#4D3A8E
Closest named color: Dark Slate Blue (#483D8B). oklch(41.6% 0.133 289.8), rgb(77, 58, 142).
Aa
White text reads best on this color (9.08:1).
About this color
#4D3A8E is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.133 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.012 away. White text reads best on it, at 9.08:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.31:1 |
| White text | 9.08:1 |
Values
| HEX | #4D3A8E |
| RGB | rgb(77, 58, 142) |
| HSL | hsl(254, 42%, 39%) |
| OKLCH | oklch(41.6% 0.133 289.8) |
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 #4D3A8E | 9.08:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #4D3A8E | 2.31:1 | Fails | Lc 13.4 | Not readable |
| #4D3A8E text on white | 9.08:1 | AAA | Lc 90.6 | Preferred for body text |
| #4D3A8E text on black | 2.31:1 | Fails | Lc -11.7 | 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
#D8D5F5
oklch(88.5% 0.044 289.8)
-
Step 300
300
#BFB9F0
oklch(80.9% 0.077 289.6)
-
Step 400
400
#9F92E9
oklch(70.6% 0.126 289.6)
-
Step 500
500
#8A75E2
oklch(63.2% 0.159 289.9)
-
Step 600
600
#755BD0
oklch(55.7% 0.173 289.8)
-
Step 700
700
#624AB4
oklch(49.1% 0.161 289.6)
-
Step 800
800 (this color)
#4D3A8E
oklch(41.6% 0.133 289.8)
-
Step 900
900
#423574
oklch(37.7% 0.104 290)
-
Step 950
950
#262044
oklch(27% 0.065 288.9)
#4D3A8E 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) | #014A91 | 0.081 |
| Deuteranopia (no green cones) | #07468C | 0.078 |
| Tritanopia (no blue cones) | #394D5E | 0.110 |
| Achromatopsia (no color) | #484848 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D3A8E
#4D3A8E
oklch(41.6% 0.133 289.8)
- #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 #4D3A8E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.012
- Blueberry #464196 ΔE 0.023
- Rebecca Purple #663399 ΔE 0.050
- Twilight #4E518B ΔE 0.062
- Cobalt #1E488F ΔE 0.067
- Dusk #4E5481 ΔE 0.078
- Dusk Blue #26538D ΔE 0.079
- Sapphire #2138AB ΔE 0.079
Use #4D3A8E 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.