#555173
Closest named color: Dusty Grape (#545775). oklch(45.3% 0.055 289.4), rgb(85, 81, 115).
Aa
White text reads best on this color (7.47:1).
About this color
#555173 is a medium-dark, muted purple. In OKLCH its lightness is 45%, its chroma 0.055 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.017 away. White text reads best on it, at 7.47:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.81:1 |
| White text | 7.47:1 |
Values
| HEX | #555173 |
| RGB | rgb(85, 81, 115) |
| HSL | hsl(247, 17%, 38%) |
| OKLCH | oklch(45.3% 0.055 289.4) |
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 #555173 | 7.47:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #555173 | 2.81:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #555173 text on white | 7.47:1 | AAA | Lc 86.0 | Fine for body text |
| #555173 text on black | 2.81:1 | Fails | Lc -16.1 | 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
#E9E9F0
oklch(93.6% 0.009 286.2)
-
Step 200
200
#D8D7E5
oklch(88.4% 0.019 289.3)
-
Step 300
300
#BFBED5
oklch(81% 0.032 287.7)
-
Step 400
400
#9F9CBF
oklch(70.7% 0.051 289)
-
Step 500
500
#8883AF
oklch(63.1% 0.066 289.6)
-
Step 600
600
#726C9B
oklch(55.5% 0.072 289.7)
-
Step 700
700
#605A84
oklch(49.1% 0.067 290.3)
-
Step 800
800 (this color)
#555173
oklch(45.3% 0.055 289.4)
-
Step 900
900
#413E57
oklch(37.7% 0.042 289.7)
-
Step 950
950
#262433
oklch(26.9% 0.028 290.5)
#555173 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) | #485674 | 0.023 |
| Deuteranopia (no green cones) | #485472 | 0.021 |
| Tritanopia (no blue cones) | #4E575D | 0.047 |
| Achromatopsia (no color) | #555555 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #555173
#555173
oklch(45.3% 0.055 289.4)
- #585934
#585934
oklch(45.3% 0.055 109.7)
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 #555173, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.017
- Dusk #4E5481 ΔE 0.024
- YInMn Blue #415A77 ΔE 0.036
- Twilight #4E518B ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.058
- Denim Blue #3B5B92 ΔE 0.059
- Dusky Blue #475F94 ΔE 0.060
- Slate #516572 ΔE 0.061
Use #555173 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.