#66375C
Closest named color: Purple Brown (#673A3F). oklch(40.9% 0.085 335.4), rgb(102, 55, 92).
Aa
White text reads best on this color (9.26:1).
About this color
#66375C is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.085 and its hue 335°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.052 away. White text reads best on it, at 9.26:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.085) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.26:1 |
| White text | 9.26:1 |
Values
| HEX | #66375C |
| RGB | rgb(102, 55, 92) |
| HSL | hsl(313, 30%, 31%) |
| OKLCH | oklch(40.9% 0.085 335.4) |
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 #66375C | 9.26:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #66375C | 2.26:1 | Fails | Lc 12.8 | Not readable |
| #66375C text on white | 9.26:1 | AAA | Lc 91.1 | Preferred for body text |
| #66375C text on black | 2.26:1 | Fails | Lc -11.2 | 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
#F8F4F7
oklch(97.1% 0.006 334)
-
Step 100
100
#F0E6EE
oklch(93.5% 0.015 332.2)
-
Step 200
200
#E5D3E0
oklch(88.5% 0.026 335.5)
-
Step 300
300
#D6B5CD
oklch(80.9% 0.05 335.8)
-
Step 400
400
#C08EB4
oklch(70.7% 0.079 335.2)
-
Step 500
500
#B071A1
oklch(63.1% 0.102 335.9)
-
Step 600
600
#9B598C
oklch(55.7% 0.11 335.9)
-
Step 700
700
#844877
oklch(49% 0.103 335.6)
-
Step 800
800 (this color)
#66375C
oklch(40.9% 0.085 335.4)
-
Step 900
900
#57334F
oklch(37.6% 0.067 335.4)
-
Step 950
950
#331E2E
oklch(26.9% 0.042 335.8)
#66375C 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) | #37435D | 0.086 |
| Deuteranopia (no green cones) | #444A5B | 0.077 |
| Tritanopia (no blue cones) | #6A3945 | 0.042 |
| Achromatopsia (no color) | #474747 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66375C
#66375C
oklch(40.9% 0.085 335.4)
- #1A5736
#1A5736
oklch(40.8% 0.084 155.8)
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 #66375C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.052
- Brownish Purple #76424E ΔE 0.056
- Velvet #750851 ΔE 0.078
- Grape Purple #5D1451 ΔE 0.080
- Rich Purple #720058 ΔE 0.085
- Red Purple #820747 ΔE 0.086
- Dark Mauve #874C62 ΔE 0.089
- Dusty Grape #545775 ΔE 0.090
Use #66375C 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.