#66487F
Closest named color: Twilight (#4E518B). oklch(45.8% 0.093 308.2), rgb(102, 72, 127).
Aa
White text reads best on this color (7.50:1).
About this color
#66487F is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.093 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.046 away. White text reads best on it, at 7.50:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.093) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.79:1 |
| White text | 7.50:1 |
Values
| HEX | #66487F |
| RGB | rgb(102, 72, 127) |
| HSL | hsl(273, 28%, 39%) |
| OKLCH | oklch(45.8% 0.093 308.2) |
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 #66487F | 7.50:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #66487F | 2.79:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #66487F text on white | 7.50:1 | AAA | Lc 86.0 | Fine for body text |
| #66487F text on black | 2.79:1 | 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 800.
-
Step 50
50
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F2
oklch(93.6% 0.016 310.1)
-
Step 200
200
#DFD4E9
oklch(88.5% 0.031 309.1)
-
Step 300
300
#CAB8DC
oklch(80.9% 0.054 307.7)
-
Step 400
400
#B092CB
oklch(70.7% 0.088 308.2)
-
Step 500
500
#9C76BD
oklch(63% 0.111 308.1)
-
Step 600
600
#875EA9
oklch(55.6% 0.12 308.1)
-
Step 700
700
#734D91
oklch(49.1% 0.112 308.6)
-
Step 800
800 (this color)
#66487F
oklch(45.8% 0.093 308.2)
-
Step 900
900
#4C365F
oklch(37.6% 0.073 307.9)
-
Step 950
950
#2D2038
oklch(27.1% 0.047 308.4)
#66487F 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) | #3C5381 | 0.069 |
| Deuteranopia (no green cones) | #43557D | 0.064 |
| Tritanopia (no blue cones) | #63505D | 0.067 |
| Achromatopsia (no color) | #555555 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66487F
#66487F
oklch(45.8% 0.093 308.2)
- #486123
#486123
oklch(45.8% 0.093 128.1)
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 #66487F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.046
- Dusk #4E5481 ΔE 0.048
- Dusty Grape #545775 ΔE 0.056
- Light Eggplant #894585 ΔE 0.066
- Dark Slate Blue #483D8B ΔE 0.068
- Rebecca Purple #663399 ΔE 0.070
- Muted Purple #805B87 ΔE 0.072
- Blueberry #464196 ΔE 0.073
Use #66487F 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.