#684C8B
Closest named color: Twilight (#4E518B). oklch(47.4% 0.103 303.2), rgb(104, 76, 139).
Aa
White text reads best on this color (7.01:1).
About this color
#684C8B is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.103 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.043 away. White text reads best on it, at 7.01:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.99:1 |
| White text | 7.01:1 |
Values
| HEX | #684C8B |
| RGB | rgb(104, 76, 139) |
| HSL | hsl(267, 29%, 42%) |
| OKLCH | oklch(47.4% 0.103 303.2) |
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 #684C8B | 7.01:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #684C8B | 2.99:1 | Fails | Lc 19.9 | Dividers and decoration only |
| #684C8B text on white | 7.01:1 | AAA | Lc 84.2 | Fine for body text |
| #684C8B text on black | 2.99:1 | Fails | Lc -17.8 | 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 700.
-
Step 50
50
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#ECE8F2
oklch(93.7% 0.014 304.1)
-
Step 200
200
#DDD5E9
oklch(88.5% 0.028 303.9)
-
Step 300
300
#C7B9DC
oklch(80.9% 0.051 303.4)
-
Step 400
400
#AB95CA
oklch(70.8% 0.08 303.4)
-
Step 500
500
#967ABC
oklch(63.1% 0.101 303.1)
-
Step 600
600
#8162A8
oklch(55.6% 0.11 303.4)
-
Step 700
700 (this color)
#684C8B
oklch(47.4% 0.103 303.2)
-
Step 800
800
#594275
oklch(42.7% 0.086 303.8)
-
Step 900
900
#49385E
oklch(37.6% 0.066 304)
-
Step 950
950
#2B2137
oklch(27% 0.042 304.6)
#684C8B 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) | #3B588D | 0.071 |
| Deuteranopia (no green cones) | #425989 | 0.065 |
| Tritanopia (no blue cones) | #625765 | 0.078 |
| Achromatopsia (no color) | #595959 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684C8B
#684C8B
oklch(47.4% 0.103 303.2)
- #516519
#516519
oklch(47.4% 0.103 123.3)
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 #684C8B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.043
- Dusk #4E5481 ΔE 0.051
- Light Eggplant #894585 ΔE 0.062
- Dusty Grape #545775 ΔE 0.062
- Muted Purple #805B87 ΔE 0.063
- Rebecca Purple #663399 ΔE 0.067
- Dusky Blue #475F94 ΔE 0.067
- Dull Purple #84597E ΔE 0.071
Use #684C8B 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.