#4F3661
Closest named color: Dark Slate Blue (#483D8B). oklch(38.1% 0.077 309.9), rgb(79, 54, 97).
Aa
White text reads best on this color (10.33:1).
About this color
#4F3661 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.077 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.071 away. White text reads best on it, at 10.33:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.077) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.03:1 |
| White text | 10.33:1 |
Values
| HEX | #4F3661 |
| RGB | rgb(79, 54, 97) |
| HSL | hsl(275, 28%, 30%) |
| OKLCH | oklch(38.1% 0.077 309.9) |
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 #4F3661 | 10.33:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #4F3661 | 2.03:1 | Fails | Lc 10.1 | Not readable |
| #4F3661 text on white | 10.33:1 | AAA | Lc 93.9 | Preferred for body text |
| #4F3661 text on black | 2.03:1 | Fails | Lc -8.7 | 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 900.
-
Step 50
50
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F2
oklch(93.6% 0.016 310.1)
-
Step 200
200
#E0D4E9
oklch(88.6% 0.031 311)
-
Step 300
300
#CCB7DD
oklch(80.9% 0.057 309.9)
-
Step 400
400
#B291CC
oklch(70.8% 0.091 309.6)
-
Step 500
500
#9F74BF
oklch(63.1% 0.119 309.7)
-
Step 600
600
#8A5BAB
oklch(55.5% 0.129 309.9)
-
Step 700
700
#754B93
oklch(49.1% 0.119 309.6)
-
Step 800
800
#5F3E77
oklch(42.7% 0.098 309.5)
-
Step 900
900 (this color)
#4F3661
oklch(38.1% 0.077 309.9)
-
Step 950
950
#2E1F38
oklch(27% 0.049 310.9)
#4F3661 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) | #2D3F63 | 0.059 |
| Deuteranopia (no green cones) | #334160 | 0.054 |
| Tritanopia (no blue cones) | #4D3C47 | 0.053 |
| Achromatopsia (no color) | #404040 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F3661
#4F3661
oklch(38.1% 0.077 309.9)
- #354A1B
#354A1B
oklch(38% 0.076 129.6)
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 #4F3661, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.071
- Dark Grey Blue #29465B ΔE 0.075
- Grape Purple #5D1451 ΔE 0.077
- Purple Brown #673A3F ΔE 0.079
- Charcoal Grey #3C4142 ΔE 0.079
- Onyx #343A40 ΔE 0.080
- Prussian Blue #1D3557 ΔE 0.084
- Charcoal #264653 ΔE 0.084
Use #4F3661 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.