#665497
Closest named color: Twilight (#4E518B). oklch(49.4% 0.106 294.6), rgb(102, 84, 151).
Aa
White text reads best on this color (6.40:1).
About this color
#665497 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.106 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.044 away. White text reads best on it, at 6.40:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.27:1 |
| White text | 6.40:1 |
Values
| HEX | #665497 |
| RGB | rgb(102, 84, 151) |
| HSL | hsl(256, 29%, 46%) |
| OKLCH | oklch(49.4% 0.106 294.6) |
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 #665497 | 6.40:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #665497 | 3.27:1 | AA large text | Lc 22.3 | Dividers and decoration only |
| #665497 text on white | 6.40:1 | AA | Lc 81.7 | Fine for body text |
| #665497 text on black | 3.27:1 | AA large text | Lc -20.2 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#EAE8F3
oklch(93.6% 0.015 294.5)
-
Step 200
200
#DAD6EA
oklch(88.5% 0.028 295)
-
Step 300
300
#C2BBDF
oklch(80.9% 0.051 294.2)
-
Step 400
400
#A397CF
oklch(70.7% 0.082 294)
-
Step 500
500
#8E7CC2
oklch(63.1% 0.105 295)
-
Step 600
600
#7865AF
oklch(55.7% 0.113 294.2)
-
Step 700
700 (this color)
#665497
oklch(49.4% 0.106 294.6)
-
Step 800
800
#52447A
oklch(42.6% 0.088 294.3)
-
Step 900
900
#443A62
oklch(37.7% 0.068 294.4)
-
Step 950
950
#282239
oklch(27% 0.043 295.4)
#665497 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) | #3F5F99 | 0.059 |
| Deuteranopia (no green cones) | #425E95 | 0.056 |
| Tritanopia (no blue cones) | #5B606E | 0.085 |
| Achromatopsia (no color) | #5F5F5F | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #665497
#665497
oklch(49.4% 0.106 294.6)
- #61680F
#61680F
oklch(49.5% 0.106 114.4)
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 #665497, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.044
- Dusky Blue #475F94 ΔE 0.053
- Dusk #4E5481 ΔE 0.053
- Muted Purple #805B87 ΔE 0.059
- Denim Blue #3B5B92 ΔE 0.063
- Dusty Grape #545775 ΔE 0.066
- Dusty Purple #825F87 ΔE 0.067
- Dull Purple #84597E ΔE 0.070
Use #665497 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.