#4F318B
Closest named color: Dark Slate Blue (#483D8B). oklch(40% 0.143 294.4), rgb(79, 49, 139).
Aa
White text reads best on this color (9.79:1).
About this color
#4F318B is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.143 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.030 away. White text reads best on it, at 9.79:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.14:1 |
| White text | 9.79:1 |
Values
| HEX | #4F318B |
| RGB | rgb(79, 49, 139) |
| HSL | hsl(260, 48%, 37%) |
| OKLCH | oklch(40% 0.143 294.4) |
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 #4F318B | 9.79:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #4F318B | 2.14:1 | Fails | Lc 11.7 | Not readable |
| #4F318B text on white | 9.79:1 | AAA | Lc 92.3 | Preferred for body text |
| #4F318B text on black | 2.14:1 | Fails | Lc -10.1 | 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 900.
-
Step 50
50
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#EBE6FD
oklch(93.6% 0.031 295.8)
-
Step 200
200
#DBD2FD
oklch(88.5% 0.059 294.8)
-
Step 300
300
#C5B3FF
oklch(80.9% 0.107 294.8)
-
Step 400
400
#A987FF
oklch(70.7% 0.172 294.7)
-
Step 500
500
#9663FD
oklch(63.1% 0.219 294.6)
-
Step 600
600
#8242EC
oklch(55.5% 0.238 294.5)
-
Step 700
700
#6E32CE
oklch(49.1% 0.221 294.2)
-
Step 800
800
#5A2CA6
oklch(42.8% 0.182 294.6)
-
Step 900
900 (this color)
#4F318B
oklch(40% 0.143 294.4)
-
Step 950
950
#2A1A4D
oklch(27% 0.09 294)
#4F318B 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) | #00458E | 0.092 |
| Deuteranopia (no green cones) | #004289 | 0.092 |
| Tritanopia (no blue cones) | #3F4659 | 0.113 |
| Achromatopsia (no color) | #444444 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F318B
#4F318B
oklch(40% 0.143 294.4)
- #474D00
#474D00
oklch(40.1% 0.091 114.8)
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 #4F318B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.030
- Blueberry #464196 ΔE 0.042
- Rebecca Purple #663399 ΔE 0.050
- Imperial Purple #480CA8 ΔE 0.072
- Chrysanthemum #560BAD ΔE 0.073
- Indigo #4B0082 ΔE 0.074
- Cobalt #1E488F ΔE 0.082
- Twilight #4E518B ΔE 0.082
Use #4F318B 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.