#3F2B5A
Closest named color: Space Cadet (#2B2D42). oklch(33.6% 0.082 301.8), rgb(63, 43, 90).
Aa
White text reads best on this color (12.32:1).
About this color
#3F2B5A is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.082 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.059 away. White text reads best on it, at 12.32:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.082) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.70:1 |
| White text | 12.32:1 |
Values
| HEX | #3F2B5A |
| RGB | rgb(63, 43, 90) |
| HSL | hsl(266, 35%, 26%) |
| OKLCH | oklch(33.6% 0.082 301.8) |
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 #3F2B5A | 12.32:1 | AAA | Lc -101.4 | Preferred for body text |
| Black text on #3F2B5A | 1.70:1 | Fails | Lc 0.0 | Not readable |
| #3F2B5A text on white | 12.32:1 | AAA | Lc 97.9 | Preferred for body text |
| #3F2B5A text on black | 1.70:1 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#ECE7F4
oklch(93.6% 0.018 303.4)
-
Step 200
200
#DDD4ED
oklch(88.5% 0.035 302)
-
Step 300
300
#C8B8E3
oklch(81% 0.062 302)
-
Step 400
400
#AC92D4
oklch(70.7% 0.098 302)
-
Step 500
500
#9875C9
oklch(63.1% 0.127 302.1)
-
Step 600
600
#835DB6
oklch(55.7% 0.138 301.8)
-
Step 700
700
#6F4C9C
oklch(49.2% 0.127 302.1)
-
Step 800
800
#5A3F7F
oklch(42.8% 0.106 301.6)
-
Step 900
900 (this color)
#3F2B5A
oklch(33.6% 0.082 301.8)
-
Step 950
950
#2B203C
oklch(27.1% 0.052 301.1)
#3F2B5A 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) | #1D345C | 0.057 |
| Deuteranopia (no green cones) | #223559 | 0.053 |
| Tritanopia (no blue cones) | #3A333E | 0.062 |
| Achromatopsia (no color) | #353535 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F2B5A
#3F2B5A
oklch(33.6% 0.082 301.8)
- #303D00
#303D00
oklch(33.6% 0.082 122.1)
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 #3F2B5A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.059
- Gunmetal #293241 ΔE 0.067
- Grape Purple #5D1451 ΔE 0.074
- Dark Blue Grey #1F3B4D ΔE 0.074
- Onyx #343A40 ΔE 0.076
- Plum Purple #4E0550 ΔE 0.076
- Marine #042E60 ΔE 0.078
Use #3F2B5A 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.