#3F274C
Closest named color: Space Cadet (#2B2D42). oklch(32% 0.07 312.8), rgb(63, 39, 76).
Aa
White text reads best on this color (13.07:1).
About this color
#3F274C is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.070 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.046 away. White text reads best on it, at 13.07:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.070) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.60:1 |
| White text | 13.07:1 |
Values
| HEX | #3F274C |
| RGB | rgb(63, 39, 76) |
| HSL | hsl(279, 32%, 23%) |
| OKLCH | oklch(32% 0.07 312.8) |
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 #3F274C | 13.07:1 | AAA | Lc -102.5 | Preferred for body text |
| Black text on #3F274C | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #3F274C text on white | 13.07:1 | AAA | Lc 99.2 | Preferred for body text |
| #3F274C text on black | 1.60:1 | 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 950.
-
Step 50
50
#F8F3FB
oklch(97% 0.012 313.2)
-
Step 100
100
#EFE6F6
oklch(93.7% 0.023 310.7)
-
Step 200
200
#E4D1EF
oklch(88.5% 0.045 313.3)
-
Step 300
300
#D3B1E7
oklch(80.8% 0.083 312.8)
-
Step 400
400
#BD87DB
oklch(70.7% 0.132 312.8)
-
Step 500
500
#AC65D1
oklch(63% 0.17 312.8)
-
Step 600
600
#9849BE
oklch(55.6% 0.185 313.1)
-
Step 700
700
#813AA4
oklch(49.1% 0.171 312.7)
-
Step 800
800
#693185
oklch(42.7% 0.141 312.7)
-
Step 900
900
#562C6B
oklch(37.8% 0.112 313.1)
-
Step 950
950 (this color)
#3F274C
oklch(32% 0.07 312.8)
#3F274C 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) | #202F4D | 0.056 |
| Deuteranopia (no green cones) | #26314B | 0.051 |
| Tritanopia (no blue cones) | #3E2C35 | 0.048 |
| Achromatopsia (no color) | #313131 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F274C
#3F274C
oklch(32% 0.07 312.8)
- #243A11
#243A11
oklch(31.9% 0.07 132.9)
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 #3F274C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.046
- Gunmetal #293241 ΔE 0.057
- Prussian Blue #1D3557 ΔE 0.065
- Deep Violet #490648 ΔE 0.067
- Plum Purple #4E0550 ΔE 0.070
- Onyx #343A40 ΔE 0.070
- Eggplant Purple #430541 ΔE 0.071
- Grape Purple #5D1451 ΔE 0.071
Use #3F274C 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.