#6552B8
Closest named color: Iris (#6258C4). oklch(51.1% 0.155 288.2), rgb(101, 82, 184).
Aa
White text reads best on this color (6.08:1).
About this color
#6552B8 is a medium-dark, vivid purple. In OKLCH its lightness is 51%, its chroma 0.155 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.023 away. White text reads best on it, at 6.08:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.45:1 |
| White text | 6.08:1 |
Values
| HEX | #6552B8 |
| RGB | rgb(101, 82, 184) |
| HSL | hsl(251, 42%, 52%) |
| OKLCH | oklch(51.1% 0.155 288.2) |
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 #6552B8 | 6.08:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #6552B8 | 3.45:1 | AA large text | Lc 24.0 | Dividers and decoration only |
| #6552B8 text on white | 6.08:1 | AA | Lc 80.1 | Fine for body text |
| #6552B8 text on black | 3.45:1 | AA large text | Lc -21.7 | 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
#E9E8F8
oklch(93.6% 0.021 288.9)
-
Step 200
200
#D7D5F4
oklch(88.4% 0.042 288.5)
-
Step 300
300
#BEB9EF
oklch(80.8% 0.076 288.8)
-
Step 400
400
#9D94E7
oklch(70.7% 0.12 287.9)
-
Step 500
500
#8777DF
oklch(63.1% 0.152 288.3)
-
Step 600
600
#725DCD
oklch(55.6% 0.167 288.4)
-
Step 700
700 (this color)
#6552B8
oklch(51.1% 0.155 288.2)
-
Step 800
800
#4E3F90
oklch(42.7% 0.129 288.2)
-
Step 900
900
#403673
oklch(37.6% 0.101 288.1)
-
Step 950
950
#252043
oklch(26.9% 0.064 287.9)
#6552B8 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) | #1A65BB | 0.087 |
| Deuteranopia (no green cones) | #1B60B6 | 0.085 |
| Tritanopia (no blue cones) | #4B687D | 0.128 |
| Achromatopsia (no color) | #626262 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6552B8
#6552B8
oklch(51.1% 0.155 288.2)
- #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 #6552B8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.023
- Slate Blue #6A5ACD ΔE 0.038
- Light Indigo #6D5ACF ΔE 0.042
- Bluey Purple #6241C7 ΔE 0.046
- Dark Periwinkle #665FD1 ΔE 0.048
- Blue With A Hint Of Purple #533CC6 ΔE 0.064
- Warm Blue #4B57DB ΔE 0.066
- Blurple #5539CC ΔE 0.070
Use #6552B8 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.