#6C55D3
Closest named color: Light Indigo (#6D5ACF). oklch(54.1% 0.186 286.8), rgb(108, 85, 211).
Aa
White text reads best on this color (5.41:1).
About this color
#6C55D3 is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.186 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.014 away. White text reads best on it, at 5.41:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.186) |
| Temperature | cool |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 3.87:1 |
| White text | 5.41:1 |
Values
| HEX | #6C55D3 |
| RGB | rgb(108, 85, 211) |
| HSL | hsl(251, 59%, 58%) |
| OKLCH | oklch(54.1% 0.186 286.8) |
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 #6C55D3 | 5.41:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #6C55D3 | 3.87:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #6C55D3 text on white | 5.41:1 | AA | Lc 76.6 | Fine for body text |
| #6C55D3 text on black | 3.87:1 | AA large text | Lc -25.1 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E8E8FA
oklch(93.6% 0.024 285.9)
-
Step 200
200
#D6D5F7
oklch(88.4% 0.047 286.8)
-
Step 300
300
#BCB9F5
oklch(80.9% 0.084 286.6)
-
Step 400
400
#9B92EF
oklch(70.6% 0.134 286.9)
-
Step 500
500
#8574EA
oklch(63.1% 0.172 287)
-
Step 600
600 (this color)
#6C55D3
oklch(54.1% 0.186 286.8)
-
Step 700
700
#5E49BB
oklch(49.1% 0.172 286.7)
-
Step 800
800
#4D3C98
oklch(42.7% 0.144 287.1)
-
Step 900
900
#3F3579
oklch(37.8% 0.112 286.5)
-
Step 950
950
#252047
oklch(27.2% 0.07 286.6)
#6C55D3 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) | #006DD7 | 0.100 |
| Deuteranopia (no green cones) | #0066D0 | 0.098 |
| Tritanopia (no blue cones) | #48728C | 0.154 |
| Achromatopsia (no color) | #6A6A6A | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C55D3
#6C55D3
oklch(54.1% 0.186 286.8)
- #777300
#777300
oklch(54.2% 0.116 107.3)
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 #6C55D3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.014
- Slate Blue #6A5ACD ΔE 0.015
- Dark Periwinkle #665FD1 ΔE 0.024
- Iris #6258C4 ΔE 0.029
- Warm Blue #4B57DB ΔE 0.049
- Bluey Purple #6241C7 ΔE 0.050
- Purpley #8756E4 ΔE 0.052
- Medium Slate Blue #7B68EE ΔE 0.064
Use #6C55D3 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.