#3F294F
Closest named color: Space Cadet (#2B2D42). oklch(32.5% 0.07 309.7), rgb(63, 41, 79).
Aa
White text reads best on this color (12.79:1).
About this color
#3F294F is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.070 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.047 away. White text reads best on it, at 12.79:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.070) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.64:1 |
| White text | 12.79:1 |
Values
| HEX | #3F294F |
| RGB | rgb(63, 41, 79) |
| HSL | hsl(275, 32%, 24%) |
| OKLCH | oklch(32.5% 0.07 309.7) |
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 #3F294F | 12.79:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #3F294F | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #3F294F text on white | 12.79:1 | AAA | Lc 98.8 | Preferred for body text |
| #3F294F text on black | 1.64:1 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F2
oklch(93.6% 0.016 310.1)
-
Step 200
200
#DFD4E8
oklch(88.5% 0.03 310.1)
-
Step 300
300
#CBB8DB
oklch(81% 0.053 309.5)
-
Step 400
400
#B092C9
oklch(70.6% 0.085 309.1)
-
Step 500
500
#9D76BA
oklch(63% 0.108 309.9)
-
Step 600
600
#885EA7
oklch(55.6% 0.118 309.5)
-
Step 700
700
#734D8F
oklch(49% 0.11 309.4)
-
Step 800
800
#5E4074
oklch(42.8% 0.09 309.6)
-
Step 900
900 (this color)
#3F294F
oklch(32.5% 0.07 309.7)
-
Step 950
950
#2D2037
oklch(27% 0.045 309.5)
#3F294F 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) | #213150 | 0.054 |
| Deuteranopia (no green cones) | #26334E | 0.050 |
| Tritanopia (no blue cones) | #3D2F38 | 0.050 |
| Achromatopsia (no color) | #323232 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F294F
#3F294F
oklch(32.5% 0.07 309.7)
- #283B10
#283B10
oklch(32.5% 0.07 129.8)
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 #3F294F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.047
- Gunmetal #293241 ΔE 0.057
- Prussian Blue #1D3557 ΔE 0.061
- Onyx #343A40 ΔE 0.068
- Deep Violet #490648 ΔE 0.072
- Dark Blue Grey #1F3B4D ΔE 0.072
- Grape Purple #5D1451 ΔE 0.072
- Plum Purple #4E0550 ΔE 0.073
Use #3F294F 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.