#684381
Closest named color: Twilight (#4E518B). oklch(45.2% 0.106 310.3), rgb(104, 67, 129).
Aa
White text reads best on this color (7.75:1).
About this color
#684381 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.106 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.054 away. White text reads best on it, at 7.75:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.70:1 |
| White text | 7.75:1 |
Values
| HEX | #684381 |
| RGB | rgb(104, 67, 129) |
| HSL | hsl(276, 32%, 38%) |
| OKLCH | oklch(45.2% 0.106 310.3) |
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 #684381 | 7.75:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #684381 | 2.70:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #684381 text on white | 7.75:1 | AAA | Lc 86.7 | Fine for body text |
| #684381 text on black | 2.70:1 | Fails | Lc -15.4 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EDE7F3
oklch(93.6% 0.017 308.3)
-
Step 200
200
#E0D3EA
oklch(88.4% 0.034 310.7)
-
Step 300
300
#CDB6DF
oklch(80.9% 0.062 310.2)
-
Step 400
400
#B48FCF
oklch(70.7% 0.1 310.3)
-
Step 500
500
#A172C2
oklch(63.1% 0.126 310.2)
-
Step 600
600
#8C59AE
oklch(55.6% 0.137 310.3)
-
Step 700
700
#774996
oklch(49.2% 0.127 310.1)
-
Step 800
800 (this color)
#684381
oklch(45.2% 0.106 310.3)
-
Step 900
900
#4F3462
oklch(37.7% 0.082 310)
-
Step 950
950
#2E1F39
oklch(27% 0.051 309.8)
#684381 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) | #355183 | 0.084 |
| Deuteranopia (no green cones) | #3F537F | 0.076 |
| Tritanopia (no blue cones) | #654D5C | 0.074 |
| Achromatopsia (no color) | #525252 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684381
#684381
oklch(45.2% 0.106 310.3)
- #416119
#416119
oklch(45.2% 0.106 130.5)
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 #684381, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.054
- Rebecca Purple #663399 ΔE 0.058
- Dusk #4E5481 ΔE 0.060
- Light Eggplant #894585 ΔE 0.064
- Dark Slate Blue #483D8B ΔE 0.064
- Dusty Grape #545775 ΔE 0.070
- Blueberry #464196 ΔE 0.070
- Muted Purple #805B87 ΔE 0.080
Use #684381 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.