#4C3369
Closest named color: Dark Slate Blue (#483D8B). oklch(37.6% 0.093 303.6), rgb(76, 51, 105).
Aa
White text reads best on this color (10.58:1).
About this color
#4C3369 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.093 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 0.060 away. White text reads best on it, at 10.58:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.093) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.98:1 |
| White text | 10.58:1 |
Values
| HEX | #4C3369 |
| RGB | rgb(76, 51, 105) |
| HSL | hsl(268, 35%, 31%) |
| OKLCH | oklch(37.6% 0.093 303.6) |
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 #4C3369 | 10.58:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #4C3369 | 1.98:1 | Fails | Lc 9.6 | Not readable |
| #4C3369 text on white | 10.58:1 | AAA | Lc 94.4 | Preferred for body text |
| #4C3369 text on black | 1.98:1 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#ECE7F5
oklch(93.6% 0.019 302.2)
-
Step 200
200
#DED3EF
oklch(88.4% 0.04 303.4)
-
Step 300
300
#CAB6E6
oklch(80.9% 0.07 303.8)
-
Step 400
400
#AF8FD9
oklch(70.7% 0.111 303.6)
-
Step 500
500
#9C71CF
oklch(63.1% 0.143 303.7)
-
Step 600
600
#8758BC
oklch(55.7% 0.154 303.5)
-
Step 700
700
#7347A2
oklch(49.1% 0.144 303.9)
-
Step 800
800
#5D3B83
oklch(42.7% 0.119 303.6)
-
Step 900
900 (this color)
#4C3369
oklch(37.6% 0.093 303.6)
-
Step 950
950
#2D1E3E
oklch(27% 0.06 304.3)
#4C3369 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) | #233E6B | 0.067 |
| Deuteranopia (no green cones) | #2A3F68 | 0.061 |
| Tritanopia (no blue cones) | #473D49 | 0.070 |
| Achromatopsia (no color) | #3F3F3F | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C3369
#4C3369
oklch(37.6% 0.093 303.6)
- #384900
#384900
oklch(37.7% 0.093 123.4)
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 #4C3369, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.060
- Grape Purple #5D1451 ΔE 0.077
- Blueberry #464196 ΔE 0.080
- Dark Grey Blue #29465B ΔE 0.083
- Prussian Blue #1D3557 ΔE 0.083
- Twilight Blue #0A437A ΔE 0.088
- Royal Purple #4B006E ΔE 0.090
- Onyx #343A40 ΔE 0.091
Use #4C3369 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.