#664A67
Closest named color: Dusty Grape (#545775). oklch(45% 0.058 325.4), rgb(102, 74, 103).
Aa
White text reads best on this color (7.66:1).
About this color
#664A67 is a dark, muted purple. In OKLCH its lightness is 45%, its chroma 0.058 and its hue 325°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Grape (#545775), ΔE 0.045 away. White text reads best on it, at 7.66:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | muted (0.058) |
| Temperature | in between |
| Nearest name | Dusty Grape (#545775) |
| Black text | 2.74:1 |
| White text | 7.66:1 |
Values
| HEX | #664A67 |
| RGB | rgb(102, 74, 103) |
| HSL | hsl(298, 16%, 35%) |
| OKLCH | oklch(45% 0.058 325.4) |
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 #664A67 | 7.66:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #664A67 | 2.74:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #664A67 text on white | 7.66:1 | AAA | Lc 86.6 | Fine for body text |
| #664A67 text on black | 2.74:1 | Fails | Lc -15.5 | 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
#F7F4F7
oklch(97% 0.005 325.6)
-
Step 100
100
#EDE8ED
oklch(93.6% 0.009 325.6)
-
Step 200
200
#E0D5E0
oklch(88.5% 0.019 325.7)
-
Step 300
300
#CCB9CD
oklch(80.8% 0.035 324.4)
-
Step 400
400
#B395B3
oklch(70.7% 0.055 326.1)
-
Step 500
500
#9F7BA1
oklch(63% 0.07 324.7)
-
Step 600
600
#8A648C
oklch(55.6% 0.075 324.9)
-
Step 700
700
#755377
oklch(49.2% 0.07 324.7)
-
Step 800
800 (this color)
#664A67
oklch(45% 0.058 325.4)
-
Step 900
900
#4E394F
oklch(37.6% 0.046 324.9)
-
Step 950
950
#2E222E
oklch(27.1% 0.028 326.3)
#664A67 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) | #485168 | 0.051 |
| Deuteranopia (no green cones) | #4E5466 | 0.048 |
| Tritanopia (no blue cones) | #684D54 | 0.036 |
| Achromatopsia (no color) | #535353 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #664A67
#664A67
oklch(45% 0.058 325.4)
- #405E41
#405E41
oklch(45% 0.059 145.3)
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 #664A67, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Grape #545775 ΔE 0.045
- Brownish Purple #76424E ΔE 0.048
- Dusk #4E5481 ΔE 0.056
- Dark Mauve #874C62 ΔE 0.063
- Purple Brown #673A3F ΔE 0.067
- Twilight #4E518B ΔE 0.068
- YInMn Blue #415A77 ΔE 0.069
- Dull Purple #84597E ΔE 0.076
Use #664A67 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.