#6858EC
Closest named color: Dark Periwinkle (#665FD1). oklch(56.2% 0.214 281.9), rgb(104, 88, 236).
Aa
White text reads best on this color (5.00:1).
About this color
#6858EC is a medium-dark, vivid purple. In OKLCH its lightness is 56%, its chroma 0.214 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.045 away. White text reads best on it, at 5.00:1.
| Hue family | Purples |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.214) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.19:1 |
| White text | 5.00:1 |
Values
| HEX | #6858EC |
| RGB | rgb(104, 88, 236) |
| HSL | hsl(246, 80%, 64%) |
| OKLCH | oklch(56.2% 0.214 281.9) |
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 #6858EC | 5.00:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #6858EC | 4.19:1 | AA large text | Lc 30.0 | Dividers and decoration only |
| #6858EC text on white | 5.00:1 | AA | Lc 74.1 | Content text, not long reading |
| #6858EC text on black | 4.19:1 | AA large text | Lc -27.6 | 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
#D3D6FC
oklch(88.6% 0.052 281.7)
-
Step 300
300
#B6B9FE
oklch(80.8% 0.097 282.1)
-
Step 400
400
#9392FD
oklch(70.7% 0.154 282.1)
-
Step 500
500
#7B72FB
oklch(63% 0.198 282.1)
-
Step 600
600 (this color)
#6858EC
oklch(56.2% 0.214 281.9)
-
Step 700
700
#5645CB
oklch(49.1% 0.198 282)
-
Step 800
800
#463AA4
oklch(42.7% 0.164 282.1)
-
Step 900
900
#3A3382
oklch(37.6% 0.128 282.3)
-
Step 950
950
#211F4C
oklch(26.9% 0.081 281.5)
#6858EC 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) | #0074F1 | 0.092 |
| Deuteranopia (no green cones) | #006AE9 | 0.087 |
| Tritanopia (no blue cones) | #227D9A | 0.182 |
| Achromatopsia (no color) | #6F6F6F | 0.215 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6858EC
#6858EC
oklch(56.2% 0.214 281.9)
- #837700
#837700
oklch(56.3% 0.118 102.4)
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 #6858EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.045
- Light Indigo #6D5ACF ΔE 0.046
- Slate Blue #6A5ACD ΔE 0.048
- Neon Blue #4361EE ΔE 0.048
- Medium Slate Blue #7B68EE ΔE 0.049
- Warm Blue #4B57DB ΔE 0.049
- Purpley #8756E4 ΔE 0.052
- Royal Blue #4169E1 ΔE 0.060
Use #6858EC 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.