#684C81
Closest named color: Twilight (#4E518B). oklch(46.9% 0.089 307.6), rgb(104, 76, 129).
Aa
White text reads best on this color (7.14:1).
About this color
#684C81 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.089 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.045 away. White text reads best on it, at 7.14:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.089) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.93:1 |
| White text | 7.14:1 |
Values
| HEX | #684C81 |
| RGB | rgb(104, 76, 129) |
| HSL | hsl(272, 26%, 40%) |
| OKLCH | oklch(46.9% 0.089 307.6) |
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 #684C81 | 7.14:1 | AAA | Lc -89.6 | Fine for body text |
| Black text on #684C81 | 2.93:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #684C81 text on white | 7.14:1 | AAA | Lc 84.7 | Fine for body text |
| #684C81 text on black | 2.93:1 | Fails | Lc -17.3 | 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
#ECE8F0
oklch(93.6% 0.011 308.3)
-
Step 200
200
#DDD5E6
oklch(88.4% 0.025 306.9)
-
Step 300
300
#C8BAD7
oklch(81% 0.043 307.1)
-
Step 400
400
#AC96C2
oklch(70.8% 0.067 307.4)
-
Step 500
500
#987BB3
oklch(63.1% 0.088 307.7)
-
Step 600
600
#83639F
oklch(55.6% 0.097 308)
-
Step 700
700 (this color)
#684C81
oklch(46.9% 0.089 307.6)
-
Step 800
800
#5A446E
oklch(42.8% 0.073 307.6)
-
Step 900
900
#4A3959
oklch(37.7% 0.057 308.2)
-
Step 950
950
#2B2234
oklch(27% 0.035 307)
#684C81 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) | #415783 | 0.064 |
| Deuteranopia (no green cones) | #475880 | 0.059 |
| Tritanopia (no blue cones) | #655460 | 0.065 |
| Achromatopsia (no color) | #585858 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684C81
#684C81
oklch(46.9% 0.089 307.6)
- #4C6429
#4C6429
oklch(47% 0.09 127.9)
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 #684C81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.045
- Dusk #4E5481 ΔE 0.046
- Dusty Grape #545775 ΔE 0.051
- Muted Purple #805B87 ΔE 0.062
- Light Eggplant #894585 ΔE 0.062
- Dull Purple #84597E ΔE 0.066
- Dusky Blue #475F94 ΔE 0.069
- Dusty Purple #825F87 ΔE 0.072
Use #684C81 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.