#3E3271
Closest named color: Dark Slate Blue (#483D8B). oklch(36.5% 0.105 288.9), rgb(62, 50, 113).
Aa
White text reads best on this color (11.05:1).
About this color
#3E3271 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.105 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.054 away. White text reads best on it, at 11.05:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.89:1 |
| White text | 11.05:1 |
Values
| HEX | #3E3271 |
| RGB | rgb(62, 50, 113) |
| HSL | hsl(251, 39%, 32%) |
| OKLCH | oklch(36.5% 0.105 288.9) |
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 #3E3271 | 11.05:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #3E3271 | 1.89:1 | Fails | Lc 8.5 | Not readable |
| #3E3271 text on white | 11.05:1 | AAA | Lc 95.4 | Preferred for body text |
| #3E3271 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F9
oklch(93.7% 0.023 288.7)
-
Step 200
200
#D7D5F5
oklch(88.5% 0.044 288.3)
-
Step 300
300
#BEB9F1
oklch(80.9% 0.079 288.6)
-
Step 400
400
#9E93EA
oklch(70.8% 0.125 288.6)
-
Step 500
500
#8875E3
oklch(63.1% 0.161 288.9)
-
Step 600
600
#735BD1
oklch(55.6% 0.175 288.8)
-
Step 700
700
#614AB5
oklch(49.1% 0.162 288.9)
-
Step 800
800
#4F3D92
oklch(42.6% 0.134 289.2)
-
Step 900
900 (this color)
#3E3271
oklch(36.5% 0.105 288.9)
-
Step 950
950
#262044
oklch(27% 0.065 288.9)
#3E3271 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) | #143D73 | 0.058 |
| Deuteranopia (no green cones) | #153A70 | 0.056 |
| Tritanopia (no blue cones) | #2F3F4C | 0.086 |
| Achromatopsia (no color) | #3C3C3C | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E3271
#3E3271
oklch(36.5% 0.105 288.9)
- #424100
#424100
oklch(36.4% 0.079 108.8)
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 #3E3271, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.054
- Twilight Blue #0A437A ΔE 0.068
- Marine Blue #01386A ΔE 0.070
- Prussian Blue #1D3557 ΔE 0.070
- Blueberry #464196 ΔE 0.072
- Cobalt #1E488F ΔE 0.078
- Dark Grey Blue #29465B ΔE 0.081
- Marine #042E60 ΔE 0.082
Use #3E3271 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.