#555663
Closest named color: Dusty Grape (#545775). oklch(45.7% 0.021 282), rgb(85, 86, 99).
Aa
White text reads best on this color (7.24:1).
About this color
#555663 is a medium-dark close to neutral grey. In OKLCH its lightness is 46%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Dusty Grape (#545775), ΔE 0.029 away. White text reads best on it, at 7.24:1.
| Hue family | Neutrals |
| Lightness | medium-dark (46%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.89:1 |
| White text | 7.24:1 |
Values
| HEX | #555663 |
| RGB | rgb(85, 86, 99) |
| HSL | hsl(236, 8%, 36%) |
| OKLCH | oklch(45.7% 0.021 282) |
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 #555663 | 7.24:1 | AAA | Lc -90.1 | Preferred for body text |
| Black text on #555663 | 2.89:1 | Fails | Lc 18.8 | Dividers and decoration only |
| #555663 text on white | 7.24:1 | AAA | Lc 85.2 | Fine for body text |
| #555663 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 800.
-
Step 50
50
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E9E9EC
oklch(93.5% 0.004 286.3)
-
Step 200
200
#D8D9DE
oklch(88.6% 0.007 277.2)
-
Step 300
300
#BFC0C9
oklch(81% 0.013 281)
-
Step 400
400
#9E9FAD
oklch(70.6% 0.02 282.6)
-
Step 500
500
#878899
oklch(63.2% 0.025 283)
-
Step 600
600
#707283
oklch(55.6% 0.026 280.2)
-
Step 700
700
#5E5F6F
oklch(49% 0.025 282.6)
-
Step 800
800 (this color)
#555663
oklch(45.7% 0.021 282)
-
Step 900
900
#40414A
oklch(37.8% 0.015 280.6)
-
Step 950
950
#25262C
oklch(27% 0.011 278.1)
#555663 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) | #535764 | 0.004 |
| Deuteranopia (no green cones) | #525663 | 0.005 |
| Tritanopia (no blue cones) | #52585A | 0.019 |
| Achromatopsia (no color) | #575757 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #555663
#555663
oklch(45.7% 0.021 282)
- #59584A
#59584A
oklch(45.7% 0.022 103.9)
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 #555663, 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 0.040
- Slate #516572 ΔE 0.044
- Dusk #4E5481 ΔE 0.053
- Dim Gray #696969 ΔE 0.067
- Dark Slate Gray #2F4F4F ΔE 0.068
- Denim #3B638C ΔE 0.071
- Twilight #4E518B ΔE 0.073
Use #555663 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.