#684FE6
Closest named color: Light Indigo (#6D5ACF). oklch(54.3% 0.217 284.1), rgb(104, 79, 230).
Aa
White text reads best on this color (5.45:1).
About this color
#684FE6 is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.217 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.045 away. White text reads best on it, at 5.45:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.217) |
| Temperature | cool |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.84:1 |
| White text | 5.45:1 |
Values
| HEX | #684FE6 |
| RGB | rgb(104, 79, 230) |
| HSL | hsl(250, 75%, 61%) |
| OKLCH | oklch(54.3% 0.217 284.1) |
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 #684FE6 | 5.45:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #684FE6 | 3.84:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #684FE6 text on white | 5.45:1 | AA | Lc 76.6 | Fine for body text |
| #684FE6 text on black | 3.84:1 | AA large text | Lc -25.1 | 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 600.
-
Step 50
50
#F4F4FE
oklch(97% 0.013 286.1)
-
Step 100
100
#E7E8FD
oklch(93.7% 0.028 283.7)
-
Step 200
200
#D4D5FD
oklch(88.5% 0.055 284.1)
-
Step 300
300
#B9B8FE
oklch(80.9% 0.098 284.6)
-
Step 400
400
#9690FD
oklch(70.6% 0.156 284.1)
-
Step 500
500
#7F70FB
oklch(63% 0.2 284)
-
Step 600
600 (this color)
#684FE6
oklch(54.3% 0.217 284.1)
-
Step 700
700
#5A42CC
oklch(49.1% 0.202 284)
-
Step 800
800
#4938A5
oklch(42.7% 0.167 283.9)
-
Step 900
900
#3C3283
oklch(37.7% 0.131 283.8)
-
Step 950
950
#231E4C
oklch(26.9% 0.082 284.4)
#684FE6 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) | #006EEB | 0.099 |
| Deuteranopia (no green cones) | #0065E3 | 0.093 |
| Tritanopia (no blue cones) | #2D7594 | 0.181 |
| Achromatopsia (no color) | #696969 | 0.218 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684FE6
#684FE6
oklch(54.3% 0.217 284.1)
- #7B7200
#7B7200
oklch(54.3% 0.115 104.1)
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 #684FE6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.045
- Warm Blue #4B57DB ΔE 0.046
- Slate Blue #6A5ACD ΔE 0.046
- Dark Periwinkle #665FD1 ΔE 0.048
- Burple #6832E3 ΔE 0.050
- Purpley Blue #5F34E7 ΔE 0.051
- Purpley #8756E4 ΔE 0.056
- Iris #6258C4 ΔE 0.057
Use #684FE6 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.