#684F9F
Closest named color: Twilight (#4E518B). oklch(49.2% 0.125 295.9), rgb(104, 79, 159).
Aa
White text reads best on this color (6.54:1).
About this color
#684F9F is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.125 and its hue 296°. 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 6.54:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.125) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.20:1 |
| White text | 6.54:1 |
Values
| HEX | #684F9F |
| RGB | rgb(104, 79, 159) |
| HSL | hsl(259, 34%, 47%) |
| OKLCH | oklch(49.2% 0.125 295.9) |
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 #684F9F | 6.54:1 | AA | Lc -87.3 | Fine for body text |
| Black text on #684F9F | 3.20:1 | AA large text | Lc 21.8 | Dividers and decoration only |
| #684F9F text on white | 6.54:1 | AA | Lc 82.2 | Fine for body text |
| #684F9F text on black | 3.20:1 | AA large text | Lc -19.7 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EAE8F5
oklch(93.6% 0.018 293.1)
-
Step 200
200
#DBD5ED
oklch(88.5% 0.033 297.2)
-
Step 300
300
#C3B9E4
oklch(80.8% 0.061 295.7)
-
Step 400
400
#A694D7
oklch(70.7% 0.098 296.1)
-
Step 500
500
#9078CC
oklch(63% 0.125 295.8)
-
Step 600
600
#7B60B8
oklch(55.6% 0.134 295.9)
-
Step 700
700 (this color)
#684F9F
oklch(49.2% 0.125 295.9)
-
Step 800
800
#554181
oklch(42.8% 0.104 296.1)
-
Step 900
900
#463867
oklch(37.8% 0.079 296.1)
-
Step 950
950
#29213D
oklch(27.1% 0.052 295.9)
#684F9F 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) | #325EA2 | 0.078 |
| Deuteranopia (no green cones) | #385C9D | 0.073 |
| Tritanopia (no blue cones) | #5C5E6F | 0.099 |
| Achromatopsia (no color) | #5D5D5D | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684F9F
#684F9F
oklch(49.2% 0.125 295.9)
- #5E6800
#5E6800
oklch(49.2% 0.113 116.2)
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 #684F9F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.054
- Iris #6258C4 ΔE 0.060
- Rebecca Purple #663399 ΔE 0.065
- Dusky Blue #475F94 ΔE 0.067
- Dusk #4E5481 ΔE 0.068
- Blueberry #464196 ΔE 0.071
- Muted Purple #805B87 ΔE 0.072
- Light Eggplant #894585 ΔE 0.073
Use #684F9F 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.