#4A3166
Closest named color: Dark Slate Blue (#483D8B). oklch(36.8% 0.092 304), rgb(74, 49, 102).
Aa
White text reads best on this color (10.92:1).
About this color
#4A3166 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.092 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.066 away. White text reads best on it, at 10.92:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.092) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.92:1 |
| White text | 10.92:1 |
Values
| HEX | #4A3166 |
| RGB | rgb(74, 49, 102) |
| HSL | hsl(268, 35%, 30%) |
| OKLCH | oklch(36.8% 0.092 304) |
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 #4A3166 | 10.92:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #4A3166 | 1.92:1 | Fails | Lc 8.8 | Not readable |
| #4A3166 text on white | 10.92:1 | AAA | Lc 95.1 | Preferred for body text |
| #4A3166 text on black | 1.92:1 | Fails | Lc -7.5 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#ECE7F5
oklch(93.6% 0.019 302.2)
-
Step 200
200
#DED3EE
oklch(88.4% 0.038 304)
-
Step 300
300
#CAB6E5
oklch(80.9% 0.069 304.3)
-
Step 400
400
#AF8FD8
oklch(70.6% 0.109 303.9)
-
Step 500
500
#9C71CE
oklch(63% 0.141 304)
-
Step 600
600
#8758BB
oklch(55.6% 0.153 303.8)
-
Step 700
700
#7347A1
oklch(49.1% 0.143 304.2)
-
Step 800
800
#5D3B82
oklch(42.6% 0.117 304)
-
Step 900
900 (this color)
#4A3166
oklch(36.8% 0.092 304)
-
Step 950
950
#2D1E3D
oklch(26.9% 0.059 305.1)
#4A3166 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) | #213C68 | 0.067 |
| Deuteranopia (no green cones) | #283D65 | 0.061 |
| Tritanopia (no blue cones) | #453A46 | 0.069 |
| Achromatopsia (no color) | #3D3D3D | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A3166
#4A3166
oklch(36.8% 0.092 304)
- #354700
#354700
oklch(36.9% 0.092 124.4)
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 #4A3166, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.066
- Grape Purple #5D1451 ΔE 0.073
- Prussian Blue #1D3557 ΔE 0.078
- Dark Grey Blue #29465B ΔE 0.083
- Blueberry #464196 ΔE 0.086
- Royal Purple #4B006E ΔE 0.086
- Space Cadet #2B2D42 ΔE 0.087
- Onyx #343A40 ΔE 0.088
Use #4A3166 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.