#4F3289
Closest named color: Dark Slate Blue (#483D8B). oklch(40% 0.138 294.7), rgb(79, 50, 137).
Aa
White text reads best on this color (9.76:1).
About this color
#4F3289 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.138 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.028 away. White text reads best on it, at 9.76:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.14:1 |
| White text | 9.76:1 |
Values
| HEX | #4F3289 |
| RGB | rgb(79, 50, 137) |
| HSL | hsl(260, 47%, 37%) |
| OKLCH | oklch(40% 0.138 294.7) |
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 #4F3289 | 9.76:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #4F3289 | 2.14:1 | Fails | Lc 11.7 | Not readable |
| #4F3289 text on white | 9.76:1 | AAA | Lc 92.2 | Preferred for body text |
| #4F3289 text on black | 2.14:1 | Fails | Lc -10.2 | 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 900.
-
Step 50
50
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#EBE6FC
oklch(93.5% 0.03 296.2)
-
Step 200
200
#DBD2FC
oklch(88.4% 0.058 295)
-
Step 300
300
#C5B4FD
oklch(81% 0.103 294.7)
-
Step 400
400
#A988FC
oklch(70.7% 0.166 294.9)
-
Step 500
500
#9665FA
oklch(63.2% 0.212 294.7)
-
Step 600
600
#8245E9
oklch(55.6% 0.231 294.7)
-
Step 700
700
#6E34CA
oklch(49% 0.215 294.7)
-
Step 800
800
#592EA3
oklch(42.7% 0.177 294.5)
-
Step 900
900 (this color)
#4F3289
oklch(40% 0.138 294.7)
-
Step 950
950
#2A1A4C
oklch(26.9% 0.089 294.4)
#4F3289 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) | #00458C | 0.091 |
| Deuteranopia (no green cones) | #004287 | 0.091 |
| Tritanopia (no blue cones) | #404658 | 0.111 |
| Achromatopsia (no color) | #444444 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F3289
#4F3289
oklch(40% 0.138 294.7)
- #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 #4F3289, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.028
- Blueberry #464196 ΔE 0.042
- Rebecca Purple #663399 ΔE 0.051
- Imperial Purple #480CA8 ΔE 0.076
- Indigo #4B0082 ΔE 0.076
- Chrysanthemum #560BAD ΔE 0.077
- Twilight #4E518B ΔE 0.080
- Cobalt #1E488F ΔE 0.080
Use #4F3289 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.