#4C3183
Closest named color: Dark Slate Blue (#483D8B). oklch(39.1% 0.132 294.7), rgb(76, 49, 131).
Aa
White text reads best on this color (10.12:1).
About this color
#4C3183 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.132 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.031 away. White text reads best on it, at 10.12:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.132) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.07:1 |
| White text | 10.12:1 |
Values
| HEX | #4C3183 |
| RGB | rgb(76, 49, 131) |
| HSL | hsl(260, 46%, 35%) |
| OKLCH | oklch(39.1% 0.132 294.7) |
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 #4C3183 | 10.12:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #4C3183 | 2.07:1 | Fails | Lc 10.8 | Not readable |
| #4C3183 text on white | 10.12:1 | AAA | Lc 93.1 | Preferred for body text |
| #4C3183 text on black | 2.07:1 | Fails | Lc -9.4 | 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 900.
-
Step 50
50
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#EBE7FC
oklch(93.7% 0.028 294.6)
-
Step 200
200
#DBD3FA
oklch(88.6% 0.054 294.7)
-
Step 300
300
#C4B4FA
oklch(80.8% 0.099 294.6)
-
Step 400
400
#A88AF8
oklch(70.7% 0.158 294.6)
-
Step 500
500
#9568F4
oklch(63.1% 0.201 294.8)
-
Step 600
600
#8149E3
oklch(55.6% 0.22 294.9)
-
Step 700
700
#6D39C5
oklch(49.1% 0.204 294.7)
-
Step 800
800
#5931A0
oklch(42.8% 0.169 294.7)
-
Step 900
900 (this color)
#4C3183
oklch(39.1% 0.132 294.7)
-
Step 950
950
#2A1B4A
oklch(26.9% 0.084 294.9)
#4C3183 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) | #004286 | 0.088 |
| Deuteranopia (no green cones) | #044081 | 0.087 |
| Tritanopia (no blue cones) | #3E4355 | 0.103 |
| Achromatopsia (no color) | #424242 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C3183
#4C3183
oklch(39.1% 0.132 294.7)
- #444A00
#444A00
oklch(39% 0.088 115)
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 #4C3183, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.031
- Blueberry #464196 ΔE 0.048
- Rebecca Purple #663399 ΔE 0.061
- Indigo #4B0082 ΔE 0.073
- Cobalt #1E488F ΔE 0.080
- Imperial Purple #480CA8 ΔE 0.080
- Twilight #4E518B ΔE 0.084
- Chrysanthemum #560BAD ΔE 0.084
Use #4C3183 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.