#4D3D78
Closest named color: Dark Slate Blue (#483D8B). oklch(40.6% 0.097 294.2), rgb(77, 61, 120).
Aa
White text reads best on this color (9.31:1).
About this color
#4D3D78 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.097 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.033 away. White text reads best on it, at 9.31:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.25:1 |
| White text | 9.31:1 |
Values
| HEX | #4D3D78 |
| RGB | rgb(77, 61, 120) |
| HSL | hsl(256, 33%, 35%) |
| OKLCH | oklch(40.6% 0.097 294.2) |
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 #4D3D78 | 9.31:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #4D3D78 | 2.25:1 | Fails | Lc 12.6 | Not readable |
| #4D3D78 text on white | 9.31:1 | AAA | Lc 91.4 | Preferred for body text |
| #4D3D78 text on black | 2.25:1 | Fails | Lc -11.0 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#EAE8F4
oklch(93.6% 0.016 293.7)
-
Step 200
200
#DAD6EC
oklch(88.6% 0.03 294.1)
-
Step 300
300
#C2BAE2
oklch(80.9% 0.056 294.3)
-
Step 400
400
#A496D4
oklch(70.8% 0.09 294.3)
-
Step 500
500
#8E7BC8
oklch(63.2% 0.115 294.2)
-
Step 600
600
#7862B5
oklch(55.5% 0.127 294.1)
-
Step 700
700
#65519C
oklch(49% 0.118 293.9)
-
Step 800
800 (this color)
#4D3D78
oklch(40.6% 0.097 294.2)
-
Step 900
900
#443966
oklch(37.8% 0.076 293.7)
-
Step 950
950
#28213B
oklch(26.9% 0.048 295.4)
#4D3D78 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) | #29477A | 0.056 |
| Deuteranopia (no green cones) | #2B4677 | 0.054 |
| Tritanopia (no blue cones) | #434854 | 0.079 |
| Achromatopsia (no color) | #474747 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D3D78
#4D3D78
oklch(40.6% 0.097 294.2)
- #494E00
#494E00
oklch(40.5% 0.091 113.9)
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 #4D3D78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.033
- Blueberry #464196 ΔE 0.051
- Twilight #4E518B ΔE 0.059
- Dusk #4E5481 ΔE 0.064
- Cobalt #1E488F ΔE 0.072
- Rebecca Purple #663399 ΔE 0.075
- Dusk Blue #26538D ΔE 0.077
- Twilight Blue #0A437A ΔE 0.078
Use #4D3D78 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.