#684FA0
Closest named color: Twilight (#4E518B). oklch(49.2% 0.127 295.6), rgb(104, 79, 160).
Aa
White text reads best on this color (6.53:1).
About this color
#684FA0 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.127 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.055 away. White text reads best on it, at 6.53:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.21:1 |
| White text | 6.53:1 |
Values
| HEX | #684FA0 |
| RGB | rgb(104, 79, 160) |
| HSL | hsl(259, 34%, 47%) |
| OKLCH | oklch(49.2% 0.127 295.6) |
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 #684FA0 | 6.53:1 | AA | Lc -87.3 | Fine for body text |
| Black text on #684FA0 | 3.21:1 | AA large text | Lc 21.9 | Dividers and decoration only |
| #684FA0 text on white | 6.53:1 | AA | Lc 82.2 | Fine for body text |
| #684FA0 text on black | 3.21:1 | 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
#DAD5EE
oklch(88.5% 0.034 294.9)
-
Step 300
300
#C3B9E5
oklch(80.9% 0.062 295.4)
-
Step 400
400
#A594D7
oklch(70.6% 0.098 295.4)
-
Step 500
500
#9078CC
oklch(63% 0.125 295.8)
-
Step 600
600
#7B60B9
oklch(55.6% 0.135 295.7)
-
Step 700
700 (this color)
#684FA0
oklch(49.2% 0.127 295.6)
-
Step 800
800
#544181
oklch(42.7% 0.104 295.3)
-
Step 900
900
#453768
oklch(37.6% 0.083 295.3)
-
Step 950
950
#29213D
oklch(27.1% 0.052 295.9)
#684FA0 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) | #325EA3 | 0.078 |
| Deuteranopia (no green cones) | #375C9E | 0.073 |
| Tritanopia (no blue cones) | #5B5F70 | 0.101 |
| Achromatopsia (no color) | #5E5E5E | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684FA0
#684FA0
oklch(49.2% 0.127 295.6)
- #5F6800
#5F6800
oklch(49.3% 0.112 115.5)
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 #684FA0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.055
- Iris #6258C4 ΔE 0.059
- Rebecca Purple #663399 ΔE 0.065
- Dusky Blue #475F94 ΔE 0.067
- Dusk #4E5481 ΔE 0.069
- Blueberry #464196 ΔE 0.072
- Muted Purple #805B87 ΔE 0.073
- Slate Blue #6A5ACD ΔE 0.073
Use #684FA0 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.