950
950
#321943
oklch(27% 0.079 309.6)
#4B1D66 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) | #003168 | 0.110 |
| Deuteranopia (no green cones) | #123464 | 0.101 |
| Tritanopia (no blue cones) | #472C3F | 0.085 |
| Achromatopsia (no color) | #333333 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B1D66
#4B1D66
oklch(33.7% 0.125 310.3)
- #274000
#274000
oklch(33.8% 0.091 130.1)
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 #4B1D66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.041
- Plum Purple #4E0550 ΔE 0.052
- Grape Purple #5D1451 ΔE 0.055
- Indigo #4B0082 ΔE 0.058
- Deep Violet #490648 ΔE 0.063
- Eggplant Purple #430541 ΔE 0.078
- Rich Purple #720058 ΔE 0.090
- Dark Slate Blue #483D8B ΔE 0.093
Use #4B1D66 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.