#6863CB
Closest named color: Dark Periwinkle (#665FD1). oklch(55.7% 0.156 282.2), rgb(104, 99, 203).
Aa
White text reads best on this color (4.95:1).
About this color
#6863CB is a medium-dark, vivid purple. In OKLCH its lightness is 56%, its chroma 0.156 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.015 away. White text reads best on it, at 4.95:1.
| Hue family | Purples |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.156) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.23:1 |
| White text | 4.95:1 |
Values
| HEX | #6863CB |
| RGB | rgb(104, 99, 203) |
| HSL | hsl(243, 50%, 59%) |
| OKLCH | oklch(55.7% 0.156 282.2) |
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 #6863CB | 4.95:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #6863CB | 4.23:1 | AA large text | Lc 30.0 | Dividers and decoration only |
| #6863CB text on white | 4.95:1 | AA | Lc 74.1 | Content text, not long reading |
| #6863CB text on black | 4.23:1 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E9F8
oklch(93.7% 0.02 279.9)
-
Step 200
200
#D4D7F3
oklch(88.6% 0.039 280.7)
-
Step 300
300
#B9BCEE
oklch(81% 0.07 282)
-
Step 400
400
#9697E5
oklch(70.7% 0.113 282.5)
-
Step 500
500
#7D7CDD
oklch(63.1% 0.143 282)
-
Step 600
600 (this color)
#6863CB
oklch(55.7% 0.156 282.2)
-
Step 700
700
#5751AF
oklch(49.1% 0.145 282.5)
-
Step 800
800
#47438E
oklch(42.7% 0.12 282.4)
-
Step 900
900
#3B3971
oklch(37.6% 0.094 282.5)
-
Step 950
950
#222242
oklch(27% 0.059 281.7)
#6863CB 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) | #3074CF | 0.069 |
| Deuteranopia (no green cones) | #296CC9 | 0.069 |
| Tritanopia (no blue cones) | #447A8D | 0.135 |
| Achromatopsia (no color) | #707070 | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6863CB
#6863CB
oklch(55.7% 0.156 282.2)
- #817500
#817500
oklch(55.6% 0.117 102.3)
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 #6863CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.015
- Slate Blue #6A5ACD ΔE 0.022
- Light Indigo #6D5ACF ΔE 0.023
- Iris #6258C4 ΔE 0.030
- Royal Blue #4169E1 ΔE 0.057
- Warm Blue #4B57DB ΔE 0.059
- Medium Slate Blue #7B68EE ΔE 0.062
- Deep Lavender #8D5EB7 ΔE 0.067
Use #6863CB 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.