#666354
Closest named color: Dim Gray (#696969). oklch(49.8% 0.023 97.8), rgb(102, 99, 84).
Aa
White text reads best on this color (6.03:1).
About this color
#666354 is a medium-dark close to neutral grey. In OKLCH its lightness is 50%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Dim Gray (#696969), ΔE 0.033 away. White text reads best on it, at 6.03:1.
| Hue family | Neutrals |
| Lightness | medium-dark (50%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Dim Gray (#696969) |
| Black text | 3.47:1 |
| White text | 6.03:1 |
Values
| HEX | #666354 |
| RGB | rgb(102, 99, 84) |
| HSL | hsl(50, 10%, 36%) |
| OKLCH | oklch(49.8% 0.023 97.8) |
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 #666354 | 6.03:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #666354 | 3.47:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #666354 text on white | 6.03:1 | AA | Lc 80.2 | Fine for body text |
| #666354 text on black | 3.47:1 | AA large text | Lc -21.6 | 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
#F6F5F4
oklch(97.1% 0.002 67.8)
-
Step 100
100
#EAEAE7
oklch(93.6% 0.004 106.5)
-
Step 200
200
#DAD9D5
oklch(88.5% 0.006 95.1)
-
Step 300
300
#C2C1B9
oklch(80.9% 0.011 100.9)
-
Step 400
400
#A3A194
oklch(70.7% 0.019 99.7)
-
Step 500
500
#8D8A7A
oklch(63.1% 0.024 98.3)
-
Step 600
600
#777463
oklch(55.7% 0.026 98.9)
-
Step 700
700 (this color)
#666354
oklch(49.8% 0.023 97.8)
-
Step 800
800
#524F43
oklch(42.7% 0.02 95.5)
-
Step 900
900
#444239
oklch(37.8% 0.015 96.7)
-
Step 950
950
#282721
oklch(27.2% 0.011 99.3)
#666354 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) | #666253 | 0.003 |
| Deuteranopia (no green cones) | #676354 | 0.002 |
| Tritanopia (no blue cones) | #69615F | 0.021 |
| Achromatopsia (no color) | #636363 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #666354
#666354
oklch(49.8% 0.023 97.8)
- #5F6270
#5F6270
oklch(49.9% 0.023 276)
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 #666354, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.033
- Dark Taupe #7F684E ΔE 0.046
- Slate #516572 ΔE 0.052
- Dark Moss Green #606C38 ΔE 0.056
- Cocoa #875F42 ΔE 0.057
- Dirt Brown #836539 ΔE 0.059
- Grey Brown #7F7053 ΔE 0.059
- Dull Brown #876E4B ΔE 0.068
Use #666354 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.