#666E62
Closest named color: Dim Gray (#696969). oklch(52.8% 0.021 135), rgb(102, 110, 98).
Aa
White text reads best on this color (5.28:1).
About this color
#666E62 is a medium-dark close to neutral grey. In OKLCH its lightness is 53%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Dim Gray (#696969), ΔE 0.022 away. White text reads best on it, at 5.28:1.
| Hue family | Neutrals |
| Lightness | medium-dark (53%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Dim Gray (#696969) |
| Black text | 3.97:1 |
| White text | 5.28:1 |
Values
| HEX | #666E62 |
| RGB | rgb(102, 110, 98) |
| HSL | hsl(100, 6%, 41%) |
| OKLCH | oklch(52.8% 0.021 135) |
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 #666E62 | 5.28:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #666E62 | 3.97:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #666E62 text on white | 5.28:1 | AA | Lc 76.3 | Fine for body text |
| #666E62 text on black | 3.97:1 | AA large text | Lc -25.4 | 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 600.
-
Step 50
50
#F5F6F5
oklch(97.2% 0.002 145.6)
-
Step 100
100
#E9EAE8
oklch(93.6% 0.003 128.5)
-
Step 200
200
#D8DAD6
oklch(88.6% 0.006 128.5)
-
Step 300
300
#BEC2BC
oklch(80.9% 0.009 134.9)
-
Step 400
400
#9DA39A
oklch(70.8% 0.015 134.9)
-
Step 500
500
#858C81
oklch(63.1% 0.018 133.9)
-
Step 600
600 (this color)
#666E62
oklch(52.8% 0.021 135)
-
Step 700
700
#5C6358
oklch(49% 0.019 134)
-
Step 800
800
#4B5148
oklch(42.7% 0.016 135)
-
Step 900
900
#3F433D
oklch(37.7% 0.011 135)
-
Step 950
950
#252723
oklch(26.9% 0.008 128.8)
#666E62 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) | #6F6C61 | 0.014 |
| Deuteranopia (no green cones) | #6E6B63 | 0.015 |
| Tritanopia (no blue cones) | #666D6A | 0.014 |
| Achromatopsia (no color) | #6C6C6C | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #666E62
#666E62
oklch(52.8% 0.021 135)
- #706874
#706874
oklch(52.9% 0.021 314.6)
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 #666E62, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.022
- Battleship Gray #6C757D ΔE 0.043
- Grey Brown #7F7053 ΔE 0.044
- Dark Taupe #7F684E ΔE 0.044
- Slate #516572 ΔE 0.053
- Dull Brown #876E4B ΔE 0.058
- Battleship Grey #6B7C85 ΔE 0.059
- Dark Moss Green #606C38 ΔE 0.060
Use #666E62 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.