#645F5E
Closest named color: Dim Gray (#696969). oklch(49% 0.007 31.1), rgb(100, 95, 94).
Aa
White text reads best on this color (6.28:1).
About this color
#645F5E is a medium-dark close to neutral grey. In OKLCH its lightness is 49%, its chroma 0.007. It has too little chroma to lean warm or cool. The nearest named color is Dim Gray (#696969), ΔE 0.032 away. White text reads best on it, at 6.28:1.
| Hue family | Neutrals |
| Lightness | medium-dark (49%) |
| Chroma | close to neutral grey (0.007) |
| Temperature | neutral |
| Nearest name | Dim Gray (#696969) |
| Black text | 3.34:1 |
| White text | 6.28:1 |
Values
| HEX | #645F5E |
| RGB | rgb(100, 95, 94) |
| HSL | hsl(10, 3%, 38%) |
| OKLCH | oklch(49% 0.007 31.1) |
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 #645F5E | 6.28:1 | AA | Lc -86.5 | Fine for body text |
| Black text on #645F5E | 3.34:1 | AA large text | Lc 22.7 | Dividers and decoration only |
| #645F5E text on white | 6.28:1 | AA | Lc 81.3 | Fine for body text |
| #645F5E text on black | 3.34:1 | AA large text | Lc -20.5 | 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
#F6F5F5
oklch(97.1% 0.001 17.2)
-
Step 100
100
#EAE9E9
oklch(93.5% 0.001 17.2)
-
Step 200
200
#DAD9D8
oklch(88.6% 0.002 67.8)
-
Step 300
300
#C2C0BF
oklch(80.9% 0.003 48.7)
-
Step 400
400
#A49F9F
oklch(70.7% 0.006 17.3)
-
Step 500
500
#8D8887
oklch(63.1% 0.006 31.1)
-
Step 600
600
#777271
oklch(55.6% 0.006 31.1)
-
Step 700
700 (this color)
#645F5E
oklch(49% 0.007 31.1)
-
Step 800
800
#524E4D
oklch(42.7% 0.006 34.3)
-
Step 900
900
#444140
oklch(37.8% 0.004 39.4)
-
Step 950
950
#282626
oklch(27.1% 0.003 17.3)
#645F5E 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) | #605F5E | 0.006 |
| Deuteranopia (no green cones) | #61605E | 0.005 |
| Tritanopia (no blue cones) | #655E5F | 0.004 |
| Achromatopsia (no color) | #606060 | 0.007 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
This color is close to neutral, so it has no meaningful hue to rotate. Hue harmonies are omitted.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #645F5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.032
- Slate #516572 ΔE 0.038
- Dusty Grape #545775 ΔE 0.057
- Dark Taupe #7F684E ΔE 0.061
- YInMn Blue #415A77 ΔE 0.068
- Cocoa #875F42 ΔE 0.069
- Battleship Gray #6C757D ΔE 0.071
- Grey Brown #7F7053 ΔE 0.075
Use #645F5E 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.