#4F5166
Closest named color: Dusty Grape (#545775). oklch(44.1% 0.035 280.6), rgb(79, 81, 102).
Aa
White text reads best on this color (7.77:1).
About this color
#4F5166 is a dark, muted purple. In OKLCH its lightness is 44%, its chroma 0.035 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.029 away. White text reads best on it, at 7.77:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.70:1 |
| White text | 7.77:1 |
Values
| HEX | #4F5166 |
| RGB | rgb(79, 81, 102) |
| HSL | hsl(235, 13%, 35%) |
| OKLCH | oklch(44.1% 0.035 280.6) |
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 #4F5166 | 7.77:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #4F5166 | 2.70:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #4F5166 text on white | 7.77:1 | AAA | Lc 87.0 | Fine for body text |
| #4F5166 text on black | 2.70:1 | Fails | Lc -15.1 | Dividers and decoration only |
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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9E9EE
oklch(93.5% 0.007 286.3)
-
Step 200
200
#D7D8E1
oklch(88.4% 0.012 281.1)
-
Step 300
300
#BEBFCE
oklch(80.8% 0.021 282.9)
-
Step 400
400
#9C9FB5
oklch(70.7% 0.032 279.4)
-
Step 500
500
#8487A3
oklch(63.1% 0.042 280.3)
-
Step 600
600
#6E718E
oklch(55.7% 0.045 280.2)
-
Step 700
700
#5C5E78
oklch(49% 0.042 281.3)
-
Step 800
800 (this color)
#4F5166
oklch(44.1% 0.035 280.6)
-
Step 900
900
#3F4050
oklch(37.7% 0.027 282.2)
-
Step 950
950
#25262F
oklch(27.1% 0.017 280.2)
#4F5166 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) | #4B5367 | 0.008 |
| Deuteranopia (no green cones) | #4A5265 | 0.008 |
| Tritanopia (no blue cones) | #4A5558 | 0.031 |
| Achromatopsia (no color) | #525252 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F5166
#4F5166
oklch(44.1% 0.035 280.6)
- #57543E
#57543E
oklch(44.2% 0.034 101.2)
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 #4F5166, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.029
- YInMn Blue #415A77 ΔE 0.036
- Dusk #4E5481 ΔE 0.044
- Slate #516572 ΔE 0.059
- Twilight #4E518B ΔE 0.062
- Dark Slate Gray #2F4F4F ΔE 0.062
- Light Navy Blue #2E5A88 ΔE 0.065
- Dark Grey Blue #29465B ΔE 0.068
Use #4F5166 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.