#665B7E
Closest named color: Dusty Grape (#545775). oklch(49.5% 0.056 298.7), rgb(102, 91, 126).
Aa
White text reads best on this color (6.24:1).
About this color
#665B7E is a medium-dark, muted purple. In OKLCH its lightness is 50%, its chroma 0.056 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.035 away. White text reads best on it, at 6.24:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.056) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 3.36:1 |
| White text | 6.24:1 |
Values
| HEX | #665B7E |
| RGB | rgb(102, 91, 126) |
| HSL | hsl(259, 16%, 43%) |
| OKLCH | oklch(49.5% 0.056 298.7) |
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 #665B7E | 6.24:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #665B7E | 3.36:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #665B7E text on white | 6.24:1 | AA | Lc 81.1 | Fine for body text |
| #665B7E text on black | 3.36:1 | AA large text | Lc -20.8 | 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
#F6F5F8
oklch(97.2% 0.004 301.4)
-
Step 100
100
#EAE9EE
oklch(93.6% 0.007 295.4)
-
Step 200
200
#DAD7E2
oklch(88.5% 0.015 298.5)
-
Step 300
300
#C3BDD0
oklch(80.9% 0.027 300.2)
-
Step 400
400
#A49BB9
oklch(70.7% 0.044 299)
-
Step 500
500
#8E82A7
oklch(63% 0.056 299.6)
-
Step 600
600
#786C92
oklch(55.7% 0.06 298.9)
-
Step 700
700 (this color)
#665B7E
oklch(49.5% 0.056 298.7)
-
Step 800
800
#524965
oklch(42.6% 0.047 299.1)
-
Step 900
900
#443D53
oklch(37.6% 0.038 299.1)
-
Step 950
950
#282430
oklch(27% 0.023 300.1)
#665B7E 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) | #54607F | 0.029 |
| Deuteranopia (no green cones) | #55607D | 0.029 |
| Tritanopia (no blue cones) | #626067 | 0.045 |
| Achromatopsia (no color) | #606060 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #665B7E
#665B7E
oklch(49.5% 0.056 298.7)
- #5E6741
#5E6741
oklch(49.6% 0.058 119.4)
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 #665B7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.035
- Dusk #4E5481 ΔE 0.046
- Muted Purple #805B87 ΔE 0.047
- Slate #516572 ΔE 0.050
- Dull Purple #84597E ΔE 0.051
- Dusty Purple #825F87 ΔE 0.051
- Dusky Blue #475F94 ΔE 0.054
- YInMn Blue #415A77 ΔE 0.057
Use #665B7E 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.