#4F3A92
Closest named color: Dark Slate Blue (#483D8B). oklch(42.1% 0.139 290.1), rgb(79, 58, 146).
Aa
White text reads best on this color (8.92:1).
About this color
#4F3A92 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.139 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.018 away. White text reads best on it, at 8.92:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.35:1 |
| White text | 8.92:1 |
Values
| HEX | #4F3A92 |
| RGB | rgb(79, 58, 146) |
| HSL | hsl(254, 43%, 40%) |
| OKLCH | oklch(42.1% 0.139 290.1) |
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 #4F3A92 | 8.92:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #4F3A92 | 2.35:1 | Fails | Lc 13.8 | Not readable |
| #4F3A92 text on white | 8.92:1 | AAA | Lc 90.1 | Preferred for body text |
| #4F3A92 text on black | 2.35:1 | Fails | Lc -12.2 | 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 800.
-
Step 50
50
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F9
oklch(93.7% 0.023 288.7)
-
Step 200
200
#D8D5F6
oklch(88.6% 0.045 289.6)
-
Step 300
300
#BFB8F2
oklch(80.8% 0.081 290)
-
Step 400
400
#A091EB
oklch(70.6% 0.13 290.3)
-
Step 500
500
#8A73E5
oklch(63% 0.166 290.1)
-
Step 600
600
#7659D3
oklch(55.7% 0.18 290.3)
-
Step 700
700
#6348B7
oklch(49.1% 0.168 290)
-
Step 800
800 (this color)
#4F3A92
oklch(42.1% 0.139 290.1)
-
Step 900
900
#423476
oklch(37.6% 0.109 289.9)
-
Step 950
950
#271F45
oklch(27% 0.069 290.8)
#4F3A92 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) | #004B95 | 0.084 |
| Deuteranopia (no green cones) | #004890 | 0.083 |
| Tritanopia (no blue cones) | #3B4E60 | 0.114 |
| Achromatopsia (no color) | #4A4A4A | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F3A92
#4F3A92
oklch(42.1% 0.139 290.1)
- #515100
#515100
oklch(42.1% 0.092 109.8)
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 #4F3A92, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.018
- Blueberry #464196 ΔE 0.022
- Rebecca Purple #663399 ΔE 0.045
- Twilight #4E518B ΔE 0.063
- Cobalt #1E488F ΔE 0.070
- Sapphire #2138AB ΔE 0.078
- Chrysanthemum #560BAD ΔE 0.079
- Dusk #4E5481 ΔE 0.080
Use #4F3A92 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.