#3F283F
Closest named color: Space Cadet (#2B2D42). oklch(31.5% 0.051 326.7), rgb(63, 40, 63).
Aa
White text reads best on this color (13.23:1).
About this color
#3F283F is a dark, muted purple. In OKLCH its lightness is 31%, its chroma 0.051 and its hue 327°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.039 away. White text reads best on it, at 13.23:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | muted (0.051) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.58:1 |
| White text | 13.23:1 |
Values
| HEX | #3F283F |
| RGB | rgb(63, 40, 63) |
| HSL | hsl(300, 22%, 20%) |
| OKLCH | oklch(31.5% 0.051 326.7) |
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 #3F283F | 13.23:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #3F283F | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #3F283F text on white | 13.23:1 | AAA | Lc 99.5 | Preferred for body text |
| #3F283F text on black | 1.58:1 | 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
#F8F4F8
oklch(97.1% 0.007 325.6)
-
Step 100
100
#F0E6F0
oklch(93.6% 0.017 325.7)
-
Step 200
200
#E5D2E5
oklch(88.5% 0.033 325.9)
-
Step 300
300
#D6B4D5
oklch(81% 0.059 327)
-
Step 400
400
#C18BC0
oklch(70.7% 0.097 327.2)
-
Step 500
500
#B06DB0
oklch(63% 0.123 326.9)
-
Step 600
600
#9B549C
oklch(55.6% 0.134 326.7)
-
Step 700
700
#844485
oklch(49.1% 0.124 326.7)
-
Step 800
800
#6C386C
oklch(42.7% 0.104 327.2)
-
Step 900
900
#573158
oklch(37.6% 0.08 326.1)
-
Step 950
950 (this color)
#3F283F
oklch(31.5% 0.051 326.7)
#3F283F 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) | #262E40 | 0.047 |
| Deuteranopia (no green cones) | #2C313E | 0.043 |
| Tritanopia (no blue cones) | #402A30 | 0.030 |
| Achromatopsia (no color) | #303030 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F283F
#3F283F
oklch(31.5% 0.051 326.7)
- #1F3822
#1F3822
oklch(31.3% 0.05 147.1)
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 #3F283F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.039
- Gunmetal #293241 ΔE 0.047
- Onyx #343A40 ΔE 0.059
- Oxford Blue #1B263B ΔE 0.067
- Prussian Blue #1D3557 ΔE 0.070
- Dark Blue Grey #1F3B4D ΔE 0.072
- Jet #212529 ΔE 0.072
- Dark #1B2431 ΔE 0.075
Use #3F283F 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.