#4F418E
Closest named color: Dark Slate Blue (#483D8B). oklch(43% 0.123 288.5), rgb(79, 65, 142).
Aa
White text reads best on this color (8.47:1).
About this color
#4F418E is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.123 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.017 away. White text reads best on it, at 8.47:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.47:1 |
| White text | 8.47:1 |
Values
| HEX | #4F418E |
| RGB | rgb(79, 65, 142) |
| HSL | hsl(251, 37%, 41%) |
| OKLCH | oklch(43% 0.123 288.5) |
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 #4F418E | 8.47:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #4F418E | 2.47:1 | Fails | Lc 15.0 | Dividers and decoration only |
| #4F418E text on white | 8.47:1 | AAA | Lc 88.9 | Fine for body text |
| #4F418E 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
#F5F5FC
oklch(97.2% 0.009 286.2)
-
Step 100
100
#E9E8F7
oklch(93.6% 0.02 289.1)
-
Step 200
200
#D7D5F3
oklch(88.4% 0.041 288.6)
-
Step 300
300
#BEBAED
oklch(80.9% 0.072 288.3)
-
Step 400
400
#9E94E4
oklch(70.7% 0.116 288.8)
-
Step 500
500
#8778DC
oklch(63.1% 0.147 288.3)
-
Step 600
600
#725FC9
oklch(55.6% 0.158 288.4)
-
Step 700
700
#604DAE
oklch(49% 0.149 288.7)
-
Step 800
800 (this color)
#4F418E
oklch(43% 0.123 288.5)
-
Step 900
900
#413771
oklch(37.8% 0.096 288.9)
-
Step 950
950
#262142
oklch(27.1% 0.06 288.7)
#4F418E 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) | #1D4F91 | 0.067 |
| Deuteranopia (no green cones) | #1D4B8C | 0.065 |
| Tritanopia (no blue cones) | #3C5161 | 0.101 |
| Achromatopsia (no color) | #4D4D4D | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F418E
#4F418E
oklch(43% 0.123 288.5)
- #555300
#555300
oklch(43% 0.093 108.1)
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 #4F418E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.017
- Blueberry #464196 ΔE 0.020
- Twilight #4E518B ΔE 0.044
- Rebecca Purple #663399 ΔE 0.053
- Dusk #4E5481 ΔE 0.061
- Cobalt #1E488F ΔE 0.063
- Dusk Blue #26538D ΔE 0.067
- Denim Blue #3B5B92 ΔE 0.072
Use #4F418E 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.