#3A3286
Closest named color: Dark Slate Blue (#483D8B). oklch(37.8% 0.135 282.1), rgb(58, 50, 134).
Aa
White text reads best on this color (10.60:1).
About this color
#3A3286 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.135 and its hue 282°. 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 10.60:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.98:1 |
| White text | 10.60:1 |
Values
| HEX | #3A3286 |
| RGB | rgb(58, 50, 134) |
| HSL | hsl(246, 46%, 36%) |
| OKLCH | oklch(37.8% 0.135 282.1) |
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 #3A3286 | 10.60:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #3A3286 | 1.98:1 | Fails | Lc 9.7 | Not readable |
| #3A3286 text on white | 10.60:1 | AAA | Lc 94.2 | Preferred for body text |
| #3A3286 text on black | 1.98:1 | Fails | Lc -8.4 | 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
#F4F5FF
oklch(97.2% 0.013 281.6)
-
Step 100
100
#E6E8FE
oklch(93.6% 0.03 281.7)
-
Step 200
200
#D2D5FE
oklch(88.4% 0.056 281.9)
-
Step 300
300
#B6B9FF
oklch(80.9% 0.099 282.1)
-
Step 400
400
#9391FF
oklch(70.6% 0.158 282.4)
-
Step 500
500
#7B71FF
oklch(63.1% 0.204 282)
-
Step 600
600
#6752F0
oklch(55.5% 0.226 282.2)
-
Step 700
700
#5641D1
oklch(49% 0.21 282)
-
Step 800
800
#4637A9
oklch(42.7% 0.174 282.1)
-
Step 900
900 (this color)
#3A3286
oklch(37.8% 0.135 282.1)
-
Step 950
950
#211E4E
oklch(26.9% 0.086 281.8)
#3A3286 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) | #004189 | 0.060 |
| Deuteranopia (no green cones) | #003C84 | 0.058 |
| Tritanopia (no blue cones) | #164657 | 0.115 |
| Achromatopsia (no color) | #3F3F3F | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A3286
#3A3286
oklch(37.8% 0.135 282.1)
- #4A4300
#4A4300
oklch(37.8% 0.079 102.7)
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 #3A3286, 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 0.051
- Cobalt #1E488F ΔE 0.062
- Twilight Blue #0A437A ΔE 0.067
- Sapphire #2138AB ΔE 0.069
- Imperial Purple #480CA8 ΔE 0.077
- Marine Blue #01386A ΔE 0.079
- Indigo #4B0082 ΔE 0.079
Use #3A3286 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.