#3B327B
Closest named color: Dark Slate Blue (#483D8B). oklch(37% 0.119 284.5), rgb(59, 50, 123).
Aa
White text reads best on this color (10.89:1).
About this color
#3B327B is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.119 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.045 away. White text reads best on it, at 10.89:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.92:1 |
| White text | 10.89:1 |
Values
| HEX | #3B327B |
| RGB | rgb(59, 50, 123) |
| HSL | hsl(247, 42%, 34%) |
| OKLCH | oklch(37% 0.119 284.5) |
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 #3B327B | 10.89:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #3B327B | 1.92:1 | Fails | Lc 9.0 | Not readable |
| #3B327B text on white | 10.89:1 | AAA | Lc 94.9 | Preferred for body text |
| #3B327B text on black | 1.92:1 | Fails | Lc -7.7 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8FB
oklch(93.6% 0.026 283.5)
-
Step 200
200
#D5D5FA
oklch(88.5% 0.051 285.3)
-
Step 300
300
#BAB9F9
oklch(80.9% 0.09 284.9)
-
Step 400
400
#9792F6
oklch(70.6% 0.144 284.4)
-
Step 500
500
#8073F2
oklch(63% 0.184 284.4)
-
Step 600
600
#6C58E1
oklch(55.7% 0.2 284.5)
-
Step 700
700
#5A47C3
oklch(49.1% 0.185 284.3)
-
Step 800
800
#4A3B9E
oklch(42.7% 0.154 284.7)
-
Step 900
900 (this color)
#3B327B
oklch(37% 0.119 284.5)
-
Step 950
950
#231F49
oklch(26.9% 0.075 284.4)
#3B327B 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) | #003F7D | 0.062 |
| Deuteranopia (no green cones) | #003B79 | 0.061 |
| Tritanopia (no blue cones) | #234351 | 0.102 |
| Achromatopsia (no color) | #3D3D3D | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B327B
#3B327B
oklch(37% 0.119 284.5)
- #464100
#464100
oklch(36.9% 0.078 104.7)
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 #3B327B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.045
- Blueberry #464196 ΔE 0.061
- Twilight Blue #0A437A ΔE 0.064
- Cobalt #1E488F ΔE 0.069
- Marine Blue #01386A ΔE 0.070
- Prussian Blue #1D3557 ΔE 0.079
- Indigo #4B0082 ΔE 0.080
- Marine #042E60 ΔE 0.085
Use #3B327B 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.