#4C3D81
Closest named color: Dark Slate Blue (#483D8B). oklch(41.1% 0.11 290.9), rgb(76, 61, 129).
Aa
White text reads best on this color (9.16:1).
About this color
#4C3D81 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.110 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.018 away. White text reads best on it, at 9.16:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.110) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.29:1 |
| White text | 9.16:1 |
Values
| HEX | #4C3D81 |
| RGB | rgb(76, 61, 129) |
| HSL | hsl(253, 36%, 37%) |
| OKLCH | oklch(41.1% 0.11 290.9) |
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 #4C3D81 | 9.16:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #4C3D81 | 2.29:1 | Fails | Lc 13.0 | Not readable |
| #4C3D81 text on white | 9.16:1 | AAA | Lc 90.9 | Preferred for body text |
| #4C3D81 text on black | 2.29:1 | Fails | Lc -11.4 | 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
#D9D6F0
oklch(88.6% 0.036 291)
-
Step 300
300
#C0BAE8
oklch(80.9% 0.065 290.9)
-
Step 400
400
#A195DC
oklch(70.7% 0.103 291.3)
-
Step 500
500
#8A79D2
oklch(63% 0.132 290.9)
-
Step 600
600
#7561C0
oklch(55.7% 0.143 290.7)
-
Step 700
700
#624FA5
oklch(49% 0.133 290.8)
-
Step 800
800 (this color)
#4C3D81
oklch(41.1% 0.11 290.9)
-
Step 900
900
#42386B
oklch(37.7% 0.085 290.7)
-
Step 950
950
#27213F
oklch(27% 0.055 291.5)
#4C3D81 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) | #214983 | 0.062 |
| Deuteranopia (no green cones) | #23467F | 0.059 |
| Tritanopia (no blue cones) | #3E4B59 | 0.090 |
| Achromatopsia (no color) | #484848 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C3D81
#4C3D81
oklch(41.1% 0.11 290.9)
- #4D4F00
#4D4F00
oklch(41.2% 0.091 111.4)
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 #4C3D81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.018
- Blueberry #464196 ΔE 0.036
- Twilight #4E518B ΔE 0.055
- Cobalt #1E488F ΔE 0.065
- Rebecca Purple #663399 ΔE 0.065
- Dusk #4E5481 ΔE 0.065
- Dusk Blue #26538D ΔE 0.072
- Light Navy #155084 ΔE 0.076
Use #4C3D81 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.