#4C3D8E
Closest named color: Dark Slate Blue (#483D8B). oklch(42% 0.129 288.1), rgb(76, 61, 142).
Aa
White text reads best on this color (8.87:1).
About this color
#4C3D8E is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.129 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.008 away. White text reads best on it, at 8.87:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.36:1 |
| White text | 8.87:1 |
Values
| HEX | #4C3D8E |
| RGB | rgb(76, 61, 142) |
| HSL | hsl(251, 40%, 40%) |
| OKLCH | oklch(42% 0.129 288.1) |
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 #4C3D8E | 8.87:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #4C3D8E | 2.36:1 | Fails | Lc 13.9 | Not readable |
| #4C3D8E text on white | 8.87:1 | AAA | Lc 90.1 | Preferred for body text |
| #4C3D8E text on black | 2.36:1 | Fails | Lc -12.2 | 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 800.
-
Step 50
50
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F8
oklch(93.6% 0.021 288.9)
-
Step 200
200
#D7D5F4
oklch(88.4% 0.042 288.5)
-
Step 300
300
#BEB9EF
oklch(80.8% 0.076 288.8)
-
Step 400
400
#9D94E7
oklch(70.7% 0.12 287.9)
-
Step 500
500
#8777E0
oklch(63.1% 0.154 288.2)
-
Step 600
600
#725DCE
oklch(55.6% 0.168 288.2)
-
Step 700
700
#5F4CB2
oklch(49.1% 0.156 287.8)
-
Step 800
800 (this color)
#4C3D8E
oklch(42% 0.129 288.1)
-
Step 900
900
#403673
oklch(37.6% 0.101 288.1)
-
Step 950
950
#252043
oklch(26.9% 0.064 287.9)
#4C3D8E 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) | #0F4C91 | 0.072 |
| Deuteranopia (no green cones) | #10488C | 0.071 |
| Tritanopia (no blue cones) | #374F5F | 0.108 |
| Achromatopsia (no color) | #4A4A4A | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C3D8E
#4C3D8E
oklch(42% 0.129 288.1)
- #525000
#525000
oklch(41.9% 0.09 108.1)
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 #4C3D8E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.008
- Blueberry #464196 ΔE 0.018
- Rebecca Purple #663399 ΔE 0.053
- Twilight #4E518B ΔE 0.055
- Cobalt #1E488F ΔE 0.062
- Dusk #4E5481 ΔE 0.071
- Dusk Blue #26538D ΔE 0.072
- Sapphire #2138AB ΔE 0.079
Use #4C3D8E 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.