#4F338E
Closest named color: Dark Slate Blue (#483D8B). oklch(40.6% 0.144 293.1), rgb(79, 51, 142).
Aa
White text reads best on this color (9.56:1).
About this color
#4F338E is a dark, vivid purple. In OKLCH its lightness is 41%, its chroma 0.144 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.026 away. White text reads best on it, at 9.56:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | vivid (0.144) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.19:1 |
| White text | 9.56:1 |
Values
| HEX | #4F338E |
| RGB | rgb(79, 51, 142) |
| HSL | hsl(258, 47%, 38%) |
| OKLCH | oklch(40.6% 0.144 293.1) |
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 #4F338E | 9.56:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #4F338E | 2.19:1 | Fails | Lc 12.2 | Not readable |
| #4F338E text on white | 9.56:1 | AAA | Lc 91.7 | Preferred for body text |
| #4F338E text on black | 2.19:1 | Fails | Lc -10.7 | 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
#EAE7F9
oklch(93.6% 0.024 293.6)
-
Step 200
200
#DAD4F6
oklch(88.5% 0.047 293.5)
-
Step 300
300
#C2B7F2
oklch(80.9% 0.083 293)
-
Step 400
400
#A48FEC
oklch(70.6% 0.134 293)
-
Step 500
500
#9070E6
oklch(63.1% 0.172 293.3)
-
Step 600
600
#7B55D4
oklch(55.6% 0.187 293.1)
-
Step 700
700
#6845B8
oklch(49.2% 0.173 293)
-
Step 800
800 (this color)
#4F338E
oklch(40.6% 0.144 293.1)
-
Step 900
900
#453276
oklch(37.6% 0.112 293.1)
-
Step 950
950
#281E45
oklch(26.9% 0.071 292.9)
#4F338E 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) | #004691 | 0.090 |
| Deuteranopia (no green cones) | #00448C | 0.090 |
| Tritanopia (no blue cones) | #3D485B | 0.115 |
| Achromatopsia (no color) | #454545 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F338E
#4F338E
oklch(40.6% 0.144 293.1)
- #4A4E00
#4A4E00
oklch(40.6% 0.091 113.1)
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 #4F338E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.026
- Blueberry #464196 ΔE 0.037
- Rebecca Purple #663399 ΔE 0.047
- Chrysanthemum #560BAD ΔE 0.072
- Imperial Purple #480CA8 ΔE 0.072
- Twilight #4E518B ΔE 0.078
- Cobalt #1E488F ΔE 0.078
- Indigo #4B0082 ΔE 0.080
Use #4F338E 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.