#686BDC
Closest named color: Dark Periwinkle (#665FD1). oklch(58.3% 0.169 278.6), rgb(104, 107, 220).
Aa
Black text reads best on this color (4.72:1).
About this color
#686BDC is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.169 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.033 away. Black text reads best on it, at 4.72:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.72:1 |
| White text | 4.44:1 |
Values
| HEX | #686BDC |
| RGB | rgb(104, 107, 220) |
| HSL | hsl(238, 62%, 64%) |
| OKLCH | oklch(58.3% 0.169 278.6) |
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 #686BDC | 4.44:1 | AA large text | Lc -76.1 | Fine for body text |
| Black text on #686BDC | 4.72:1 | AA | Lc 33.5 | Non-text elements, placeholder text |
| #686BDC text on white | 4.44:1 | AA large text | Lc 70.6 | Content text, not long reading |
| #686BDC text on black | 4.72:1 | AA | Lc -31.1 | 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 600.
-
Step 50
50
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D2D7F5
oklch(88.5% 0.042 278)
-
Step 300
300
#B5BCF2
oklch(80.9% 0.077 278.8)
-
Step 400
400
#9098EB
oklch(70.7% 0.121 278.6)
-
Step 500
500
#767CE5
oklch(63.1% 0.156 278.5)
-
Step 600
600 (this color)
#686BDC
oklch(58.3% 0.169 278.6)
-
Step 700
700
#5051B7
oklch(49.1% 0.157 278.5)
-
Step 800
800
#424394
oklch(42.8% 0.13 278.8)
-
Step 900
900
#373976
oklch(37.6% 0.102 278.9)
-
Step 950
950
#202245
oklch(27% 0.064 278.7)
#686BDC 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) | #307CE0 | 0.065 |
| Deuteranopia (no green cones) | #2073DA | 0.069 |
| Tritanopia (no blue cones) | #348499 | 0.147 |
| Achromatopsia (no color) | #787878 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #686BDC
#686BDC
oklch(58.3% 0.169 278.6)
- #8E7B00
#8E7B00
oklch(58.3% 0.121 98.4)
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 #686BDC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.033
- Medium Slate Blue #7B68EE ΔE 0.040
- Light Indigo #6D5ACF ΔE 0.043
- Slate Blue #6A5ACD ΔE 0.044
- Royal Blue #4169E1 ΔE 0.049
- Cornflower #6A79F7 ΔE 0.051
- Iris #6258C4 ΔE 0.058
- Neon Blue #4361EE ΔE 0.062
Use #686BDC 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.