#4F377F
Closest named color: Dark Slate Blue (#483D8B). oklch(40.2% 0.117 296.1), rgb(79, 55, 127).
Aa
White text reads best on this color (9.60:1).
About this color
#4F377F is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.117 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 0.026 away. White text reads best on it, at 9.60:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.18:1 |
| White text | 9.60:1 |
Values
| HEX | #4F377F |
| RGB | rgb(79, 55, 127) |
| HSL | hsl(260, 40%, 36%) |
| OKLCH | oklch(40.2% 0.117 296.1) |
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 #4F377F | 9.60:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #4F377F | 2.18:1 | Fails | Lc 12.0 | Not readable |
| #4F377F text on white | 9.60:1 | AAA | Lc 92.0 | Preferred for body text |
| #4F377F text on black | 2.18:1 | Fails | Lc -10.4 | 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
#EBE7F9
oklch(93.6% 0.024 296.1)
-
Step 200
200
#DBD3F6
oklch(88.4% 0.048 295.9)
-
Step 300
300
#C5B5F3
oklch(80.8% 0.088 296.2)
-
Step 400
400
#A98DEE
oklch(70.8% 0.14 295.9)
-
Step 500
500
#956DE8
oklch(63.2% 0.179 295.9)
-
Step 600
600
#8151D6
oklch(55.7% 0.195 296.1)
-
Step 700
700
#6D40B9
oklch(49% 0.181 296.1)
-
Step 800
800
#593696
oklch(42.8% 0.15 296.2)
-
Step 900
900 (this color)
#4F377F
oklch(40.2% 0.117 296.1)
-
Step 950
950
#2A1D46
oklch(27% 0.074 295.6)
#4F377F 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) | #174581 | 0.078 |
| Deuteranopia (no green cones) | #1E447D | 0.073 |
| Tritanopia (no blue cones) | #444655 | 0.093 |
| Achromatopsia (no color) | #454545 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F377F
#4F377F
oklch(40.2% 0.117 296.1)
- #464E00
#464E00
oklch(40.3% 0.092 116.3)
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 #4F377F, 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 0.045
- Rebecca Purple #663399 ΔE 0.060
- Twilight #4E518B ΔE 0.070
- Cobalt #1E488F ΔE 0.077
- Dusk #4E5481 ΔE 0.079
- Twilight Blue #0A437A ΔE 0.086
- Dusk Blue #26538D ΔE 0.087
Use #4F377F 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.