#3F243B
Closest named color: Space Cadet (#2B2D42). oklch(30.4% 0.055 332.3), rgb(63, 36, 59).
Aa
White text reads best on this color (13.75:1).
About this color
#3F243B is a dark, muted purple. In OKLCH its lightness is 30%, its chroma 0.055 and its hue 332°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.044 away. White text reads best on it, at 13.75:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | muted (0.055) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.52:1 |
| White text | 13.75:1 |
Values
| HEX | #3F243B |
| RGB | rgb(63, 36, 59) |
| HSL | hsl(309, 27%, 19%) |
| OKLCH | oklch(30.4% 0.055 332.3) |
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 #3F243B | 13.75:1 | AAA | Lc -103.3 | Preferred for body text |
| Black text on #3F243B | 1.52:1 | Fails | Lc 0.0 | Not readable |
| #3F243B text on white | 13.75:1 | AAA | Lc 100.2 | Preferred for body text |
| #3F243B text on black | 1.52:1 | 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
#F9F3F8
oklch(97% 0.009 330.9)
-
Step 100
100
#F2E5EF
oklch(93.5% 0.019 333.5)
-
Step 200
200
#E8D1E4
oklch(88.5% 0.036 331.6)
-
Step 300
300
#DBB2D3
oklch(81% 0.064 332.9)
-
Step 400
400
#C788BD
oklch(70.7% 0.104 332.4)
-
Step 500
500
#B869AD
oklch(63.2% 0.133 332.3)
-
Step 600
600
#A34F98
oklch(55.7% 0.144 332.5)
-
Step 700
700
#8B3F82
oklch(49.1% 0.135 332.1)
-
Step 800
800
#713469
oklch(42.6% 0.112 332.5)
-
Step 900
900
#5C2E56
oklch(37.7% 0.088 332.2)
-
Step 950
950 (this color)
#3F243B
oklch(30.4% 0.055 332.3)
#3F243B 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) | #232B3C | 0.054 |
| Deuteranopia (no green cones) | #2A2E3A | 0.049 |
| Tritanopia (no blue cones) | #41262D | 0.029 |
| Achromatopsia (no color) | #2D2D2D | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F243B
#3F243B
oklch(30.4% 0.055 332.3)
- #173721
#173721
oklch(30.5% 0.055 152)
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 #3F243B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.044
- Gunmetal #293241 ΔE 0.055
- Oxford Blue #1B263B ΔE 0.067
- Aubergine #3D0734 ΔE 0.067
- Onyx #343A40 ΔE 0.069
- Eggplant Purple #430541 ΔE 0.069
- Jet #212529 ΔE 0.069
- Deep Violet #490648 ΔE 0.070
Use #3F243B 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.