#3D3176
Closest named color: Dark Slate Blue (#483D8B). oklch(36.6% 0.113 287.4), rgb(61, 49, 118).
Aa
White text reads best on this color (11.05:1).
About this color
#3D3176 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.113 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.050 away. White text reads best on it, at 11.05:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.89:1 |
| White text | 11.05:1 |
Values
| HEX | #3D3176 |
| RGB | rgb(61, 49, 118) |
| HSL | hsl(250, 41%, 33%) |
| OKLCH | oklch(36.6% 0.113 287.4) |
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 #3D3176 | 11.05:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #3D3176 | 1.89:1 | Fails | Lc 8.6 | Not readable |
| #3D3176 text on white | 11.05:1 | AAA | Lc 95.3 | Preferred for body text |
| #3D3176 text on black | 1.89:1 | Fails | Lc -7.3 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E8E8FA
oklch(93.6% 0.024 285.9)
-
Step 200
200
#D6D5F8
oklch(88.5% 0.048 286.7)
-
Step 300
300
#BDB9F5
oklch(81% 0.084 287.4)
-
Step 400
400
#9C92F0
oklch(70.7% 0.135 287.3)
-
Step 500
500
#8673EB
oklch(63% 0.174 287.6)
-
Step 600
600
#7158DA
oklch(55.6% 0.19 287.4)
-
Step 700
700
#5F47BD
oklch(49% 0.177 287.4)
-
Step 800
800
#4D3C99
oklch(42.8% 0.145 286.9)
-
Step 900
900 (this color)
#3D3176
oklch(36.6% 0.113 287.4)
-
Step 950
950
#251F47
oklch(26.9% 0.072 287.4)
#3D3176 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) | #083E78 | 0.063 |
| Deuteranopia (no green cones) | #073A75 | 0.062 |
| Tritanopia (no blue cones) | #2B404E | 0.094 |
| Achromatopsia (no color) | #3C3C3C | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D3176
#3D3176
oklch(36.6% 0.113 287.4)
- #434100
#434100
oklch(36.5% 0.079 107.8)
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 #3D3176, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.050
- Blueberry #464196 ΔE 0.067
- Twilight Blue #0A437A ΔE 0.068
- Marine Blue #01386A ΔE 0.071
- Prussian Blue #1D3557 ΔE 0.075
- Cobalt #1E488F ΔE 0.075
- Indigo #4B0082 ΔE 0.079
- Marine #042E60 ΔE 0.083
Use #3D3176 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.