#4C3D78
Closest named color: Dark Slate Blue (#483D8B). oklch(40.5% 0.097 293.3), rgb(76, 61, 120).
Aa
White text reads best on this color (9.34:1).
About this color
#4C3D78 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.097 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.033 away. White text reads best on it, at 9.34:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.24:1 |
| White text | 9.34:1 |
Values
| HEX | #4C3D78 |
| RGB | rgb(76, 61, 120) |
| HSL | hsl(255, 33%, 35%) |
| OKLCH | oklch(40.5% 0.097 293.3) |
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 #4C3D78 | 9.34:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #4C3D78 | 2.24:1 | Fails | Lc 12.5 | Not readable |
| #4C3D78 text on white | 9.34:1 | AAA | Lc 91.5 | Preferred for body text |
| #4C3D78 text on black | 2.24:1 | Fails | Lc -10.9 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#EAE8F4
oklch(93.6% 0.016 293.7)
-
Step 200
200
#D9D6ED
oklch(88.5% 0.031 291.7)
-
Step 300
300
#C2BAE3
oklch(80.9% 0.058 294)
-
Step 400
400
#A396D4
oklch(70.7% 0.09 293.6)
-
Step 500
500
#8D7BC9
oklch(63.1% 0.116 293.4)
-
Step 600
600
#7763B5
oklch(55.6% 0.125 293.1)
-
Step 700
700
#64519C
oklch(48.9% 0.117 293.2)
-
Step 800
800 (this color)
#4C3D78
oklch(40.5% 0.097 293.3)
-
Step 900
900
#443966
oklch(37.8% 0.076 293.7)
-
Step 950
950
#27223C
oklch(27.1% 0.048 291.7)
#4C3D78 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) | #28477A | 0.055 |
| Deuteranopia (no green cones) | #2B4677 | 0.052 |
| Tritanopia (no blue cones) | #414854 | 0.079 |
| Achromatopsia (no color) | #474747 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C3D78
#4C3D78
oklch(40.5% 0.097 293.3)
- #494E00
#494E00
oklch(40.5% 0.091 113.9)
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 #4C3D78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.033
- Blueberry #464196 ΔE 0.050
- Twilight #4E518B ΔE 0.059
- Dusk #4E5481 ΔE 0.065
- Cobalt #1E488F ΔE 0.070
- Dusk Blue #26538D ΔE 0.076
- Rebecca Purple #663399 ΔE 0.076
- Twilight Blue #0A437A ΔE 0.076
Use #4C3D78 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.