#645A4E
Closest named color: Dim Gray (#696969). oklch(47.4% 0.023 72.3), rgb(100, 90, 78).
Aa
White text reads best on this color (6.74:1).
About this color
#645A4E is a medium-dark close to neutral grey. In OKLCH its lightness is 47%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Dim Gray (#696969), ΔE 0.052 away. White text reads best on it, at 6.74:1.
| Hue family | Neutrals |
| Lightness | medium-dark (47%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Dim Gray (#696969) |
| Black text | 3.11:1 |
| White text | 6.74:1 |
Values
| HEX | #645A4E |
| RGB | rgb(100, 90, 78) |
| HSL | hsl(33, 12%, 35%) |
| OKLCH | oklch(47.4% 0.023 72.3) |
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 #645A4E | 6.74:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #645A4E | 3.11:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #645A4E text on white | 6.74:1 | AA | Lc 83.3 | Fine for body text |
| #645A4E text on black | 3.11:1 | AA large text | Lc -18.7 | 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
#EBE9E7
oklch(93.5% 0.003 67.8)
-
Step 200
200
#DCD8D5
oklch(88.5% 0.006 59.6)
-
Step 300
300
#C5C0B9
oklch(81% 0.011 76.6)
-
Step 400
400
#A89F95
oklch(70.7% 0.018 70.5)
-
Step 500
500
#92887B
oklch(63.2% 0.022 74.5)
-
Step 600
600
#7C7164
oklch(55.5% 0.024 71.9)
-
Step 700
700 (this color)
#645A4E
oklch(47.4% 0.023 72.3)
-
Step 800
800
#564E44
oklch(42.9% 0.019 73.4)
-
Step 900
900
#474039
oklch(37.6% 0.015 67.3)
-
Step 950
950
#292622
oklch(27% 0.009 75.2)
#645A4E 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) | #5E5A4D | 0.010 |
| Deuteranopia (no green cones) | #605C4E | 0.009 |
| Tritanopia (no blue cones) | #685757 | 0.021 |
| Achromatopsia (no color) | #5B5B5B | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645A4E
#645A4E
oklch(47.4% 0.023 72.3)
- #535D69
#535D69
oklch(47.4% 0.023 253)
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 #645A4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.052
- Slate #516572 ΔE 0.058
- Dark Taupe #7F684E ΔE 0.065
- Cocoa #875F42 ΔE 0.066
- Milk Chocolate #7F4E1E ΔE 0.068
- Dusty Grape #545775 ΔE 0.070
- Mud #735C12 ΔE 0.071
- Dark Moss Green #606C38 ΔE 0.072
Use #645A4E 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.