#664671
Closest named color: Dusty Grape (#545775). oklch(44.7% 0.078 317.2), rgb(102, 70, 113).
Aa
White text reads best on this color (7.83:1).
About this color
#664671 is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.078 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.053 away. White text reads best on it, at 7.83:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.078) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.67:1 |
| White text | 7.83:1 |
Values
| HEX | #664671 |
| RGB | rgb(102, 70, 113) |
| HSL | hsl(285, 23%, 36%) |
| OKLCH | oklch(44.7% 0.078 317.2) |
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 #664671 | 7.83:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #664671 | 2.67:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #664671 text on white | 7.83:1 | AAA | Lc 87.1 | Fine for body text |
| #664671 text on black | 2.67:1 | Fails | Lc -15.0 | 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
#F7F4F8
oklch(97.1% 0.006 317.8)
-
Step 100
100
#EEE7F0
oklch(93.6% 0.014 318.7)
-
Step 200
200
#E0D4E4
oklch(88.4% 0.025 317.7)
-
Step 300
300
#CDB8D5
oklch(80.9% 0.046 316.7)
-
Step 400
400
#B493BF
oklch(70.8% 0.073 317.6)
-
Step 500
500
#A177AF
oklch(63.1% 0.095 317.5)
-
Step 600
600
#8B5F9B
oklch(55.5% 0.103 316.7)
-
Step 700
700
#764F84
oklch(49.1% 0.094 316.8)
-
Step 800
800 (this color)
#664671
oklch(44.7% 0.078 317.2)
-
Step 900
900
#4F3757
oklch(37.7% 0.061 317.5)
-
Step 950
950
#2E2033
oklch(26.9% 0.04 317)
#664671 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) | #405073 | 0.065 |
| Deuteranopia (no green cones) | #475370 | 0.060 |
| Tritanopia (no blue cones) | #664B56 | 0.051 |
| Achromatopsia (no color) | #525252 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #664671
#664671
oklch(44.7% 0.078 317.2)
- #3F5E32
#3F5E32
oklch(44.6% 0.077 137)
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 #664671, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.053
- Dusk #4E5481 ΔE 0.054
- Twilight #4E518B ΔE 0.058
- Brownish Purple #76424E ΔE 0.062
- Dark Mauve #874C62 ΔE 0.072
- Light Eggplant #894585 ΔE 0.073
- YInMn Blue #415A77 ΔE 0.076
- Dark Slate Blue #483D8B ΔE 0.078
Use #664671 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.