#4B3193
Closest named color: Dark Slate Blue (#483D8B). oklch(40.3% 0.153 290), rgb(75, 49, 147).
Aa
White text reads best on this color (9.72:1).
About this color
#4B3193 is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.153 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.032 away. White text reads best on it, at 9.72:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.153) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.15:1 |
| White text | 9.72:1 |
Values
| HEX | #4B3193 |
| RGB | rgb(75, 49, 147) |
| HSL | hsl(256, 50%, 38%) |
| OKLCH | oklch(40.3% 0.153 290) |
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 #4B3193 | 9.72:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #4B3193 | 2.15:1 | Fails | Lc 11.9 | Not readable |
| #4B3193 text on white | 9.72:1 | AAA | Lc 92.0 | Preferred for body text |
| #4B3193 text on black | 2.15:1 | Fails | Lc -10.4 | 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
#E9E7FB
oklch(93.5% 0.027 290.5)
-
Step 200
200
#D8D4F8
oklch(88.4% 0.049 290.4)
-
Step 300
300
#BFB7F7
oklch(80.8% 0.09 290)
-
Step 400
400
#A08FF3
oklch(70.6% 0.144 290)
-
Step 500
500
#8B70EE
oklch(63.1% 0.182 290)
-
Step 600
600
#7654DD
oklch(55.6% 0.199 289.8)
-
Step 700
700
#6443BF
oklch(49% 0.184 290.2)
-
Step 800
800 (this color)
#4B3193
oklch(40.3% 0.153 290)
-
Step 900
900
#43327B
oklch(37.7% 0.119 290.2)
-
Step 950
950
#271E48
oklch(27% 0.075 290.3)
#4B3193 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) | #004696 | 0.085 |
| Deuteranopia (no green cones) | #004291 | 0.084 |
| Tritanopia (no blue cones) | #34495D | 0.124 |
| Achromatopsia (no color) | #444444 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B3193
#4B3193
oklch(40.3% 0.153 290)
- #4C4C00
#4C4C00
oklch(40.3% 0.088 109.8)
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 #4B3193, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.032
- Blueberry #464196 ΔE 0.037
- Rebecca Purple #663399 ΔE 0.053
- Imperial Purple #480CA8 ΔE 0.061
- Chrysanthemum #560BAD ΔE 0.064
- Indigo Blue #3A18B1 ΔE 0.072
- Sapphire #2138AB ΔE 0.072
- Cobalt #1E488F ΔE 0.077
Use #4B3193 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.