#3D3680
Closest named color: Dark Slate Blue (#483D8B). oklch(38.3% 0.121 283.4), rgb(61, 54, 128).
Aa
White text reads best on this color (10.30:1).
About this color
#3D3680 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.121 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.032 away. White text reads best on it, at 10.30:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.03:1 |
| White text | 10.30:1 |
Values
| HEX | #3D3680 |
| RGB | rgb(61, 54, 128) |
| HSL | hsl(246, 41%, 36%) |
| OKLCH | oklch(38.3% 0.121 283.4) |
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 #3D3680 | 10.30:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #3D3680 | 2.03:1 | Fails | Lc 10.3 | Not readable |
| #3D3680 text on white | 10.30:1 | AAA | Lc 93.6 | Preferred for body text |
| #3D3680 text on black | 2.03:1 | 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
#E7E8FB
oklch(93.6% 0.026 283.5)
-
Step 200
200
#D4D6FA
oklch(88.6% 0.049 282.8)
-
Step 300
300
#B8B9FA
oklch(80.8% 0.091 283.5)
-
Step 400
400
#9693F7
oklch(70.8% 0.144 283.4)
-
Step 500
500
#7E74F3
oklch(63.1% 0.184 283.3)
-
Step 600
600
#6A58E2
oklch(55.6% 0.201 283.6)
-
Step 700
700
#5847C4
oklch(49% 0.186 283.3)
-
Step 800
800
#483B9F
oklch(42.6% 0.155 283.5)
-
Step 900
900 (this color)
#3D3680
oklch(38.3% 0.121 283.4)
-
Step 950
950
#231F4A
oklch(27% 0.077 284.2)
#3D3680 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) | #064383 | 0.060 |
| Deuteranopia (no green cones) | #003E7E | 0.061 |
| Tritanopia (no blue cones) | #234755 | 0.103 |
| Achromatopsia (no color) | #404040 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D3680
#3D3680
oklch(38.3% 0.121 283.4)
- #4B4500
#4B4500
oklch(38.4% 0.081 103.9)
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 #3D3680, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.032
- Blueberry #464196 ΔE 0.048
- Cobalt #1E488F ΔE 0.059
- Twilight Blue #0A437A ΔE 0.062
- Marine Blue #01386A ΔE 0.076
- Light Navy #155084 ΔE 0.078
- Sapphire #2138AB ΔE 0.079
- Dusk Blue #26538D ΔE 0.081
Use #3D3680 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.