#665E72
Closest named color: Slate (#516572). oklch(49.7% 0.033 303.4), rgb(102, 94, 114).
Aa
White text reads best on this color (6.16:1).
About this color
#665E72 is a medium-dark, muted purple. In OKLCH its lightness is 50%, its chroma 0.033 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate (#516572), ΔE 0.036 away. White text reads best on it, at 6.16:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.033) |
| Temperature | in between |
| Nearest name | Slate (#516572) |
| Black text | 3.40:1 |
| White text | 6.16:1 |
Values
| HEX | #665E72 |
| RGB | rgb(102, 94, 114) |
| HSL | hsl(264, 10%, 41%) |
| OKLCH | oklch(49.7% 0.033 303.4) |
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 #665E72 | 6.16:1 | AA | Lc -85.9 | Fine for body text |
| Black text on #665E72 | 3.40:1 | AA large text | Lc 23.3 | Dividers and decoration only |
| #665E72 text on white | 6.16:1 | AA | Lc 80.8 | Fine for body text |
| #665E72 text on black | 3.40:1 | AA large text | Lc -21.1 | 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 700.
-
Step 50
50
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#EAE9EC
oklch(93.6% 0.004 301.4)
-
Step 200
200
#DAD8DE
oklch(88.6% 0.008 301.3)
-
Step 300
300
#C2BEC9
oklch(80.8% 0.016 302.5)
-
Step 400
400
#A49DAE
oklch(70.7% 0.026 304.3)
-
Step 500
500
#8D859A
oklch(63.1% 0.032 302.8)
-
Step 600
600
#776F85
oklch(55.7% 0.035 301.8)
-
Step 700
700 (this color)
#665E72
oklch(49.7% 0.033 303.4)
-
Step 800
800
#524C5B
oklch(42.8% 0.026 303.5)
-
Step 900
900
#443F4B
oklch(37.7% 0.021 304.3)
-
Step 950
950
#28252C
oklch(27.1% 0.013 304.9)
#665E72 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) | #5B6173 | 0.018 |
| Deuteranopia (no green cones) | #5C6171 | 0.018 |
| Tritanopia (no blue cones) | #646165 | 0.026 |
| Achromatopsia (no color) | #616161 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #665E72
#665E72
oklch(49.7% 0.033 303.4)
- #5E6651
#5E6651
oklch(49.7% 0.034 124.6)
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 #665E72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.036
- Dusty Grape #545775 ΔE 0.038
- Dim Gray #696969 ΔE 0.041
- YInMn Blue #415A77 ΔE 0.057
- Dull Purple #84597E ΔE 0.057
- Muted Purple #805B87 ΔE 0.058
- Dusk #4E5481 ΔE 0.059
- Dusty Purple #825F87 ΔE 0.059
Use #665E72 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.