#684FE5
Closest named color: Light Indigo (#6D5ACF). oklch(54.3% 0.216 284.2), rgb(104, 79, 229).
Aa
White text reads best on this color (5.47:1).
About this color
#684FE5 is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.216 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.043 away. White text reads best on it, at 5.47:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.216) |
| Temperature | cool |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.83:1 |
| White text | 5.47:1 |
Values
| HEX | #684FE5 |
| RGB | rgb(104, 79, 229) |
| HSL | hsl(250, 74%, 60%) |
| OKLCH | oklch(54.3% 0.216 284.2) |
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 #684FE5 | 5.47:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #684FE5 | 3.83:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #684FE5 text on white | 5.47:1 | AA | Lc 76.7 | Fine for body text |
| #684FE5 text on black | 3.83:1 | AA large text | Lc -25.0 | 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 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
#D4D5FC
oklch(88.5% 0.053 284.1)
-
Step 300
300
#B9B8FE
oklch(80.9% 0.098 284.6)
-
Step 400
400
#9791FD
oklch(70.8% 0.155 284.2)
-
Step 500
500
#8070FB
oklch(63.1% 0.2 284.3)
-
Step 600
600 (this color)
#684FE5
oklch(54.3% 0.216 284.2)
-
Step 700
700
#5A42CB
oklch(49% 0.201 284.2)
-
Step 800
800
#4938A4
oklch(42.6% 0.166 284)
-
Step 900
900
#3C3282
oklch(37.6% 0.129 284)
-
Step 950
950
#231E4C
oklch(26.9% 0.082 284.4)
#684FE5 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) | #006EEA | 0.099 |
| Deuteranopia (no green cones) | #0064E2 | 0.093 |
| Tritanopia (no blue cones) | #2E7593 | 0.181 |
| Achromatopsia (no color) | #696969 | 0.217 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684FE5
#684FE5
oklch(54.3% 0.216 284.2)
- #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 #684FE5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.043
- Slate Blue #6A5ACD ΔE 0.045
- Warm Blue #4B57DB ΔE 0.045
- Dark Periwinkle #665FD1 ΔE 0.047
- Burple #6832E3 ΔE 0.050
- Purpley Blue #5F34E7 ΔE 0.051
- Iris #6258C4 ΔE 0.055
- Bluey Purple #6241C7 ΔE 0.056
Use #684FE5 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.