#4C3F83
Closest named color: Dark Slate Blue (#483D8B). oklch(41.6% 0.11 289.5), rgb(76, 63, 131).
Aa
White text reads best on this color (8.95:1).
About this color
#4C3F83 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.110 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.017 away. White text reads best on it, at 8.95:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.34:1 |
| White text | 8.95:1 |
Values
| HEX | #4C3F83 |
| RGB | rgb(76, 63, 131) |
| HSL | hsl(251, 35%, 38%) |
| OKLCH | oklch(41.6% 0.11 289.5) |
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 #4C3F83 | 8.95:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #4C3F83 | 2.34:1 | Fails | Lc 13.6 | Not readable |
| #4C3F83 text on white | 8.95:1 | AAA | Lc 90.4 | Preferred for body text |
| #4C3F83 text on black | 2.34:1 | Fails | Lc -11.9 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D8D6F0
oklch(88.6% 0.036 289.2)
-
Step 300
300
#BFBAE8
oklch(80.8% 0.065 289.9)
-
Step 400
400
#9F96DD
oklch(70.8% 0.103 289.3)
-
Step 500
500
#887AD3
oklch(63% 0.131 289.3)
-
Step 600
600
#7361C0
oklch(55.5% 0.143 289.6)
-
Step 700
700
#6150A6
oklch(49.1% 0.133 289.7)
-
Step 800
800 (this color)
#4C3F83
oklch(41.6% 0.11 289.5)
-
Step 900
900
#41386C
oklch(37.6% 0.087 289.5)
-
Step 950
950
#26213F
oklch(26.9% 0.055 289.9)
#4C3F83 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) | #234B85 | 0.059 |
| Deuteranopia (no green cones) | #244881 | 0.057 |
| Tritanopia (no blue cones) | #3D4D5B | 0.090 |
| Achromatopsia (no color) | #494949 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C3F83
#4C3F83
oklch(41.6% 0.11 289.5)
- #505000
#505000
oklch(41.7% 0.091 109.8)
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 #4C3F83, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.017
- Blueberry #464196 ΔE 0.033
- Twilight #4E518B ΔE 0.050
- Dusk #4E5481 ΔE 0.060
- Cobalt #1E488F ΔE 0.062
- Rebecca Purple #663399 ΔE 0.064
- Dusk Blue #26538D ΔE 0.068
- Light Navy #155084 ΔE 0.073
Use #4C3F83 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.