#3F2958
Closest named color: Space Cadet (#2B2D42). oklch(33.1% 0.083 303.8), rgb(63, 41, 88).
Aa
White text reads best on this color (12.57:1).
About this color
#3F2958 is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.083 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.057 away. White text reads best on it, at 12.57:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.083) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.66:1 |
| White text | 12.57:1 |
Values
| HEX | #3F2958 |
| RGB | rgb(63, 41, 88) |
| HSL | hsl(268, 36%, 25%) |
| OKLCH | oklch(33.1% 0.083 303.8) |
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 #3F2958 | 12.57:1 | AAA | Lc -101.8 | Preferred for body text |
| Black text on #3F2958 | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #3F2958 text on white | 12.57:1 | AAA | Lc 98.4 | Preferred for body text |
| #3F2958 text on black | 1.66:1 | 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
#DED4EC
oklch(88.5% 0.034 304.5)
-
Step 300
300
#C9B7E2
oklch(80.9% 0.063 304.1)
-
Step 400
400
#AE91D4
oklch(70.7% 0.1 303.8)
-
Step 500
500
#9A74C8
oklch(63% 0.128 303.8)
-
Step 600
600
#855BB5
oklch(55.5% 0.14 303.7)
-
Step 700
700
#714B9B
oklch(49.1% 0.128 304)
-
Step 800
800
#5C3E7E
oklch(42.8% 0.107 303.9)
-
Step 900
900 (this color)
#3F2958
oklch(33.1% 0.083 303.8)
-
Step 950
950
#2C1F3B
oklch(26.9% 0.053 304.5)
#3F2958 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) | #1B335A | 0.061 |
| Deuteranopia (no green cones) | #213357 | 0.055 |
| Tritanopia (no blue cones) | #3B313C | 0.062 |
| Achromatopsia (no color) | #333333 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F2958
#3F2958
oklch(33.1% 0.083 303.8)
- #2D3C00
#2D3C00
oklch(33.1% 0.082 123.9)
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 #3F2958, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.057
- Prussian Blue #1D3557 ΔE 0.061
- Gunmetal #293241 ΔE 0.067
- Plum Purple #4E0550 ΔE 0.071
- Grape Purple #5D1451 ΔE 0.072
- Deep Violet #490648 ΔE 0.073
- Dark Blue Grey #1F3B4D ΔE 0.077
- Onyx #343A40 ΔE 0.078
Use #3F2958 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.