#4D3B8A
Closest named color: Dark Slate Blue (#483D8B). oklch(41.5% 0.126 290.3), rgb(77, 59, 138).
Aa
White text reads best on this color (9.09:1).
About this color
#4D3B8A is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.126 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.009 away. White text reads best on it, at 9.09:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.30:1 |
| White text | 9.09:1 |
Values
| HEX | #4D3B8A |
| RGB | rgb(77, 59, 138) |
| HSL | hsl(254, 40%, 39%) |
| OKLCH | oklch(41.5% 0.126 290.3) |
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 #4D3B8A | 9.09:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #4D3B8A | 2.30:1 | Fails | Lc 13.3 | Not readable |
| #4D3B8A text on white | 9.09:1 | AAA | Lc 90.7 | Preferred for body text |
| #4D3B8A text on black | 2.30:1 | Fails | Lc -11.6 | 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
#D8D5F3
oklch(88.5% 0.041 290.1)
-
Step 300
300
#C0B9EE
oklch(81% 0.074 290.7)
-
Step 400
400
#A093E5
oklch(70.7% 0.118 290.3)
-
Step 500
500
#8A76DD
oklch(63% 0.151 290.3)
-
Step 600
600
#755DCB
oklch(55.7% 0.164 290.1)
-
Step 700
700
#634CAF
oklch(49.2% 0.151 290.4)
-
Step 800
800 (this color)
#4D3B8A
oklch(41.5% 0.126 290.3)
-
Step 900
900
#423671
oklch(37.7% 0.098 290.3)
-
Step 950
950
#272042
oklch(27% 0.062 291.2)
#4D3B8A 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) | #104A8D | 0.075 |
| Deuteranopia (no green cones) | #144788 | 0.073 |
| Tritanopia (no blue cones) | #3B4C5C | 0.104 |
| Achromatopsia (no color) | #484848 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D3B8A
#4D3B8A
oklch(41.5% 0.126 290.3)
- #4F4F00
#4F4F00
oklch(41.4% 0.09 109.8)
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 #4D3B8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.009
- Blueberry #464196 ΔE 0.025
- Rebecca Purple #663399 ΔE 0.054
- Twilight #4E518B ΔE 0.059
- Cobalt #1E488F ΔE 0.066
- Dusk #4E5481 ΔE 0.073
- Dusk Blue #26538D ΔE 0.076
- Light Navy #155084 ΔE 0.083
Use #4D3B8A 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.