#6863EC
Closest named color: Medium Slate Blue (#7B68EE). oklch(58% 0.2 279.8), rgb(104, 99, 236).
Aa
Black text reads best on this color (4.58:1).
About this color
#6863EC is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.200 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.032 away. Black text reads best on it, at 4.58:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.200) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.58:1 |
| White text | 4.58:1 |
Values
| HEX | #6863EC |
| RGB | rgb(104, 99, 236) |
| HSL | hsl(242, 78%, 66%) |
| OKLCH | oklch(58% 0.2 279.8) |
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 #6863EC | 4.58:1 | AA | Lc -76.9 | Fine for body text |
| Black text on #6863EC | 4.58:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #6863EC text on white | 4.58:1 | AA | Lc 71.4 | Content text, not long reading |
| #6863EC text on black | 4.58:1 | AA | Lc -30.3 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E6E8FC
oklch(93.5% 0.027 281.3)
-
Step 200
200
#D2D6FB
oklch(88.5% 0.051 280.4)
-
Step 300
300
#B4BBFA
oklch(80.9% 0.089 279.3)
-
Step 400
400
#8F95F8
oklch(70.7% 0.144 279.4)
-
Step 500
500
#7777F5
oklch(63.2% 0.184 279.8)
-
Step 600
600 (this color)
#6863EC
oklch(58% 0.2 279.8)
-
Step 700
700
#514AC6
oklch(49.1% 0.186 279.5)
-
Step 800
800
#423EA0
oklch(42.8% 0.154 279.5)
-
Step 900
900
#37367F
oklch(37.7% 0.12 279.6)
-
Step 950
950
#20204A
oklch(26.9% 0.076 280)
#6863EC 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) | #007BF1 | 0.085 |
| Deuteranopia (no green cones) | #0070E9 | 0.080 |
| Tritanopia (no blue cones) | #20849E | 0.173 |
| Achromatopsia (no color) | #757575 | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6863EC
#6863EC
oklch(58% 0.2 279.8)
- #8C7B00
#8C7B00
oklch(58.1% 0.121 99.6)
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 #6863EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.032
- Dark Periwinkle #665FD1 ΔE 0.042
- Light Indigo #6D5ACF ΔE 0.048
- Neon Blue #4361EE ΔE 0.048
- Slate Blue #6A5ACD ΔE 0.050
- Royal Blue #4169E1 ΔE 0.051
- Cornflower #6A79F7 ΔE 0.053
- Purpley #8756E4 ΔE 0.054
Use #6863EC 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.