#3D3280
Closest named color: Dark Slate Blue (#483D8B). oklch(37.5% 0.126 285), rgb(61, 50, 128).
Aa
White text reads best on this color (10.67:1).
About this color
#3D3280 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.126 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.039 away. White text reads best on it, at 10.67:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.96:1 |
| White text | 10.67:1 |
Values
| HEX | #3D3280 |
| RGB | rgb(61, 50, 128) |
| HSL | hsl(248, 44%, 35%) |
| OKLCH | oklch(37.5% 0.126 285) |
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 #3D3280 | 10.67:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #3D3280 | 1.96:1 | Fails | Lc 9.5 | Not readable |
| #3D3280 text on white | 10.67:1 | AAA | Lc 94.4 | Preferred for body text |
| #3D3280 text on black | 1.96:1 | Fails | Lc -8.1 | 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
#F4F4FE
oklch(97% 0.013 286.1)
-
Step 100
100
#E7E8FC
oklch(93.6% 0.027 283.6)
-
Step 200
200
#D5D5FB
oklch(88.5% 0.052 285.3)
-
Step 300
300
#BAB8FC
oklch(80.9% 0.095 285.4)
-
Step 400
400
#9891FA
oklch(70.7% 0.151 284.9)
-
Step 500
500
#8171F8
oklch(63.1% 0.194 284.8)
-
Step 600
600
#6D54E6
oklch(55.5% 0.211 285.1)
-
Step 700
700
#5C43C8
oklch(49.1% 0.196 285.2)
-
Step 800
800
#4A39A2
oklch(42.7% 0.162 284.6)
-
Step 900
900 (this color)
#3D3280
oklch(37.5% 0.126 285)
-
Step 950
950
#241E4B
oklch(26.9% 0.08 285.8)
#3D3280 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) | #004083 | 0.065 |
| Deuteranopia (no green cones) | #003C7E | 0.064 |
| Tritanopia (no blue cones) | #244454 | 0.106 |
| Achromatopsia (no color) | #3E3E3E | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D3280
#3D3280
oklch(37.5% 0.126 285)
- #484300
#484300
oklch(37.6% 0.08 104.8)
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 #3D3280, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.039
- Blueberry #464196 ΔE 0.054
- Cobalt #1E488F ΔE 0.067
- Twilight Blue #0A437A ΔE 0.068
- Marine Blue #01386A ΔE 0.077
- Indigo #4B0082 ΔE 0.078
- Sapphire #2138AB ΔE 0.080
- Imperial Purple #480CA8 ΔE 0.084
Use #3D3280 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.