#66529A
Closest named color: Twilight (#4E518B). oklch(49.2% 0.113 294.7), rgb(102, 82, 154).
Aa
White text reads best on this color (6.48:1).
About this color
#66529A is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.113 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.046 away. White text reads best on it, at 6.48:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.113) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.23:1 |
| White text | 6.48:1 |
Values
| HEX | #66529A |
| RGB | rgb(102, 82, 154) |
| HSL | hsl(257, 31%, 46%) |
| OKLCH | oklch(49.2% 0.113 294.7) |
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 #66529A | 6.48:1 | AA | Lc -87.1 | Fine for body text |
| Black text on #66529A | 3.23:1 | AA large text | Lc 22.0 | Dividers and decoration only |
| #66529A text on white | 6.48:1 | AA | Lc 82.0 | Fine for body text |
| #66529A text on black | 3.23:1 | AA large text | Lc -19.9 | 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 700.
-
Step 50
50
#F6F5FA
oklch(97.2% 0.007 295.5)
-
Step 100
100
#EAE8F4
oklch(93.6% 0.016 293.7)
-
Step 200
200
#DAD6EC
oklch(88.6% 0.03 294.1)
-
Step 300
300
#C2BAE1
oklch(80.8% 0.055 294.5)
-
Step 400
400
#A496D2
oklch(70.7% 0.088 294.8)
-
Step 500
500
#8E7BC6
oklch(63.1% 0.112 294.6)
-
Step 600
600
#7963B3
oklch(55.6% 0.122 294.8)
-
Step 700
700 (this color)
#66529A
oklch(49.2% 0.113 294.7)
-
Step 800
800
#53437D
oklch(42.7% 0.095 294.8)
-
Step 900
900
#443964
oklch(37.6% 0.073 294.4)
-
Step 950
950
#28223B
oklch(27.1% 0.046 294.1)
#66529A 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) | #3A5F9D | 0.066 |
| Deuteranopia (no green cones) | #3E5D98 | 0.062 |
| Tritanopia (no blue cones) | #5A606E | 0.093 |
| Achromatopsia (no color) | #5E5E5E | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66529A
#66529A
oklch(49.2% 0.113 294.7)
- #606800
#606800
oklch(49.3% 0.112 114.9)
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 #66529A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.046
- Dusky Blue #475F94 ΔE 0.057
- Dusk #4E5481 ΔE 0.058
- Muted Purple #805B87 ΔE 0.064
- Denim Blue #3B5B92 ΔE 0.066
- Iris #6258C4 ΔE 0.066
- Dusty Grape #545775 ΔE 0.072
- Light Eggplant #894585 ΔE 0.073
Use #66529A 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.