#685AF0
Closest named color: Medium Slate Blue (#7B68EE). oklch(56.8% 0.216 281.2), rgb(104, 90, 240).
Aa
White text reads best on this color (4.87:1).
About this color
#685AF0 is a medium-dark, vivid purple. In OKLCH its lightness is 57%, its chroma 0.216 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.045 away. White text reads best on it, at 4.87:1.
| Hue family | Purples |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.216) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.30:1 |
| White text | 4.87:1 |
Values
| HEX | #685AF0 |
| RGB | rgb(104, 90, 240) |
| HSL | hsl(246, 83%, 65%) |
| OKLCH | oklch(56.8% 0.216 281.2) |
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 #685AF0 | 4.87:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #685AF0 | 4.30:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #685AF0 text on white | 4.87:1 | AA | Lc 73.3 | Content text, not long reading |
| #685AF0 text on black | 4.30:1 | AA large text | Lc -28.4 | 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
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E6E8FD
oklch(93.6% 0.028 281.5)
-
Step 200
200
#D2D6FD
oklch(88.5% 0.054 280.6)
-
Step 300
300
#B5BAFF
oklch(81% 0.097 280.8)
-
Step 400
400
#9192FE
oklch(70.6% 0.156 281.2)
-
Step 500
500
#7973FD
oklch(63.2% 0.199 281)
-
Step 600
600 (this color)
#685AF0
oklch(56.8% 0.216 281.2)
-
Step 700
700
#5445CD
oklch(49.1% 0.201 281)
-
Step 800
800
#453AA6
oklch(42.8% 0.167 281.3)
-
Step 900
900
#393383
oklch(37.6% 0.13 281.5)
-
Step 950
950
#211F4D
oklch(27% 0.082 281.3)
#685AF0 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) | #0076F5 | 0.091 |
| Deuteranopia (no green cones) | #006CED | 0.085 |
| Tritanopia (no blue cones) | #1A7F9D | 0.184 |
| Achromatopsia (no color) | #717171 | 0.217 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #685AF0
#685AF0
oklch(56.8% 0.216 281.2)
- #867800
#867800
oklch(56.8% 0.119 101.2)
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 #685AF0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.045
- Neon Blue #4361EE ΔE 0.047
- Dark Periwinkle #665FD1 ΔE 0.049
- Light Indigo #6D5ACF ΔE 0.051
- Warm Blue #4B57DB ΔE 0.053
- Purpley #8756E4 ΔE 0.054
- Slate Blue #6A5ACD ΔE 0.054
- Royal Blue #4169E1 ΔE 0.060
Use #685AF0 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.