#3F3E94
Closest named color: Blueberry (#464196). oklch(41.6% 0.138 279.1), rgb(63, 62, 148).
Aa
White text reads best on this color (9.02:1).
About this color
#3F3E94 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.138 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.015 away. White text reads best on it, at 9.02:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.32:1 |
| White text | 9.02:1 |
Values
| HEX | #3F3E94 |
| RGB | rgb(63, 62, 148) |
| HSL | hsl(241, 41%, 41%) |
| OKLCH | oklch(41.6% 0.138 279.1) |
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 #3F3E94 | 9.02:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #3F3E94 | 2.32:1 | Fails | Lc 13.6 | Not readable |
| #3F3E94 text on white | 9.02:1 | AAA | Lc 90.4 | Preferred for body text |
| #3F3E94 text on black | 2.32:1 | Fails | Lc -11.9 | 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 800.
-
Step 50
50
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E9FA
oklch(93.7% 0.023 277.9)
-
Step 200
200
#D2D7F7
oklch(88.5% 0.044 278.4)
-
Step 300
300
#B5BCF5
oklch(81% 0.081 279)
-
Step 400
400
#9097EF
oklch(70.7% 0.128 279.1)
-
Step 500
500
#777AEA
oklch(63.1% 0.165 279.4)
-
Step 600
600
#6160D8
oklch(55.5% 0.179 279.2)
-
Step 700
700
#514FBB
oklch(49.1% 0.165 279.2)
-
Step 800
800 (this color)
#3F3E94
oklch(41.6% 0.138 279.1)
-
Step 900
900
#373879
oklch(37.7% 0.108 279.2)
-
Step 950
950
#202147
oklch(26.9% 0.069 279.5)
#3F3E94 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) | #004C97 | 0.058 |
| Deuteranopia (no green cones) | #004592 | 0.056 |
| Tritanopia (no blue cones) | #115263 | 0.118 |
| Achromatopsia (no color) | #494949 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F3E94
#3F3E94
oklch(41.6% 0.138 279.1)
- #584C00
#584C00
oklch(41.6% 0.086 98.8)
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 #3F3E94, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.015
- Dark Slate Blue #483D8B ΔE 0.020
- Cobalt #1E488F ΔE 0.045
- Sapphire #2138AB ΔE 0.057
- Twilight #4E518B ΔE 0.062
- Dusk Blue #26538D ΔE 0.063
- Light Navy #155084 ΔE 0.070
- Rebecca Purple #663399 ΔE 0.071
Use #3F3E94 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.