#555779
Closest named color: Dusty Grape (#545775). oklch(46.9% 0.055 281.4), rgb(85, 87, 121).
Aa
White text reads best on this color (6.94:1).
About this color
#555779 is a medium-dark, muted purple. In OKLCH its lightness is 47%, its chroma 0.055 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.007 away. White text reads best on it, at 6.94:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.02:1 |
| White text | 6.94:1 |
Values
| HEX | #555779 |
| RGB | rgb(85, 87, 121) |
| HSL | hsl(237, 17%, 40%) |
| OKLCH | oklch(46.9% 0.055 281.4) |
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 #555779 | 6.94:1 | AA | Lc -89.0 | Fine for body text |
| Black text on #555779 | 3.02:1 | AA large text | Lc 20.0 | Dividers and decoration only |
| #555779 text on white | 6.94:1 | AA | Lc 84.0 | Fine for body text |
| #555779 text on black | 3.02:1 | AA large text | Lc -18.0 | 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
#D7D8E3
oklch(88.5% 0.015 281.9)
-
Step 300
300
#BDBFD2
oklch(80.9% 0.027 281)
-
Step 400
400
#9B9EBB
oklch(70.7% 0.042 280.6)
-
Step 500
500
#8386AA
oklch(63.1% 0.054 281)
-
Step 600
600
#6D6F96
oklch(55.5% 0.06 282)
-
Step 700
700 (this color)
#555779
oklch(46.9% 0.055 281.4)
-
Step 800
800
#4A4C68
oklch(42.6% 0.046 281.1)
-
Step 900
900
#3E4054
oklch(37.8% 0.034 280.2)
-
Step 950
950
#242531
oklch(26.9% 0.022 281.1)
#555779 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) | #4D5B7A | 0.015 |
| Deuteranopia (no green cones) | #4C5878 | 0.014 |
| Tritanopia (no blue cones) | #4C5D63 | 0.048 |
| Achromatopsia (no color) | #5A5A5A | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #555779
#555779
oklch(46.9% 0.055 281.4)
- #615C37
#615C37
oklch(47% 0.055 101.6)
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 #555779, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.007
- Dusk #4E5481 ΔE 0.021
- YInMn Blue #415A77 ΔE 0.029
- Twilight #4E518B ΔE 0.040
- Dusky Blue #475F94 ΔE 0.046
- Slate #516572 ΔE 0.047
- Denim #3B638C ΔE 0.048
- Denim Blue #3B5B92 ΔE 0.050
Use #555779 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.