#66384D
Closest named color: Purple Brown (#673A3F). oklch(40.5% 0.071 351.9), rgb(102, 56, 77).
Aa
White text reads best on this color (9.38:1).
About this color
#66384D is a dark, moderately saturated red. In OKLCH its lightness is 40%, its chroma 0.071 and its hue 352°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.026 away. White text reads best on it, at 9.38:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.071) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.23:1 |
| White text | 9.38:1 |
Values
| HEX | #66384D |
| RGB | rgb(102, 56, 77) |
| HSL | hsl(333, 29%, 31%) |
| OKLCH | oklch(40.5% 0.071 351.9) |
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 #66384D | 9.38:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #66384D | 2.23:1 | Fails | Lc 12.5 | Not readable |
| #66384D text on white | 9.38:1 | AAA | Lc 91.5 | Preferred for body text |
| #66384D text on black | 2.23:1 | Fails | Lc -10.9 | Not readable |
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
#F9F4F6
oklch(97.2% 0.006 350.8)
-
Step 100
100
#F1E7EB
oklch(93.7% 0.012 351)
-
Step 200
200
#E6D3DB
oklch(88.5% 0.024 350.2)
-
Step 300
300
#D7B6C3
oklch(80.9% 0.042 352.4)
-
Step 400
400
#C290A5
oklch(70.7% 0.066 352)
-
Step 500
500
#B1748F
oklch(63.1% 0.084 351.7)
-
Step 600
600
#9C5C79
oklch(55.6% 0.091 351.8)
-
Step 700
700
#864B66
oklch(49.1% 0.087 351.9)
-
Step 800
800 (this color)
#66384D
oklch(40.5% 0.071 351.9)
-
Step 900
900
#583545
oklch(37.7% 0.055 351.1)
-
Step 950
950
#341F28
oklch(27% 0.036 352.4)
#66384D 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) | #3D424E | 0.077 |
| Deuteranopia (no green cones) | #49494C | 0.069 |
| Tritanopia (no blue cones) | #6C3640 | 0.023 |
| Achromatopsia (no color) | #464646 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66384D
#66384D
oklch(40.5% 0.071 351.9)
- #125544
#125544
oklch(40.4% 0.071 171.6)
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 #66384D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.026
- Brownish Purple #76424E ΔE 0.044
- Charcoal Grey #3C4142 ΔE 0.084
- Velvet #750851 ΔE 0.086
- Red Purple #820747 ΔE 0.087
- Wine #80013F ΔE 0.088
- Merlot #730039 ΔE 0.089
- Grape Purple #5D1451 ΔE 0.089
Use #66384D 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.