#555371
Closest named color: Dusty Grape (#545775). oklch(45.6% 0.049 287.4), rgb(85, 83, 113).
Aa
White text reads best on this color (7.33:1).
About this color
#555371 is a medium-dark, muted purple. In OKLCH its lightness is 46%, its chroma 0.049 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.012 away. White text reads best on it, at 7.33:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.86:1 |
| White text | 7.33:1 |
Values
| HEX | #555371 |
| RGB | rgb(85, 83, 113) |
| HSL | hsl(244, 15%, 38%) |
| OKLCH | oklch(45.6% 0.049 287.4) |
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 #555371 | 7.33:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #555371 | 2.86:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #555371 text on white | 7.33:1 | AAA | Lc 85.5 | Fine for body text |
| #555371 text on black | 2.86:1 | Fails | Lc -16.5 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E9E9EF
oklch(93.6% 0.008 286.2)
-
Step 200
200
#D8D8E3
oklch(88.5% 0.015 286.1)
-
Step 300
300
#BFBED3
oklch(80.9% 0.029 287.9)
-
Step 400
400
#9E9DBC
oklch(70.7% 0.045 286.7)
-
Step 500
500
#8784AB
oklch(63% 0.058 288.1)
-
Step 600
600
#716E97
oklch(55.7% 0.063 287.5)
-
Step 700
700
#5E5C81
oklch(49.2% 0.059 286.5)
-
Step 800
800 (this color)
#555371
oklch(45.6% 0.049 287.4)
-
Step 900
900
#403F55
oklch(37.8% 0.037 286.5)
-
Step 950
950
#252532
oklch(27% 0.024 284.7)
#555371 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) | #4B5772 | 0.018 |
| Deuteranopia (no green cones) | #4B5570 | 0.016 |
| Tritanopia (no blue cones) | #4F585D | 0.042 |
| Achromatopsia (no color) | #565656 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #555371
#555371
oklch(45.6% 0.049 287.4)
- #5A5939
#5A5939
oklch(45.6% 0.048 106.6)
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 #555371, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.012
- Dusk #4E5481 ΔE 0.027
- YInMn Blue #415A77 ΔE 0.032
- Twilight #4E518B ΔE 0.046
- Slate #516572 ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.058
- Dusky Blue #475F94 ΔE 0.060
- Denim #3B638C ΔE 0.060
Use #555371 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.