#6B5CD1
Closest named color: Light Indigo (#6D5ACF). oklch(55.1% 0.174 285), rgb(107, 92, 209).
Aa
White text reads best on this color (5.15:1).
About this color
#6B5CD1 is a medium-dark, vivid purple. In OKLCH its lightness is 55%, its chroma 0.174 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Light Indigo (#6D5ACF), ΔE 0.006 away. White text reads best on it, at 5.15:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.174) |
| Temperature | cool |
| Nearest name | Light Indigo (#6D5ACF) |
| Black text | 4.07:1 |
| White text | 5.15:1 |
Values
| HEX | #6B5CD1 |
| RGB | rgb(107, 92, 209) |
| HSL | hsl(248, 56%, 59%) |
| OKLCH | oklch(55.1% 0.174 285) |
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 #6B5CD1 | 5.15:1 | AA | Lc -80.6 | Fine for body text |
| Black text on #6B5CD1 | 4.07:1 | AA large text | Lc 28.9 | Dividers and decoration only |
| #6B5CD1 text on white | 5.15:1 | AA | Lc 75.2 | Fine for body text |
| #6B5CD1 text on black | 4.07:1 | AA large text | Lc -26.5 | 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
#E8E8F9
oklch(93.6% 0.023 286)
-
Step 200
200
#D5D6F5
oklch(88.5% 0.042 284)
-
Step 300
300
#BBBAF2
oklch(80.9% 0.079 285.3)
-
Step 400
400
#9995EB
oklch(70.8% 0.124 284.9)
-
Step 500
500
#8278E5
oklch(63.2% 0.159 285)
-
Step 600
600 (this color)
#6B5CD1
oklch(55.1% 0.174 285)
-
Step 700
700
#5B4CB7
oklch(49.1% 0.163 285.1)
-
Step 800
800
#4A3F94
oklch(42.7% 0.135 285.1)
-
Step 900
900
#3D3776
oklch(37.7% 0.104 284.6)
-
Step 950
950
#242145
oklch(27.1% 0.065 285)
#6B5CD1 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) | #0E71D5 | 0.091 |
| Deuteranopia (no green cones) | #036ACF | 0.091 |
| Tritanopia (no blue cones) | #47768E | 0.145 |
| Achromatopsia (no color) | #6D6D6D | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B5CD1
#6B5CD1
oklch(55.1% 0.174 285)
- #7C7500
#7C7500
oklch(55.1% 0.117 105.5)
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 #6B5CD1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Indigo #6D5ACF ΔE 0.006
- Slate Blue #6A5ACD ΔE 0.008
- Dark Periwinkle #665FD1 ΔE 0.010
- Iris #6258C4 ΔE 0.026
- Warm Blue #4B57DB ΔE 0.051
- Purpley #8756E4 ΔE 0.055
- Medium Slate Blue #7B68EE ΔE 0.057
- Royal Blue #4169E1 ΔE 0.061
Use #6B5CD1 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.