#685ED2
Closest named color: Dark Periwinkle (#665FD1). oklch(55.2% 0.173 283.1), rgb(104, 94, 210).
Aa
White text reads best on this color (5.09:1).
About this color
#685ED2 is a medium-dark, vivid purple. In OKLCH its lightness is 55%, its chroma 0.173 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.004 away. White text reads best on it, at 5.09:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.173) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.12:1 |
| White text | 5.09:1 |
Values
| HEX | #685ED2 |
| RGB | rgb(104, 94, 210) |
| HSL | hsl(245, 56%, 60%) |
| OKLCH | oklch(55.2% 0.173 283.1) |
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 #685ED2 | 5.09:1 | AA | Lc -80.3 | Fine for body text |
| Black text on #685ED2 | 4.12:1 | AA large text | Lc 29.2 | Dividers and decoration only |
| #685ED2 text on white | 5.09:1 | AA | Lc 74.9 | Content text, not long reading |
| #685ED2 text on black | 4.12:1 | AA large text | Lc -26.9 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E8F9
oklch(93.5% 0.023 283.3)
-
Step 200
200
#D4D6F6
oklch(88.5% 0.044 282.6)
-
Step 300
300
#B9BBF2
oklch(81% 0.077 282.9)
-
Step 400
400
#9696EB
oklch(70.8% 0.123 282.8)
-
Step 500
500
#7E79E5
oklch(63.1% 0.158 283)
-
Step 600
600 (this color)
#685ED2
oklch(55.2% 0.173 283.1)
-
Step 700
700
#584EB7
oklch(49.2% 0.16 283.1)
-
Step 800
800
#484094
oklch(42.7% 0.133 283.5)
-
Step 900
900
#3B3776
oklch(37.6% 0.104 283)
-
Step 950
950
#232145
oklch(27% 0.065 283.6)
#685ED2 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) | #1472D6 | 0.084 |
| Deuteranopia (no green cones) | #016AD0 | 0.086 |
| Tritanopia (no blue cones) | #3F788F | 0.147 |
| Achromatopsia (no color) | #6E6E6E | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #685ED2
#685ED2
oklch(55.2% 0.173 283.1)
- #7F7400
#7F7400
oklch(55.2% 0.116 102.9)
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 #685ED2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.004
- Slate Blue #6A5ACD ΔE 0.012
- Light Indigo #6D5ACF ΔE 0.012
- Iris #6258C4 ΔE 0.027
- Warm Blue #4B57DB ΔE 0.048
- Royal Blue #4169E1 ΔE 0.055
- Medium Slate Blue #7B68EE ΔE 0.057
- Purpley #8756E4 ΔE 0.058
Use #685ED2 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.