#6D55F3
Closest named color: Medium Slate Blue (#7B68EE). oklch(56.7% 0.225 283.5), rgb(109, 85, 243).
Aa
White text reads best on this color (4.94:1).
About this color
#6D55F3 is a medium-dark, vivid purple. In OKLCH its lightness is 57%, its chroma 0.225 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.049 away. White text reads best on it, at 4.94:1.
| Hue family | Purples |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.225) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.24:1 |
| White text | 4.94:1 |
Values
| HEX | #6D55F3 |
| RGB | rgb(109, 85, 243) |
| HSL | hsl(249, 87%, 64%) |
| OKLCH | oklch(56.7% 0.225 283.5) |
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 #6D55F3 | 4.94:1 | AA | Lc -79.1 | Fine for body text |
| Black text on #6D55F3 | 4.24:1 | AA large text | Lc 30.4 | Non-text elements, placeholder text |
| #6D55F3 text on white | 4.94:1 | AA | Lc 73.7 | Content text, not long reading |
| #6D55F3 text on black | 4.24:1 | AA large text | Lc -28.0 | 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
#F4F4FF
oklch(97% 0.015 286.1)
-
Step 100
100
#E7E8FE
oklch(93.7% 0.03 283.7)
-
Step 200
200
#D3D5FE
oklch(88.5% 0.056 283)
-
Step 300
300
#B8B8FF
oklch(80.8% 0.1 283.9)
-
Step 400
400
#9590FF
oklch(70.6% 0.159 283.6)
-
Step 500
500
#7E6FFF
oklch(63% 0.206 283.5)
-
Step 600
600 (this color)
#6D55F3
oklch(56.7% 0.225 283.5)
-
Step 700
700
#5940D0
oklch(49.1% 0.209 283.5)
-
Step 800
800
#4836A8
oklch(42.6% 0.174 283.4)
-
Step 900
900
#3C3185
oklch(37.7% 0.135 283.8)
-
Step 950
950
#221E4E
oklch(27% 0.085 282.8)
#6D55F3 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) | #0075F8 | 0.101 |
| Deuteranopia (no green cones) | #006BF0 | 0.094 |
| Tritanopia (no blue cones) | #2C7D9D | 0.189 |
| Achromatopsia (no color) | #707070 | 0.226 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D55F3
#6D55F3
oklch(56.7% 0.225 283.5)
- #837900
#837900
oklch(56.7% 0.12 103.8)
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 #6D55F3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.049
- Purpley #8756E4 ΔE 0.050
- Light Indigo #6D5ACF ΔE 0.056
- Dark Periwinkle #665FD1 ΔE 0.057
- Neon Blue #4361EE ΔE 0.057
- Slate Blue #6A5ACD ΔE 0.059
- Warm Blue #4B57DB ΔE 0.061
- Burple #6832E3 ΔE 0.068
Use #6D55F3 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.