#4D3582
Closest named color: Dark Slate Blue (#483D8B). oklch(39.8% 0.124 294.4), rgb(77, 53, 130).
Aa
White text reads best on this color (9.78:1).
About this color
#4D3582 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.124 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 0.024 away. White text reads best on it, at 9.78:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.124) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.14:1 |
| White text | 9.78:1 |
Values
| HEX | #4D3582 |
| RGB | rgb(77, 53, 130) |
| HSL | hsl(259, 42%, 36%) |
| OKLCH | oklch(39.8% 0.124 294.4) |
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 #4D3582 | 9.78:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #4D3582 | 2.14:1 | Fails | Lc 11.6 | Not readable |
| #4D3582 text on white | 9.78:1 | AAA | Lc 92.4 | Preferred for body text |
| #4D3582 text on black | 2.14:1 | Fails | Lc -10.0 | 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 900.
-
Step 50
50
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EAE7FB
oklch(93.6% 0.027 292.8)
-
Step 200
200
#DBD3F9
oklch(88.5% 0.052 295)
-
Step 300
300
#C4B5F7
oklch(80.9% 0.093 294.7)
-
Step 400
400
#A78CF3
oklch(70.7% 0.148 294.4)
-
Step 500
500
#936BEF
oklch(63.1% 0.191 294.2)
-
Step 600
600
#7F4EDD
oklch(55.6% 0.207 294.4)
-
Step 700
700
#6C3DC0
oklch(49.1% 0.193 294.7)
-
Step 800
800
#57349B
oklch(42.6% 0.159 294.3)
-
Step 900
900 (this color)
#4D3582
oklch(39.8% 0.124 294.4)
-
Step 950
950
#2A1C48
oklch(26.9% 0.079 295.3)
#4D3582 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) | #0A4485 | 0.082 |
| Deuteranopia (no green cones) | #144380 | 0.078 |
| Tritanopia (no blue cones) | #404556 | 0.098 |
| Achromatopsia (no color) | #444444 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D3582
#4D3582
oklch(39.8% 0.124 294.4)
- #474C00
#474C00
oklch(39.8% 0.09 114)
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 #4D3582, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.024
- Blueberry #464196 ΔE 0.043
- Rebecca Purple #663399 ΔE 0.060
- Twilight #4E518B ΔE 0.074
- Cobalt #1E488F ΔE 0.076
- Indigo #4B0082 ΔE 0.083
- Dusk #4E5481 ΔE 0.085
- Twilight Blue #0A437A ΔE 0.086
Use #4D3582 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.