#6B55EB
Closest named color: Light Indigo (#6D5ACF). oklch(55.9% 0.216 283.6), rgb(107, 85, 235).
Aa
White text reads best on this color (5.09:1).
About this color
#6B55EB is a medium-dark, vivid purple. In OKLCH its lightness is 56%, its chroma 0.216 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.045 away. White text reads best on it, at 5.09:1.
| Hue family | Purples |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.216) |
| Temperature | cool |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 4.12:1 |
| White text | 5.09:1 |
Values
| HEX | #6B55EB |
| RGB | rgb(107, 85, 235) |
| HSL | hsl(249, 79%, 63%) |
| OKLCH | oklch(55.9% 0.216 283.6) |
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 #6B55EB | 5.09:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #6B55EB | 4.12:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #6B55EB text on white | 5.09:1 | AA | Lc 74.6 | Content text, not long reading |
| #6B55EB text on black | 4.12:1 | AA large text | Lc -27.1 | 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
#F4F4FE
oklch(97% 0.013 286.1)
-
Step 100
100
#E7E8FD
oklch(93.7% 0.028 283.7)
-
Step 200
200
#D4D5FC
oklch(88.5% 0.053 284.1)
-
Step 300
300
#B8B9FE
oklch(81% 0.097 283.4)
-
Step 400
400
#9591FD
oklch(70.7% 0.155 283.4)
-
Step 500
500
#7E71FB
oklch(63.1% 0.198 283.4)
-
Step 600
600 (this color)
#6B55EB
oklch(55.9% 0.216 283.6)
-
Step 700
700
#5943CC
oklch(49.1% 0.201 283.5)
-
Step 800
800
#4838A4
oklch(42.6% 0.166 283.5)
-
Step 900
900
#3C3282
oklch(37.6% 0.129 284)
-
Step 950
950
#231E4C
oklch(26.9% 0.082 284.4)
#6B55EB 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) | #0073F0 | 0.098 |
| Deuteranopia (no green cones) | #0069E8 | 0.093 |
| Tritanopia (no blue cones) | #307A98 | 0.182 |
| Achromatopsia (no color) | #6E6E6E | 0.217 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B55EB
#6B55EB
oklch(55.9% 0.216 283.6)
- #817600
#817600
oklch(55.8% 0.117 103)
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 #6B55EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.045
- Dark Periwinkle #665FD1 ΔE 0.046
- Slate Blue #6A5ACD ΔE 0.048
- Purpley #8756E4 ΔE 0.048
- Medium Slate Blue #7B68EE ΔE 0.051
- Warm Blue #4B57DB ΔE 0.052
- Neon Blue #4361EE ΔE 0.055
- Iris #6258C4 ΔE 0.062
Use #6B55EB 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.