#684BA3
Closest named color: Rebecca Purple (#663399). oklch(48.7% 0.137 296.1), rgb(104, 75, 163).
Aa
White text reads best on this color (6.72:1).
About this color
#684BA3 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.137 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.055 away. White text reads best on it, at 6.72:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 3.12:1 |
| White text | 6.72:1 |
Values
| HEX | #684BA3 |
| RGB | rgb(104, 75, 163) |
| HSL | hsl(260, 37%, 47%) |
| OKLCH | oklch(48.7% 0.137 296.1) |
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 #684BA3 | 6.72:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #684BA3 | 3.12:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #684BA3 text on white | 6.72:1 | AA | Lc 82.9 | Fine for body text |
| #684BA3 text on black | 3.12:1 | AA large text | Lc -19.0 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE7F6
oklch(93.5% 0.021 298.2)
-
Step 200
200
#DBD5EF
oklch(88.6% 0.036 296.2)
-
Step 300
300
#C4B8E7
oklch(80.8% 0.067 296.6)
-
Step 400
400
#A693DB
oklch(70.7% 0.105 295.7)
-
Step 500
500
#9276D1
oklch(63.1% 0.135 296.5)
-
Step 600
600
#7C5DBE
oklch(55.5% 0.147 296)
-
Step 700
700 (this color)
#684BA3
oklch(48.7% 0.137 296.1)
-
Step 800
800
#563F85
oklch(42.7% 0.113 296.5)
-
Step 900
900
#46366B
oklch(37.7% 0.089 295.7)
-
Step 950
950
#29203E
oklch(27% 0.055 296.3)
#684BA3 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) | #275CA6 | 0.089 |
| Deuteranopia (no green cones) | #2F5BA1 | 0.084 |
| Tritanopia (no blue cones) | #5A5D70 | 0.108 |
| Achromatopsia (no color) | #5C5C5C | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684BA3
#684BA3
oklch(48.7% 0.137 296.1)
- #5D6700
#5D6700
oklch(48.8% 0.112 116.2)
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 #684BA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.055
- Iris #6258C4 ΔE 0.058
- Twilight #4E518B ΔE 0.061
- Bluey Purple #6241C7 ΔE 0.064
- Blueberry #464196 ΔE 0.068
- Slate Blue #6A5ACD ΔE 0.072
- Light Indigo #6D5ACF ΔE 0.075
- Dusk #4E5481 ΔE 0.076
Use #684BA3 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.