#4F406B
Closest named color: Dark Slate Blue (#483D8B). oklch(40.6% 0.072 299.2), rgb(79, 64, 107).
Aa
White text reads best on this color (9.21:1).
About this color
#4F406B is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.072 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.057 away. White text reads best on it, at 9.21:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.072) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.27:1 |
| White text | 9.21:1 |
Values
| HEX | #4F406B |
| RGB | rgb(79, 64, 107) |
| HSL | hsl(261, 25%, 34%) |
| OKLCH | oklch(40.6% 0.072 299.2) |
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 #4F406B | 9.21:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #4F406B | 2.27:1 | Fails | Lc 12.8 | Not readable |
| #4F406B text on white | 9.21:1 | AAA | Lc 91.2 | Preferred for body text |
| #4F406B text on black | 2.27:1 | Fails | Lc -11.2 | 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 800.
-
Step 50
50
#F6F5F9
oklch(97.2% 0.005 297.7)
-
Step 100
100
#EBE8F1
oklch(93.6% 0.012 301.3)
-
Step 200
200
#DBD6E7
oklch(88.5% 0.024 299.3)
-
Step 300
300
#C4BBD9
oklch(80.9% 0.043 299.1)
-
Step 400
400
#A698C5
oklch(70.7% 0.066 298.9)
-
Step 500
500
#917EB7
oklch(63.2% 0.086 299.2)
-
Step 600
600
#7B66A3
oklch(55.5% 0.095 299.1)
-
Step 700
700
#68558B
oklch(49.1% 0.087 299.4)
-
Step 800
800 (this color)
#4F406B
oklch(40.6% 0.072 299.2)
-
Step 900
900
#463B5B
oklch(37.8% 0.055 299.6)
-
Step 950
950
#292236
oklch(26.9% 0.038 300)
#4F406B 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) | #35476D | 0.043 |
| Deuteranopia (no green cones) | #38476A | 0.040 |
| Tritanopia (no blue cones) | #4A4750 | 0.057 |
| Achromatopsia (no color) | #484848 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F406B
#4F406B
oklch(40.6% 0.072 299.2)
- #454F1E
#454F1E
oklch(40.7% 0.072 119.4)
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 #4F406B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.057
- Dusk #4E5481 ΔE 0.061
- Twilight #4E518B ΔE 0.064
- Dusty Grape #545775 ΔE 0.067
- Dark Grey Blue #29465B ΔE 0.068
- Blueberry #464196 ΔE 0.073
- YInMn Blue #415A77 ΔE 0.075
- Charcoal #264653 ΔE 0.079
Use #4F406B 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.