#3C3285
Closest named color: Dark Slate Blue (#483D8B). oklch(37.9% 0.134 283.4), rgb(60, 50, 133).
Aa
White text reads best on this color (10.56:1).
About this color
#3C3285 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.134 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.037 away. White text reads best on it, at 10.56:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.98:1 |
| White text | 10.56:1 |
Values
| HEX | #3C3285 |
| RGB | rgb(60, 50, 133) |
| HSL | hsl(247, 45%, 36%) |
| OKLCH | oklch(37.9% 0.134 283.4) |
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 #3C3285 | 10.56:1 | AAA | Lc -98.1 | Preferred for body text |
| Black text on #3C3285 | 1.98:1 | Fails | Lc 9.8 | Not readable |
| #3C3285 text on white | 10.56:1 | AAA | Lc 94.1 | Preferred for body text |
| #3C3285 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
#F4F4FF
oklch(97% 0.015 286.1)
-
Step 100
100
#E7E8FD
oklch(93.7% 0.028 283.7)
-
Step 200
200
#D3D5FE
oklch(88.5% 0.056 283)
-
Step 300
300
#B8B8FF
oklch(80.8% 0.1 283.9)
-
Step 400
400
#9590FF
oklch(70.6% 0.159 283.6)
-
Step 500
500
#7E70FF
oklch(63.2% 0.205 283.3)
-
Step 600
600
#6A52EE
oklch(55.6% 0.223 283.4)
-
Step 700
700
#5941CF
oklch(49.1% 0.207 283.4)
-
Step 800
800
#4837A7
oklch(42.7% 0.171 283.3)
-
Step 900
900 (this color)
#3C3285
oklch(37.9% 0.134 283.4)
-
Step 950
950
#221E4E
oklch(27% 0.085 282.8)
#3C3285 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) | #004188 | 0.063 |
| Deuteranopia (no green cones) | #003C83 | 0.061 |
| Tritanopia (no blue cones) | #1D4656 | 0.114 |
| Achromatopsia (no color) | #3F3F3F | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C3285
#3C3285
oklch(37.9% 0.134 283.4)
- #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 #3C3285, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.037
- Blueberry #464196 ΔE 0.050
- Cobalt #1E488F ΔE 0.064
- Twilight Blue #0A437A ΔE 0.069
- Sapphire #2138AB ΔE 0.072
- Imperial Purple #480CA8 ΔE 0.077
- Indigo #4B0082 ΔE 0.078
- Marine Blue #01386A ΔE 0.080
Use #3C3285 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.