#665D6D
Closest named color: Slate (#516572). oklch(49.3% 0.027 310.4), rgb(102, 93, 109).
Aa
White text reads best on this color (6.26:1).
About this color
#665D6D is a medium-dark close to neutral grey. In OKLCH its lightness is 49%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Slate (#516572), ΔE 0.036 away. White text reads best on it, at 6.26:1.
| Hue family | Neutrals |
| Lightness | medium-dark (49%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Slate (#516572) |
| Black text | 3.35:1 |
| White text | 6.26:1 |
Values
| HEX | #665D6D |
| RGB | rgb(102, 93, 109) |
| HSL | hsl(274, 8%, 40%) |
| OKLCH | oklch(49.3% 0.027 310.4) |
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 #665D6D | 6.26:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #665D6D | 3.35:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #665D6D text on white | 6.26:1 | AA | Lc 81.2 | Fine for body text |
| #665D6D text on black | 3.35:1 | AA large text | Lc -20.6 | 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
#F6F5F6
oklch(97.1% 0.002 325.6)
-
Step 100
100
#EAE9EC
oklch(93.6% 0.004 301.4)
-
Step 200
200
#DAD8DD
oklch(88.5% 0.007 304.2)
-
Step 300
300
#C3BEC7
oklch(80.8% 0.014 310.5)
-
Step 400
400
#A59DAB
oklch(70.7% 0.022 311)
-
Step 500
500
#8F8596
oklch(63.1% 0.028 311.6)
-
Step 600
600
#796F80
oklch(55.7% 0.028 311.5)
-
Step 700
700 (this color)
#665D6D
oklch(49.3% 0.027 310.4)
-
Step 800
800
#534C58
oklch(42.8% 0.021 311.3)
-
Step 900
900
#443F49
oklch(37.6% 0.018 307.9)
-
Step 950
950
#28252B
oklch(27% 0.012 308)
#665D6D 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) | #5B606E | 0.018 |
| Deuteranopia (no green cones) | #5C606C | 0.018 |
| Tritanopia (no blue cones) | #655F62 | 0.021 |
| Achromatopsia (no color) | #606060 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #665D6D
#665D6D
oklch(49.3% 0.027 310.4)
- #5C6554
#5C6554
oklch(49.4% 0.029 130.2)
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 #665D6D, 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 0.039
- Dim Gray #696969 ΔE 0.039
- YInMn Blue #415A77 ΔE 0.058
- Dull Purple #84597E ΔE 0.061
- Dusk #4E5481 ΔE 0.062
- Muted Purple #805B87 ΔE 0.063
- Dusty Purple #825F87 ΔE 0.064
Use #665D6D 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.