#664199
Closest named color: Rebecca Purple (#663399). oklch(46.1% 0.139 300.4), rgb(102, 65, 153).
Aa
White text reads best on this color (7.55:1).
About this color
#664199 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.139 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.031 away. White text reads best on it, at 7.55:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.78:1 |
| White text | 7.55:1 |
Values
| HEX | #664199 |
| RGB | rgb(102, 65, 153) |
| HSL | hsl(265, 40%, 43%) |
| OKLCH | oklch(46.1% 0.139 300.4) |
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 #664199 | 7.55:1 | AAA | Lc -90.7 | Preferred for body text |
| Black text on #664199 | 2.78:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #664199 text on white | 7.55:1 | AAA | Lc 85.9 | Fine for body text |
| #664199 text on black | 2.78:1 | Fails | Lc -16.1 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#ECE7F5
oklch(93.6% 0.019 302.2)
-
Step 200
200
#DDD4EF
oklch(88.5% 0.038 300.8)
-
Step 300
300
#C7B7E6
oklch(80.8% 0.067 300.5)
-
Step 400
400
#AB91DA
oklch(70.7% 0.108 300)
-
Step 500
500
#9774CF
oklch(63.1% 0.137 300.3)
-
Step 600
600
#825ABC
oklch(55.5% 0.15 300.4)
-
Step 700
700 (this color)
#664199
oklch(46.1% 0.139 300.4)
-
Step 800
800
#5A3D84
oklch(42.7% 0.116 300.4)
-
Step 900
900
#4A356A
oklch(37.8% 0.09 300.4)
-
Step 950
950
#2B1F3E
oklch(27% 0.058 300.4)
#664199 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) | #1A549C | 0.103 |
| Deuteranopia (no green cones) | #285497 | 0.095 |
| Tritanopia (no blue cones) | #5B5366 | 0.108 |
| Achromatopsia (no color) | #545454 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #664199
#664199
oklch(46.1% 0.139 300.4)
- #506100
#506100
oklch(46.2% 0.111 120.8)
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 #664199, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.031
- Blueberry #464196 ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.059
- Twilight #4E518B ΔE 0.061
- Bluey Purple #6241C7 ΔE 0.074
- Dusk #4E5481 ΔE 0.077
- Light Eggplant #894585 ΔE 0.077
- Blue With A Hint Of Purple #533CC6 ΔE 0.082
Use #664199 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.