#686AF5
Closest named color: Medium Slate Blue (#7B68EE). oklch(59.9% 0.203 277.7), rgb(104, 106, 245).
Aa
Black text reads best on this color (4.96:1).
About this color
#686AF5 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.203 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.029 away. Black text reads best on it, at 4.96:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.203) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.96:1 |
| White text | 4.22:1 |
Values
| HEX | #686AF5 |
| RGB | rgb(104, 106, 245) |
| HSL | hsl(239, 88%, 68%) |
| OKLCH | oklch(59.9% 0.203 277.7) |
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 #686AF5 | 4.22:1 | AA large text | Lc -74.3 | Content text, not long reading |
| Black text on #686AF5 | 4.96:1 | AA | Lc 35.3 | Non-text elements, placeholder text |
| #686AF5 text on white | 4.22:1 | AA large text | Lc 68.8 | Content text, not long reading |
| #686AF5 text on black | 4.96:1 | AA | Lc -32.9 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E5E9FE
oklch(93.7% 0.029 277.2)
-
Step 200
200
#D0D6FE
oklch(88.4% 0.055 278.5)
-
Step 300
300
#B1BBFF
oklch(80.9% 0.097 277.5)
-
Step 400
400
#8B94FF
oklch(70.6% 0.155 278)
-
Step 500
500 (this color)
#686AF5
oklch(59.9% 0.203 277.7)
-
Step 600
600
#5C58F0
oklch(55.7% 0.221 277.6)
-
Step 700
700
#4D46D1
oklch(49.1% 0.206 277.9)
-
Step 800
800
#3E3BA9
oklch(42.7% 0.171 277.6)
-
Step 900
900
#343486
oklch(37.7% 0.134 277.8)
-
Step 950
950
#1E204E
oklch(27.1% 0.083 277.4)
#686AF5 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) | #0081FA | 0.081 |
| Deuteranopia (no green cones) | #0075F2 | 0.075 |
| Tritanopia (no blue cones) | #008BA5 | 0.177 |
| Achromatopsia (no color) | #7B7B7B | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #686AF5
#686AF5
oklch(59.9% 0.203 277.7)
- #947F00
#947F00
oklch(59.8% 0.123 97.5)
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 #686AF5, closest first.
No curated palette has a color within ΔE 0.04 of #686AF5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.029
- Cornflower #6A79F7 ΔE 0.036
- Neon Blue #4361EE ΔE 0.054
- Royal Blue #4169E1 ΔE 0.057
- Dark Periwinkle #665FD1 ΔE 0.059
- Purpley #8756E4 ΔE 0.065
- Light Indigo #6D5ACF ΔE 0.066
- Clear Blue #247AFD ΔE 0.067
Use #686AF5 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.