#3D3584
Closest named color: Dark Slate Blue (#483D8B). oklch(38.4% 0.128 283.2), rgb(61, 53, 132).
Aa
White text reads best on this color (10.28:1).
About this color
#3D3584 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.128 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.031 away. White text reads best on it, at 10.28:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.04:1 |
| White text | 10.28:1 |
Values
| HEX | #3D3584 |
| RGB | rgb(61, 53, 132) |
| HSL | hsl(246, 43%, 36%) |
| OKLCH | oklch(38.4% 0.128 283.2) |
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 #3D3584 | 10.28:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #3D3584 | 2.04:1 | Fails | Lc 10.4 | Not readable |
| #3D3584 text on white | 10.28:1 | AAA | Lc 93.6 | Preferred for body text |
| #3D3584 text on black | 2.04:1 | Fails | Lc -8.9 | 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
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E7E8FC
oklch(93.6% 0.027 283.6)
-
Step 200
200
#D4D5FC
oklch(88.5% 0.053 284.1)
-
Step 300
300
#B8B9FD
oklch(80.9% 0.096 283.4)
-
Step 400
400
#9591FC
oklch(70.6% 0.154 283.4)
-
Step 500
500
#7E72FA
oklch(63.2% 0.196 283.2)
-
Step 600
600
#6955E9
oklch(55.6% 0.214 283.1)
-
Step 700
700
#5844CA
oklch(49% 0.198 283.1)
-
Step 800
800
#4839A4
oklch(42.7% 0.165 283.3)
-
Step 900
900 (this color)
#3D3584
oklch(38.4% 0.128 283.2)
-
Step 950
950
#221F4C
oklch(27% 0.081 282.6)
#3D3584 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) | #004387 | 0.062 |
| Deuteranopia (no green cones) | #003E82 | 0.061 |
| Tritanopia (no blue cones) | #204757 | 0.108 |
| Achromatopsia (no color) | #404040 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D3584
#3D3584
oklch(38.4% 0.128 283.2)
- #4C4500
#4C4500
oklch(38.5% 0.081 102.9)
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 #3D3584, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.031
- Blueberry #464196 ΔE 0.045
- Cobalt #1E488F ΔE 0.059
- Twilight Blue #0A437A ΔE 0.065
- Sapphire #2138AB ΔE 0.074
- Marine Blue #01386A ΔE 0.080
- Light Navy #155084 ΔE 0.080
- Rebecca Purple #663399 ΔE 0.082
Use #3D3584 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.