#684FD7
Closest named color: Light Indigo (#6D5ACF). oklch(53.1% 0.199 285.9), rgb(104, 79, 215).
Aa
White text reads best on this color (5.69:1).
About this color
#684FD7 is a medium-dark, vivid purple. In OKLCH its lightness is 53%, its chroma 0.199 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.030 away. White text reads best on it, at 5.69:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.199) |
| Temperature | cool |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.68:1 |
| White text | 5.69:1 |
Values
| HEX | #684FD7 |
| RGB | rgb(104, 79, 215) |
| HSL | hsl(251, 63%, 58%) |
| OKLCH | oklch(53.1% 0.199 285.9) |
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 #684FD7 | 5.69:1 | AA | Lc -83.3 | Fine for body text |
| Black text on #684FD7 | 3.68:1 | AA large text | Lc 26.1 | Dividers and decoration only |
| #684FD7 text on white | 5.69:1 | AA | Lc 78.0 | Fine for body text |
| #684FD7 text on black | 3.68:1 | AA large text | Lc -23.8 | 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
#F4F4FD
oklch(97% 0.012 286.2)
-
Step 100
100
#E8E8FB
oklch(93.7% 0.026 285.9)
-
Step 200
200
#D5D5F9
oklch(88.4% 0.049 285.3)
-
Step 300
300
#BBB9F8
oklch(81% 0.088 285.7)
-
Step 400
400
#9A91F5
oklch(70.6% 0.144 286.2)
-
Step 500
500
#8373F1
oklch(63.2% 0.182 285.7)
-
Step 600
600 (this color)
#684FD7
oklch(53.1% 0.199 285.9)
-
Step 700
700
#5D46C2
oklch(49.1% 0.185 285.9)
-
Step 800
800
#4C3A9D
oklch(42.7% 0.154 286.3)
-
Step 900
900
#3E347D
oklch(37.8% 0.119 285.4)
-
Step 950
950
#241F49
oklch(27% 0.075 285.6)
#684FD7 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) | #006ADB | 0.099 |
| Deuteranopia (no green cones) | #0063D4 | 0.096 |
| Tritanopia (no blue cones) | #3D708C | 0.165 |
| Achromatopsia (no color) | #676767 | 0.199 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #684FD7
#684FD7
oklch(53.1% 0.199 285.9)
- #756F00
#756F00
oklch(53% 0.113 105.9)
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 #684FD7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.030
- Slate Blue #6A5ACD ΔE 0.030
- Iris #6258C4 ΔE 0.037
- Dark Periwinkle #665FD1 ΔE 0.037
- Bluey Purple #6241C7 ΔE 0.040
- Warm Blue #4B57DB ΔE 0.044
- Burple #6832E3 ΔE 0.053
- Purpley Blue #5F34E7 ΔE 0.057
Use #684FD7 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.