#664375
Closest named color: Dusk (#4E5481). oklch(44.3% 0.089 315.2), rgb(102, 67, 117).
Aa
White text reads best on this color (8.00:1).
About this color
#664375 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.089 and its hue 315°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.058 away. White text reads best on it, at 8.00:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.089) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.62:1 |
| White text | 8.00:1 |
Values
| HEX | #664375 |
| RGB | rgb(102, 67, 117) |
| HSL | hsl(282, 27%, 36%) |
| OKLCH | oklch(44.3% 0.089 315.2) |
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 #664375 | 8.00:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #664375 | 2.62:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #664375 text on white | 8.00:1 | AAA | Lc 87.6 | Fine for body text |
| #664375 text on black | 2.62:1 | Fails | Lc -14.5 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EEE7F1
oklch(93.6% 0.015 316)
-
Step 200
200
#E1D4E7
oklch(88.6% 0.029 315.3)
-
Step 300
300
#CEB7D8
oklch(80.9% 0.052 315.7)
-
Step 400
400
#B591C5
oklch(70.8% 0.084 315.3)
-
Step 500
500
#A275B6
oklch(63.1% 0.107 315.1)
-
Step 600
600
#8D5DA1
oklch(55.7% 0.115 315.5)
-
Step 700
700
#784C8A
oklch(49.1% 0.108 315.6)
-
Step 800
800 (this color)
#664375
oklch(44.3% 0.089 315.2)
-
Step 900
900
#50365B
oklch(37.9% 0.069 315.4)
-
Step 950
950
#2F2035
oklch(27.1% 0.043 316)
#664375 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) | #3A4E77 | 0.074 |
| Deuteranopia (no green cones) | #435274 | 0.068 |
| Tritanopia (no blue cones) | #654A56 | 0.061 |
| Achromatopsia (no color) | #505050 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #664375
#664375
oklch(44.3% 0.089 315.2)
- #3D5E29
#3D5E29
oklch(44.3% 0.089 135)
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 #664375, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.058
- Twilight #4E518B ΔE 0.058
- Dusty Grape #545775 ΔE 0.062
- Dark Slate Blue #483D8B ΔE 0.070
- Brownish Purple #76424E ΔE 0.071
- Light Eggplant #894585 ΔE 0.071
- Rebecca Purple #663399 ΔE 0.075
- Dark Mauve #874C62 ΔE 0.079
Use #664375 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.