#6550BD
Closest named color: Iris (#6258C4). oklch(51.1% 0.164 288), rgb(101, 80, 189).
Aa
White text reads best on this color (6.11:1).
About this color
#6550BD is a medium-dark, vivid purple. In OKLCH its lightness is 51%, its chroma 0.164 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.021 away. White text reads best on it, at 6.11:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.164) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.43:1 |
| White text | 6.11:1 |
Values
| HEX | #6550BD |
| RGB | rgb(101, 80, 189) |
| HSL | hsl(252, 45%, 53%) |
| OKLCH | oklch(51.1% 0.164 288) |
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 #6550BD | 6.11:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #6550BD | 3.43:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #6550BD text on white | 6.11:1 | AA | Lc 80.2 | Fine for body text |
| #6550BD text on black | 3.43:1 | AA large text | Lc -21.6 | 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 700.
-
Step 50
50
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F9
oklch(93.7% 0.023 288.7)
-
Step 200
200
#D7D5F5
oklch(88.5% 0.044 288.3)
-
Step 300
300
#BDB9F2
oklch(80.9% 0.08 287.7)
-
Step 400
400
#9D93EB
oklch(70.7% 0.127 287.9)
-
Step 500
500
#8775E5
oklch(63.1% 0.163 288.2)
-
Step 600
600
#725BD3
oklch(55.6% 0.177 288.1)
-
Step 700
700 (this color)
#6550BD
oklch(51.1% 0.164 288)
-
Step 800
800
#4E3D94
oklch(42.7% 0.137 288.2)
-
Step 900
900
#403576
oklch(37.6% 0.107 287.9)
-
Step 950
950
#252045
oklch(27% 0.067 287.2)
#6550BD 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) | #0064C1 | 0.095 |
| Deuteranopia (no green cones) | #035FBB | 0.093 |
| Tritanopia (no blue cones) | #49687F | 0.135 |
| Achromatopsia (no color) | #626262 | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6550BD
#6550BD
oklch(51.1% 0.164 288)
- #6D6A00
#6D6A00
oklch(51% 0.11 107.8)
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 #6550BD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.021
- Slate Blue #6A5ACD ΔE 0.034
- Bluey Purple #6241C7 ΔE 0.037
- Light Indigo #6D5ACF ΔE 0.038
- Dark Periwinkle #665FD1 ΔE 0.045
- Blue With A Hint Of Purple #533CC6 ΔE 0.058
- Warm Blue #4B57DB ΔE 0.060
- Blurple #5539CC ΔE 0.063
Use #6550BD 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.