#684C78
Closest named color: Dusty Grape (#545775). oklch(46.4% 0.077 312.7), rgb(104, 76, 120).
Aa
White text reads best on this color (7.25:1).
About this color
#684C78 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.077 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.045 away. White text reads best on it, at 7.25:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.077) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.89:1 |
| White text | 7.25:1 |
Values
| HEX | #684C78 |
| RGB | rgb(104, 76, 120) |
| HSL | hsl(278, 22%, 38%) |
| OKLCH | oklch(46.4% 0.077 312.7) |
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 #684C78 | 7.25:1 | AAA | Lc -90.0 | Preferred for body text |
| Black text on #684C78 | 2.89:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #684C78 text on white | 7.25:1 | AAA | Lc 85.1 | Fine for body text |
| #684C78 text on black | 2.89:1 | Fails | Lc -16.9 | 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
#F6F4F8
oklch(97% 0.006 308.4)
-
Step 100
100
#ECE8EF
oklch(93.6% 0.01 311.2)
-
Step 200
200
#DED5E3
oklch(88.4% 0.021 313.8)
-
Step 300
300
#C9BAD2
oklch(80.9% 0.037 313)
-
Step 400
400
#AE96BC
oklch(70.7% 0.061 313)
-
Step 500
500
#997CAB
oklch(63% 0.076 312.2)
-
Step 600
600
#846596
oklch(55.6% 0.082 312.6)
-
Step 700
700 (this color)
#684C78
oklch(46.4% 0.077 312.7)
-
Step 800
800
#5B4468
oklch(42.6% 0.065 312.9)
-
Step 900
900
#4B3A55
oklch(37.8% 0.05 312.6)
-
Step 950
950
#2C2232
oklch(27.1% 0.032 312.5)
#684C78 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) | #45557A | 0.058 |
| Deuteranopia (no green cones) | #4B5777 | 0.054 |
| Tritanopia (no blue cones) | #67525C | 0.054 |
| Achromatopsia (no color) | #575757 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684C78
#684C78
oklch(46.4% 0.077 312.7)
- #486234
#486234
oklch(46.3% 0.076 132.8)
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 #684C78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.045
- Dusk #4E5481 ΔE 0.046
- Twilight #4E518B ΔE 0.051
- Muted Purple #805B87 ΔE 0.063
- Dull Purple #84597E ΔE 0.064
- Light Eggplant #894585 ΔE 0.066
- Dark Mauve #874C62 ΔE 0.067
- YInMn Blue #415A77 ΔE 0.069
Use #684C78 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.