#665A51
Closest named color: Dim Gray (#696969). oklch(47.6% 0.021 59.1), rgb(102, 90, 81).
Aa
White text reads best on this color (6.67:1).
About this color
#665A51 is a medium-dark close to neutral grey. In OKLCH its lightness is 48%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Dim Gray (#696969), ΔE 0.049 away. White text reads best on it, at 6.67:1.
| Hue family | Neutrals |
| Lightness | medium-dark (48%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Dim Gray (#696969) |
| Black text | 3.14:1 |
| White text | 6.67:1 |
Values
| HEX | #665A51 |
| RGB | rgb(102, 90, 81) |
| HSL | hsl(26, 11%, 36%) |
| OKLCH | oklch(47.6% 0.021 59.1) |
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 #665A51 | 6.67:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #665A51 | 3.14:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #665A51 text on white | 6.67:1 | AA | Lc 83.0 | Fine for body text |
| #665A51 text on black | 3.14:1 | AA large text | Lc -19.0 | 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
#EBE9E8
oklch(93.5% 0.003 48.7)
-
Step 200
200
#DCD8D5
oklch(88.5% 0.006 59.6)
-
Step 300
300
#C6BFBA
oklch(80.9% 0.011 58.2)
-
Step 400
400
#A99E97
oklch(70.7% 0.016 54.8)
-
Step 500
500
#93877D
oklch(63.1% 0.021 62.3)
-
Step 600
600
#7E7066
oklch(55.5% 0.023 57.8)
-
Step 700
700 (this color)
#665A51
oklch(47.6% 0.021 59.1)
-
Step 800
800
#574D46
oklch(42.8% 0.018 57.2)
-
Step 900
900
#47403B
oklch(37.7% 0.013 57.9)
-
Step 950
950
#2A2522
oklch(26.9% 0.009 53.1)
#665A51 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) | #5E5B50 | 0.014 |
| Deuteranopia (no green cones) | #605D51 | 0.013 |
| Tritanopia (no blue cones) | #6A5857 | 0.015 |
| Achromatopsia (no color) | #5C5C5C | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #665A51
#665A51
oklch(47.6% 0.021 59.1)
- #525F67
#525F67
oklch(47.7% 0.021 234.9)
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 #665A51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.049
- Slate #516572 ΔE 0.056
- Dark Taupe #7F684E ΔE 0.063
- Cocoa #875F42 ΔE 0.064
- Dusty Grape #545775 ΔE 0.067
- Milk Chocolate #7F4E1E ΔE 0.070
- Brownish Purple #76424E ΔE 0.070
- Dirt Brown #836539 ΔE 0.072
Use #665A51 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.