#4C3397
Closest named color: Dark Slate Blue (#483D8B). oklch(41% 0.155 289.2), rgb(76, 51, 151).
Aa
White text reads best on this color (9.42:1).
About this color
#4C3397 is a dark, vivid purple. In OKLCH its lightness is 41%, its chroma 0.155 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.032 away. White text reads best on it, at 9.42:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.22:1 |
| White text | 9.42:1 |
Values
| HEX | #4C3397 |
| RGB | rgb(76, 51, 151) |
| HSL | hsl(255, 50%, 40%) |
| OKLCH | oklch(41% 0.155 289.2) |
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 #4C3397 | 9.42:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #4C3397 | 2.22:1 | Fails | Lc 12.7 | Not readable |
| #4C3397 text on white | 9.42:1 | AAA | Lc 91.3 | Preferred for body text |
| #4C3397 text on black | 2.22:1 | Fails | Lc -11.1 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7FB
oklch(93.5% 0.027 290.5)
-
Step 200
200
#D7D4F9
oklch(88.4% 0.051 289)
-
Step 300
300
#BEB7F8
oklch(80.8% 0.091 289.1)
-
Step 400
400
#9F8FF4
oklch(70.6% 0.145 289.4)
-
Step 500
500
#8A70F0
oklch(63.2% 0.185 289.4)
-
Step 600
600
#7554DF
oklch(55.7% 0.202 289.1)
-
Step 700
700
#6343C1
oklch(49.1% 0.187 289.4)
-
Step 800
800 (this color)
#4C3397
oklch(41% 0.155 289.2)
-
Step 900
900
#42327C
oklch(37.7% 0.12 289.3)
-
Step 950
950
#261E49
oklch(27% 0.077 288.7)
#4C3397 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) | #00489A | 0.084 |
| Deuteranopia (no green cones) | #004495 | 0.083 |
| Tritanopia (no blue cones) | #334B60 | 0.126 |
| Achromatopsia (no color) | #464646 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C3397
#4C3397
oklch(41% 0.155 289.2)
- #4E4E00
#4E4E00
oklch(41% 0.089 109.8)
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 #4C3397, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.032
- Blueberry #464196 ΔE 0.033
- Rebecca Purple #663399 ΔE 0.049
- Imperial Purple #480CA8 ΔE 0.061
- Chrysanthemum #560BAD ΔE 0.062
- Sapphire #2138AB ΔE 0.069
- Indigo Blue #3A18B1 ΔE 0.071
- Cobalt #1E488F ΔE 0.076
Use #4C3397 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.