#6661AE
Closest named color: Iris (#6258C4). oklch(53.3% 0.118 284.6), rgb(102, 97, 174).
Aa
White text reads best on this color (5.40:1).
About this color
#6661AE is a medium-dark, moderately saturated purple. In OKLCH its lightness is 53%, its chroma 0.118 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.045 away. White text reads best on it, at 5.40:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.88:1 |
| White text | 5.40:1 |
Values
| HEX | #6661AE |
| RGB | rgb(102, 97, 174) |
| HSL | hsl(244, 32%, 53%) |
| OKLCH | oklch(53.3% 0.118 284.6) |
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 #6661AE | 5.40:1 | AA | Lc -82.1 | Fine for body text |
| Black text on #6661AE | 3.88:1 | AA large text | Lc 27.3 | Dividers and decoration only |
| #6661AE text on white | 5.40:1 | AA | Lc 76.8 | Fine for body text |
| #6661AE text on black | 3.88:1 | AA large text | Lc -24.9 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E8E9F4
oklch(93.6% 0.015 281.9)
-
Step 200
200
#D6D7ED
oklch(88.5% 0.03 283.7)
-
Step 300
300
#BCBDE3
oklch(81% 0.053 284)
-
Step 400
400
#9A99D4
oklch(70.6% 0.086 284.8)
-
Step 500
500
#8280C9
oklch(63.2% 0.109 284.1)
-
Step 600
600 (this color)
#6661AE
oklch(53.3% 0.118 284.6)
-
Step 700
700
#5B569C
oklch(49.1% 0.11 284.8)
-
Step 800
800
#4A477F
oklch(42.8% 0.091 284.3)
-
Step 900
900
#3E3C66
oklch(37.8% 0.071 284.6)
-
Step 950
950
#24233C
oklch(27% 0.046 284.7)
#6661AE 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) | #456CB1 | 0.048 |
| Deuteranopia (no green cones) | #4268AC | 0.049 |
| Tritanopia (no blue cones) | #51707F | 0.100 |
| Achromatopsia (no color) | #6A6A6A | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6661AE
#6661AE
oklch(53.3% 0.118 284.6)
- #776F00
#776F00
oklch(53.2% 0.113 104.6)
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 #6661AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.045
- French Blue #436BAD ΔE 0.050
- Slate Blue #6A5ACD ΔE 0.054
- Dark Periwinkle #665FD1 ΔE 0.056
- Light Indigo #6D5ACF ΔE 0.057
- Dusky Blue #475F94 ΔE 0.062
- Deep Lavender #8D5EB7 ΔE 0.066
- Dark Lavender #856798 ΔE 0.066
Use #6661AE 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.