#3F3362
Closest named color: Prussian Blue (#1D3557). oklch(35.8% 0.08 293.7), rgb(63, 51, 98).
Aa
White text reads best on this color (11.28:1).
About this color
#3F3362 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.080 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.056 away. White text reads best on it, at 11.28:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.080) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.86:1 |
| White text | 11.28:1 |
Values
| HEX | #3F3362 |
| RGB | rgb(63, 51, 98) |
| HSL | hsl(255, 32%, 29%) |
| OKLCH | oklch(35.8% 0.08 293.7) |
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 #3F3362 | 11.28:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #3F3362 | 1.86:1 | Fails | Lc 8.0 | Not readable |
| #3F3362 text on white | 11.28:1 | AAA | Lc 95.9 | Preferred for body text |
| #3F3362 text on black | 1.86:1 | Fails | Lc 0.0 | 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
#F5F4FA
oklch(97% 0.008 293.9)
-
Step 100
100
#EAE8F5
oklch(93.6% 0.018 293.1)
-
Step 200
200
#DAD5EE
oklch(88.5% 0.034 294.9)
-
Step 300
300
#C2BAE4
oklch(80.9% 0.059 293.8)
-
Step 400
400
#A395D7
oklch(70.7% 0.096 293.5)
-
Step 500
500
#8E7ACC
oklch(63.2% 0.122 293.8)
-
Step 600
600
#7861B9
oklch(55.5% 0.134 293.6)
-
Step 700
700
#65509F
oklch(49% 0.123 293.6)
-
Step 800
800
#534281
oklch(42.8% 0.102 294.1)
-
Step 900
900 (this color)
#3F3362
oklch(35.8% 0.08 293.7)
-
Step 950
950
#28213D
oklch(27% 0.052 294.2)
#3F3362 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) | #243B64 | 0.044 |
| Deuteranopia (no green cones) | #253A61 | 0.043 |
| Tritanopia (no blue cones) | #373C45 | 0.066 |
| Achromatopsia (no color) | #3B3B3B | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F3362
#3F3362
oklch(35.8% 0.08 293.7)
- #3C4100
#3C4100
oklch(35.8% 0.081 114.6)
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 #3F3362, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.056
- Dark Grey Blue #29465B ΔE 0.068
- Dark Blue Grey #1F3B4D ΔE 0.068
- Space Cadet #2B2D42 ΔE 0.069
- Marine Blue #01386A ΔE 0.070
- Gunmetal #293241 ΔE 0.071
- Onyx #343A40 ΔE 0.072
- Dark Slate Blue #483D8B ΔE 0.074
Use #3F3362 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.