#4F3396
Closest named color: Dark Slate Blue (#483D8B). oklch(41.2% 0.154 291.1), rgb(79, 51, 150).
Aa
White text reads best on this color (9.34:1).
About this color
#4F3396 is a dark, vivid purple. In OKLCH its lightness is 41%, its chroma 0.154 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.032 away. White text reads best on it, at 9.34:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | vivid (0.154) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.24:1 |
| White text | 9.34:1 |
Values
| HEX | #4F3396 |
| RGB | rgb(79, 51, 150) |
| HSL | hsl(257, 49%, 39%) |
| OKLCH | oklch(41.2% 0.154 291.1) |
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 #4F3396 | 9.34:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #4F3396 | 2.24:1 | Fails | Lc 12.9 | Not readable |
| #4F3396 text on white | 9.34:1 | AAA | Lc 91.1 | Preferred for body text |
| #4F3396 text on black | 2.24:1 | Fails | Lc -11.2 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7FA
oklch(93.5% 0.026 290.7)
-
Step 200
200
#D9D4F8
oklch(88.5% 0.049 291.7)
-
Step 300
300
#C0B7F7
oklch(80.9% 0.09 290.7)
-
Step 400
400
#A28FF3
oklch(70.8% 0.144 291)
-
Step 500
500
#8D6FEE
oklch(63.1% 0.184 291.1)
-
Step 600
600
#7953DC
oklch(55.6% 0.199 291.3)
-
Step 700
700
#6642BF
oklch(49.1% 0.186 291.3)
-
Step 800
800 (this color)
#4F3396
oklch(41.2% 0.154 291.1)
-
Step 900
900
#44317B
oklch(37.6% 0.12 291.4)
-
Step 950
950
#281E48
oklch(27.1% 0.075 291.5)
#4F3396 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) | #004899 | 0.089 |
| Deuteranopia (no green cones) | #004494 | 0.088 |
| Tritanopia (no blue cones) | #394B60 | 0.124 |
| Achromatopsia (no color) | #474747 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F3396
#4F3396
oklch(41.2% 0.154 291.1)
- #4D4F00
#4D4F00
oklch(41.2% 0.091 111.4)
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 #4F3396, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.032
- Blueberry #464196 ΔE 0.034
- Rebecca Purple #663399 ΔE 0.044
- Chrysanthemum #560BAD ΔE 0.063
- Imperial Purple #480CA8 ΔE 0.064
- Sapphire #2138AB ΔE 0.075
- Indigo Blue #3A18B1 ΔE 0.075
- Cobalt #1E488F ΔE 0.079
Use #4F3396 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.