#55557E
Closest named color: Dusk (#4E5481). oklch(46.7% 0.066 283.5), rgb(85, 85, 126).
Aa
White text reads best on this color (7.03:1).
About this color
#55557E is a medium-dark, muted purple. In OKLCH its lightness is 47%, its chroma 0.066 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.012 away. White text reads best on it, at 7.03:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.98:1 |
| White text | 7.03:1 |
Values
| HEX | #55557E |
| RGB | rgb(85, 85, 126) |
| HSL | hsl(240, 19%, 41%) |
| OKLCH | oklch(46.7% 0.066 283.5) |
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 #55557E | 7.03:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #55557E | 2.98:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #55557E text on white | 7.03:1 | AAA | Lc 84.3 | Fine for body text |
| #55557E text on black | 2.98:1 | Fails | Lc -17.6 | 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 700.
-
Step 50
50
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E9E9F0
oklch(93.6% 0.009 286.2)
-
Step 200
200
#D7D8E5
oklch(88.5% 0.018 282.5)
-
Step 300
300
#BDBED5
oklch(80.8% 0.032 283.7)
-
Step 400
400
#9C9DC0
oklch(70.7% 0.051 283.7)
-
Step 500
500
#8485B0
oklch(63.2% 0.064 283.4)
-
Step 600
600
#6E6E9C
oklch(55.7% 0.071 283.9)
-
Step 700
700 (this color)
#55557E
oklch(46.7% 0.066 283.5)
-
Step 800
800
#4B4B6C
oklch(42.7% 0.054 283.9)
-
Step 900
900
#3E3F58
oklch(37.8% 0.043 282.4)
-
Step 950
950
#252533
oklch(27.1% 0.026 284.5)
#55557E 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) | #495A80 | 0.021 |
| Deuteranopia (no green cones) | #48577D | 0.020 |
| Tritanopia (no blue cones) | #4B5C64 | 0.056 |
| Achromatopsia (no color) | #595959 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55557E
#55557E
oklch(46.7% 0.066 283.5)
- #605C2E
#605C2E
oklch(46.7% 0.066 104.2)
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 #55557E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.012
- Dusty Grape #545775 ΔE 0.018
- Twilight #4E518B ΔE 0.029
- YInMn Blue #415A77 ΔE 0.035
- Dusky Blue #475F94 ΔE 0.042
- Denim Blue #3B5B92 ΔE 0.045
- Denim #3B638C ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.050
Use #55557E 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.