#5B5366
Closest named color: Dusty Grape (#545775). oklch(45.7% 0.032 304.3), rgb(91, 83, 102).
Aa
White text reads best on this color (7.30:1).
About this color
#5B5366 is a medium-dark, muted purple. In OKLCH its lightness is 46%, its chroma 0.032 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.025 away. White text reads best on it, at 7.30:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.032) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.87:1 |
| White text | 7.30:1 |
Values
| HEX | #5B5366 |
| RGB | rgb(91, 83, 102) |
| HSL | hsl(265, 10%, 36%) |
| OKLCH | oklch(45.7% 0.032 304.3) |
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 #5B5366 | 7.30:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #5B5366 | 2.87:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #5B5366 text on white | 7.30:1 | AAA | Lc 85.4 | Fine for body text |
| #5B5366 text on black | 2.87:1 | Fails | Lc -16.6 | 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
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#EAE9ED
oklch(93.6% 0.005 297.7)
-
Step 200
200
#DAD7DF
oklch(88.4% 0.011 303.1)
-
Step 300
300
#C3BECB
oklch(80.9% 0.019 303.4)
-
Step 400
400
#A49CB0
oklch(70.6% 0.03 303.7)
-
Step 500
500
#8E849D
oklch(63.1% 0.039 303.5)
-
Step 600
600
#796E87
oklch(55.7% 0.04 305.1)
-
Step 700
700
#655B73
oklch(49% 0.04 303.9)
-
Step 800
800 (this color)
#5B5366
oklch(45.7% 0.032 304.3)
-
Step 900
900
#443E4D
oklch(37.6% 0.026 303.3)
-
Step 950
950
#28252D
oklch(27.1% 0.015 302.4)
#5B5366 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) | #505667 | 0.018 |
| Deuteranopia (no green cones) | #515665 | 0.018 |
| Tritanopia (no blue cones) | #595559 | 0.025 |
| Achromatopsia (no color) | #565656 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B5366
#5B5366
oklch(45.7% 0.032 304.3)
- #535A47
#535A47
oklch(45.6% 0.031 124.1)
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 #5B5366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.025
- YInMn Blue #415A77 ΔE 0.044
- Dusk #4E5481 ΔE 0.047
- Slate #516572 ΔE 0.052
- Brownish Purple #76424E ΔE 0.065
- Twilight #4E518B ΔE 0.066
- Dim Gray #696969 ΔE 0.071
- Denim #3B638C ΔE 0.074
Use #5B5366 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.