#665D98
Closest named color: Dusky Blue (#475F94). oklch(51.2% 0.092 289.7), rgb(102, 93, 152).
Aa
White text reads best on this color (5.85:1).
About this color
#665D98 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 51%, its chroma 0.092 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.045 away. White text reads best on it, at 5.85:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.58:1 |
| White text | 5.85:1 |
Values
| HEX | #665D98 |
| RGB | rgb(102, 93, 152) |
| HSL | hsl(249, 24%, 48%) |
| OKLCH | oklch(51.2% 0.092 289.7) |
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 #665D98 | 5.85:1 | AA | Lc -84.5 | Fine for body text |
| Black text on #665D98 | 3.58:1 | AA large text | Lc 24.8 | Dividers and decoration only |
| #665D98 text on white | 5.85:1 | AA | Lc 79.2 | Fine for body text |
| #665D98 text on black | 3.58:1 | AA large text | Lc -22.6 | 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
#D8D7E9
oklch(88.5% 0.025 288.4)
-
Step 300
300
#BFBCDC
oklch(80.8% 0.045 289.7)
-
Step 400
400
#9F9ACB
oklch(70.8% 0.071 289.1)
-
Step 500
500
#8880BD
oklch(63.1% 0.091 289.5)
-
Step 600
600
#7269A9
oklch(55.6% 0.098 289.3)
-
Step 700
700 (this color)
#665D98
oklch(51.2% 0.092 289.7)
-
Step 800
800
#4E4776
oklch(42.6% 0.077 289.6)
-
Step 900
900
#413C5F
oklch(37.7% 0.059 289.8)
-
Step 950
950
#262338
oklch(27% 0.039 290.1)
#665D98 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) | #4B669A | 0.042 |
| Deuteranopia (no green cones) | #4C6397 | 0.039 |
| Tritanopia (no blue cones) | #5A6873 | 0.078 |
| Achromatopsia (no color) | #656565 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #665D98
#665D98
oklch(51.2% 0.092 289.7)
- #6A6B24
#6A6B24
oklch(51.2% 0.093 110)
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 #665D98, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.045
- Muted Purple #805B87 ΔE 0.050
- Dusty Purple #825F87 ΔE 0.055
- Twilight #4E518B ΔE 0.055
- Dusk #4E5481 ΔE 0.058
- French Blue #436BAD ΔE 0.060
- Dark Lavender #856798 ΔE 0.061
- Denim Blue #3B5B92 ΔE 0.062
Use #665D98 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.