#665688
Closest named color: Dusk (#4E5481). oklch(49% 0.08 298.1), rgb(102, 86, 136).
Aa
White text reads best on this color (6.45:1).
About this color
#665688 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.080 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.041 away. White text reads best on it, at 6.45:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.080) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 3.25:1 |
| White text | 6.45:1 |
Values
| HEX | #665688 |
| RGB | rgb(102, 86, 136) |
| HSL | hsl(259, 23%, 44%) |
| OKLCH | oklch(49% 0.08 298.1) |
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 #665688 | 6.45:1 | AA | Lc -87.1 | Fine for body text |
| Black text on #665688 | 3.25:1 | AA large text | Lc 22.0 | Dividers and decoration only |
| #665688 text on white | 6.45:1 | AA | Lc 82.0 | Fine for body text |
| #665688 text on black | 3.25:1 | 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
#F6F5F9
oklch(97.2% 0.005 297.7)
-
Step 100
100
#EAE8F1
oklch(93.5% 0.012 296.3)
-
Step 200
200
#DAD6E6
oklch(88.4% 0.022 297.4)
-
Step 300
300
#C3BCD7
oklch(80.9% 0.038 297.4)
-
Step 400
400
#A599C3
oklch(70.8% 0.062 297.9)
-
Step 500
500
#8F7FB4
oklch(63.1% 0.08 297.9)
-
Step 600
600
#79689F
oklch(55.5% 0.086 297.8)
-
Step 700
700 (this color)
#665688
oklch(49% 0.08 298.1)
-
Step 800
800
#53476F
oklch(42.7% 0.066 297.3)
-
Step 900
900
#453C5A
oklch(37.8% 0.051 297.7)
-
Step 950
950
#282334
oklch(26.9% 0.032 297.7)
#665688 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) | #4A5E8A | 0.045 |
| Deuteranopia (no green cones) | #4C5E87 | 0.043 |
| Tritanopia (no blue cones) | #5F5E68 | 0.065 |
| Achromatopsia (no color) | #5E5E5E | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #665688
#665688
oklch(49% 0.08 298.1)
- #5C672E
#5C672E
oklch(49.1% 0.082 118.6)
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 #665688, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.041
- Twilight #4E518B ΔE 0.043
- Dusty Grape #545775 ΔE 0.044
- Muted Purple #805B87 ΔE 0.048
- Dusky Blue #475F94 ΔE 0.050
- Dull Purple #84597E ΔE 0.056
- Dusty Purple #825F87 ΔE 0.057
- Denim Blue #3B5B92 ΔE 0.061
Use #665688 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.