#555378
Closest named color: Dusty Grape (#545775). oklch(46% 0.06 286.3), rgb(85, 83, 120).
Aa
White text reads best on this color (7.25:1).
About this color
#555378 is a medium-dark, muted purple. In OKLCH its lightness is 46%, its chroma 0.060 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.014 away. White text reads best on it, at 7.25:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.89:1 |
| White text | 7.25:1 |
Values
| HEX | #555378 |
| RGB | rgb(85, 83, 120) |
| HSL | hsl(243, 18%, 40%) |
| OKLCH | oklch(46% 0.06 286.3) |
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 #555378 | 7.25:1 | AAA | Lc -90.1 | Preferred for body text |
| Black text on #555378 | 2.89:1 | Fails | Lc 18.8 | Dividers and decoration only |
| #555378 text on white | 7.25:1 | AAA | Lc 85.2 | Fine for body text |
| #555378 text on black | 2.89:1 | Fails | Lc -16.8 | 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 700.
-
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
#D8D8E4
oklch(88.6% 0.016 286.1)
-
Step 300
300
#BFBED3
oklch(80.9% 0.029 287.9)
-
Step 400
400
#9E9DBD
oklch(70.8% 0.046 286.6)
-
Step 500
500
#8685AC
oklch(63.2% 0.058 285.8)
-
Step 600
600
#706E98
oklch(55.6% 0.065 286.3)
-
Step 700
700 (this color)
#555378
oklch(46% 0.06 286.3)
-
Step 800
800
#4C4B69
oklch(42.6% 0.049 285.6)
-
Step 900
900
#403F55
oklch(37.8% 0.037 286.5)
-
Step 950
950
#252532
oklch(27% 0.024 284.7)
#555378 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) | #49587A | 0.021 |
| Deuteranopia (no green cones) | #485677 | 0.021 |
| Tritanopia (no blue cones) | #4D5A60 | 0.053 |
| Achromatopsia (no color) | #575757 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #555378
#555378
oklch(46% 0.06 286.3)
- #5C5A31
#5C5A31
oklch(45.9% 0.06 106.1)
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 #555378, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.014
- Dusk #4E5481 ΔE 0.017
- YInMn Blue #415A77 ΔE 0.034
- Twilight #4E518B ΔE 0.035
- Dusky Blue #475F94 ΔE 0.052
- Denim Blue #3B5B92 ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.053
- Denim #3B638C ΔE 0.056
Use #555378 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.