#4B3F99
Closest named color: Blueberry (#464196). oklch(43.1% 0.141 284.9), rgb(75, 63, 153).
Aa
White text reads best on this color (8.50:1).
About this color
#4B3F99 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.141 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.010 away. White text reads best on it, at 8.50:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.47:1 |
| White text | 8.50:1 |
Values
| HEX | #4B3F99 |
| RGB | rgb(75, 63, 153) |
| HSL | hsl(248, 42%, 42%) |
| OKLCH | oklch(43.1% 0.141 284.9) |
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 #4B3F99 | 8.50:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #4B3F99 | 2.47:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #4B3F99 text on white | 8.50:1 | AAA | Lc 88.9 | Fine for body text |
| #4B3F99 text on black | 2.47:1 | Fails | Lc -13.3 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E8E8FA
oklch(93.6% 0.024 285.9)
-
Step 200
200
#D5D6F7
oklch(88.6% 0.045 284.1)
-
Step 300
300
#BABAF5
oklch(81% 0.083 284.4)
-
Step 400
400
#9894EF
oklch(70.7% 0.131 284.5)
-
Step 500
500
#8176EA
oklch(63.1% 0.169 284.8)
-
Step 600
600
#6C5BD8
oklch(55.5% 0.184 284.9)
-
Step 700
700
#5B4ABB
oklch(49% 0.171 285.1)
-
Step 800
800 (this color)
#4B3F99
oklch(43.1% 0.141 284.9)
-
Step 900
900
#3D3679
oklch(37.8% 0.11 284.5)
-
Step 950
950
#242047
oklch(27.1% 0.07 285.3)
#4B3F99 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) | #004F9C | 0.073 |
| Deuteranopia (no green cones) | #004A97 | 0.072 |
| Tritanopia (no blue cones) | #2E5466 | 0.119 |
| Achromatopsia (no color) | #4D4D4D | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B3F99
#4B3F99
oklch(43.1% 0.141 284.9)
- #585200
#585200
oklch(43.1% 0.091 104.7)
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 #4B3F99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.010
- Dark Slate Blue #483D8B ΔE 0.024
- Rebecca Purple #663399 ΔE 0.053
- Twilight #4E518B ΔE 0.057
- Cobalt #1E488F ΔE 0.061
- Sapphire #2138AB ΔE 0.069
- Dusk Blue #26538D ΔE 0.071
- Blue With A Hint Of Purple #533CC6 ΔE 0.073
Use #4B3F99 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.