#4F3F9B
Closest named color: Blueberry (#464196). oklch(43.6% 0.144 286.8), rgb(79, 63, 155).
Aa
White text reads best on this color (8.34:1).
About this color
#4F3F9B is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.144 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.017 away. White text reads best on it, at 8.34:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.144) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.51:1 |
| White text | 8.34:1 |
Values
| HEX | #4F3F9B |
| RGB | rgb(79, 63, 155) |
| HSL | hsl(250, 42%, 43%) |
| OKLCH | oklch(43.6% 0.144 286.8) |
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 #4F3F9B | 8.34:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #4F3F9B | 2.51:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #4F3F9B text on white | 8.34:1 | AAA | Lc 88.5 | Fine for body text |
| #4F3F9B text on black | 2.51:1 | Fails | Lc -13.7 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E8E8FA
oklch(93.6% 0.024 285.9)
-
Step 200
200
#D6D5F7
oklch(88.4% 0.047 286.8)
-
Step 300
300
#BCB9F5
oklch(80.9% 0.084 286.6)
-
Step 400
400
#9B92F0
oklch(70.6% 0.135 286.8)
-
Step 500
500
#8574EA
oklch(63.1% 0.172 287)
-
Step 600
600
#7059D9
oklch(55.6% 0.188 286.9)
-
Step 700
700
#5E48BC
oklch(49% 0.174 286.8)
-
Step 800
800 (this color)
#4F3F9B
oklch(43.6% 0.144 286.8)
-
Step 900
900
#3F3579
oklch(37.8% 0.112 286.5)
-
Step 950
950
#251F47
oklch(26.9% 0.072 287.4)
#4F3F9B 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) | #00509E | 0.079 |
| Deuteranopia (no green cones) | #004B99 | 0.078 |
| Tritanopia (no blue cones) | #355467 | 0.119 |
| Achromatopsia (no color) | #4E4E4E | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F3F9B
#4F3F9B
oklch(43.6% 0.144 286.8)
- #585400
#585400
oklch(43.6% 0.093 106.5)
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 #4F3F9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.017
- Dark Slate Blue #483D8B ΔE 0.029
- Rebecca Purple #663399 ΔE 0.047
- Twilight #4E518B ΔE 0.057
- Cobalt #1E488F ΔE 0.068
- Blue With A Hint Of Purple #533CC6 ΔE 0.069
- Sapphire #2138AB ΔE 0.073
- Dusk Blue #26538D ΔE 0.076
Use #4F3F9B 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.