#4F3681
Closest named color: Dark Slate Blue (#483D8B). oklch(40.1% 0.122 295.8), rgb(79, 54, 129).
Aa
White text reads best on this color (9.64:1).
About this color
#4F3681 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.122 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.025 away. White text reads best on it, at 9.64:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.122) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.17:1 |
| White text | 9.64:1 |
Values
| HEX | #4F3681 |
| RGB | rgb(79, 54, 129) |
| HSL | hsl(260, 41%, 36%) |
| OKLCH | oklch(40.1% 0.122 295.8) |
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 #4F3681 | 9.64:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #4F3681 | 2.17:1 | Fails | Lc 11.9 | Not readable |
| #4F3681 text on white | 9.64:1 | AAA | Lc 92.1 | Preferred for body text |
| #4F3681 text on black | 2.17:1 | Fails | Lc -10.3 | 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 900.
-
Step 50
50
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EBE7FA
oklch(93.7% 0.026 295.5)
-
Step 200
200
#DBD3F8
oklch(88.5% 0.051 295.2)
-
Step 300
300
#C5B5F5
oklch(80.9% 0.091 295.8)
-
Step 400
400
#A98CF1
oklch(70.8% 0.146 295.7)
-
Step 500
500
#956BEB
oklch(63% 0.186 295.7)
-
Step 600
600
#814EDA
oklch(55.6% 0.204 295.8)
-
Step 700
700
#6D3EBD
oklch(49.1% 0.189 295.6)
-
Step 800
800
#593499
oklch(42.7% 0.157 295.9)
-
Step 900
900 (this color)
#4F3681
oklch(40.1% 0.122 295.8)
-
Step 950
950
#2A1C47
oklch(26.9% 0.077 295.8)
#4F3681 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) | #114584 | 0.082 |
| Deuteranopia (no green cones) | #1A447F | 0.077 |
| Tritanopia (no blue cones) | #434656 | 0.096 |
| Achromatopsia (no color) | #454545 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F3681
#4F3681
oklch(40.1% 0.122 295.8)
- #464D00
#464D00
oklch(40% 0.091 115.6)
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 #4F3681, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.025
- Blueberry #464196 ΔE 0.044
- Rebecca Purple #663399 ΔE 0.058
- Twilight #4E518B ΔE 0.071
- Cobalt #1E488F ΔE 0.077
- Dusk #4E5481 ΔE 0.082
- Indigo #4B0082 ΔE 0.086
- Twilight Blue #0A437A ΔE 0.088
Use #4F3681 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.