#6555C2
Closest named color: Iris (#6258C4). oklch(52.3% 0.164 286), rgb(101, 85, 194).
Aa
White text reads best on this color (5.78:1).
About this color
#6555C2 is a medium-dark, vivid purple. In OKLCH its lightness is 52%, its chroma 0.164 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.008 away. White text reads best on it, at 5.78:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.164) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.63:1 |
| White text | 5.78:1 |
Values
| HEX | #6555C2 |
| RGB | rgb(101, 85, 194) |
| HSL | hsl(249, 47%, 55%) |
| OKLCH | oklch(52.3% 0.164 286) |
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 #6555C2 | 5.78:1 | AA | Lc -83.9 | Fine for body text |
| Black text on #6555C2 | 3.63:1 | AA large text | Lc 25.4 | Dividers and decoration only |
| #6555C2 text on white | 5.78:1 | AA | Lc 78.6 | Fine for body text |
| #6555C2 text on black | 3.63:1 | AA large text | Lc -23.2 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E8E8F9
oklch(93.6% 0.023 286)
-
Step 200
200
#D6D6F6
oklch(88.6% 0.044 285.5)
-
Step 300
300
#BCBAF2
oklch(81% 0.079 286.1)
-
Step 400
400
#9A94EC
oklch(70.7% 0.127 285.8)
-
Step 500
500
#8377E6
oklch(63.2% 0.162 285.7)
-
Step 600
600
#6E5CD4
oklch(55.5% 0.177 285.9)
-
Step 700
700 (this color)
#6555C2
oklch(52.3% 0.164 286)
-
Step 800
800
#4B3E94
oklch(42.6% 0.136 286)
-
Step 900
900
#3E3676
oklch(37.6% 0.106 285.8)
-
Step 950
950
#242045
oklch(26.9% 0.067 285.9)
#6555C2 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) | #0F69C6 | 0.088 |
| Deuteranopia (no green cones) | #0A62C0 | 0.088 |
| Tritanopia (no blue cones) | #456D83 | 0.137 |
| Achromatopsia (no color) | #666666 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6555C2
#6555C2
oklch(52.3% 0.164 286)
- #736D00
#736D00
oklch(52.3% 0.112 105.9)
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 #6555C2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.008
- Slate Blue #6A5ACD ΔE 0.022
- Light Indigo #6D5ACF ΔE 0.027
- Dark Periwinkle #665FD1 ΔE 0.032
- Bluey Purple #6241C7 ΔE 0.045
- Warm Blue #4B57DB ΔE 0.053
- Blue With A Hint Of Purple #533CC6 ΔE 0.065
- Blurple #5539CC ΔE 0.070
Use #6555C2 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.