#666299
Closest named color: Dusky Blue (#475F94). oklch(52.3% 0.086 286.4), rgb(102, 98, 153).
Aa
White text reads best on this color (5.56:1).
About this color
#666299 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 52%, its chroma 0.086 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.046 away. White text reads best on it, at 5.56:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.77:1 |
| White text | 5.56:1 |
Values
| HEX | #666299 |
| RGB | rgb(102, 98, 153) |
| HSL | hsl(244, 22%, 49%) |
| OKLCH | oklch(52.3% 0.086 286.4) |
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 #666299 | 5.56:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #666299 | 3.77:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #666299 text on white | 5.56:1 | AA | Lc 77.8 | Fine for body text |
| #666299 text on black | 3.77:1 | AA large text | Lc -24.0 | 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
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E9E9F2
oklch(93.7% 0.012 286.2)
-
Step 200
200
#D7D7E8
oklch(88.4% 0.023 285.9)
-
Step 300
300
#BEBDDB
oklch(80.9% 0.042 286.9)
-
Step 400
400
#9D9BC9
oklch(70.8% 0.067 286.6)
-
Step 500
500
#8582BB
oklch(63.1% 0.085 286.1)
-
Step 600
600
#6F6BA7
oklch(55.7% 0.092 286)
-
Step 700
700 (this color)
#666299
oklch(52.3% 0.086 286.4)
-
Step 800
800
#4C4974
oklch(42.8% 0.07 286.2)
-
Step 900
900
#3F3D5E
oklch(37.7% 0.056 286.2)
-
Step 950
950
#252437
oklch(27% 0.035 286.2)
#666299 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) | #526A9B | 0.033 |
| Deuteranopia (no green cones) | #516798 | 0.032 |
| Tritanopia (no blue cones) | #596C76 | 0.074 |
| Achromatopsia (no color) | #686868 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #666299
#666299
oklch(52.3% 0.086 286.4)
- #706D2D
#706D2D
oklch(52.3% 0.086 106.5)
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 #666299, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.046
- Muted Purple #805B87 ΔE 0.050
- Dusty Purple #825F87 ΔE 0.052
- Dark Lavender #856798 ΔE 0.054
- French Blue #436BAD ΔE 0.054
- Dull Blue #49759C ΔE 0.061
- Muted Blue #3B719F ΔE 0.062
- Denim #3B638C ΔE 0.062
Use #666299 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.