#4B2191
Closest named color: Imperial Purple (#480CA8). oklch(37.9% 0.17 293.7), rgb(75, 33, 145).
Aa
White text reads best on this color (10.90:1).
About this color
#4B2191 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.170 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Imperial Purple (#480CA8), ΔE 0.043 away. White text reads best on it, at 10.90:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.170) |
| Temperature | in between |
| Nearest name | Imperial Purple (#480CA8) |
| Black text | 1.92:1 |
| White text | 10.90:1 |
Values
| HEX | #4B2191 |
| RGB | rgb(75, 33, 145) |
| HSL | hsl(263, 63%, 35%) |
| OKLCH | oklch(37.9% 0.17 293.7) |
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 #4B2191 | 10.90:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #4B2191 | 1.92:1 | Fails | Lc 9.5 | Not readable |
| #4B2191 text on white | 10.90:1 | AAA | Lc 94.4 | Preferred for body text |
| #4B2191 text on black | 1.92:1 | Fails | Lc -8.2 | 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
#F6F4FF
oklch(97.2% 0.015 294.5)
-
Step 100
100
#EAE6FF
oklch(93.6% 0.034 293.1)
-
Step 200
200
#DAD2FF
oklch(88.5% 0.062 293.2)
-
Step 300
300
#C4B4FF
oklch(81% 0.106 293.7)
-
Step 400
400
#A788FF
oklch(70.7% 0.17 293.6)
-
Step 500
500
#9463FF
oklch(63.1% 0.221 293.5)
-
Step 600
600
#842FFF
oklch(55.6% 0.274 293.6)
-
Step 700
700
#7212E3
oklch(49.2% 0.263 293.8)
-
Step 800
800
#5C18B7
oklch(42.7% 0.218 293.7)
-
Step 900
900 (this color)
#4B2191
oklch(37.9% 0.17 293.7)
-
Step 950
950
#2B1654
oklch(27% 0.106 293.6)
#4B2191 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) | #003E94 | 0.097 |
| Deuteranopia (no green cones) | #003B8F | 0.096 |
| Tritanopia (no blue cones) | #363F58 | 0.131 |
| Achromatopsia (no color) | #3D3D3D | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B2191
#4B2191
oklch(37.9% 0.17 293.7)
- #424700
#424700
oklch(38% 0.086 114.3)
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 #4B2191, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Imperial Purple #480CA8 ΔE 0.043
- Indigo #4B0082 ΔE 0.048
- Chrysanthemum #560BAD ΔE 0.051
- Dark Slate Blue #483D8B ΔE 0.060
- Indigo Blue #3A18B1 ΔE 0.065
- Rebecca Purple #663399 ΔE 0.068
- Blueberry #464196 ΔE 0.068
- Royal Purple #4B006E ΔE 0.076
Use #4B2191 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.