#645E4E
Closest named color: Dim Gray (#696969). oklch(48.3% 0.026 89.9), rgb(100, 94, 78).
Aa
White text reads best on this color (6.45:1).
About this color
#645E4E is a medium-dark close to neutral grey. In OKLCH its lightness is 48%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Dim Gray (#696969), ΔE 0.046 away. White text reads best on it, at 6.45:1.
| Hue family | Neutrals |
| Lightness | medium-dark (48%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Dim Gray (#696969) |
| Black text | 3.25:1 |
| White text | 6.45:1 |
Values
| HEX | #645E4E |
| RGB | rgb(100, 94, 78) |
| HSL | hsl(44, 12%, 35%) |
| OKLCH | oklch(48.3% 0.026 89.9) |
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 #645E4E | 6.45:1 | AA | Lc -87.1 | Fine for body text |
| Black text on #645E4E | 3.25:1 | AA large text | Lc 22.0 | Dividers and decoration only |
| #645E4E text on white | 6.45:1 | AA | Lc 82.1 | Fine for body text |
| #645E4E text on black | 3.25:1 | AA large text | Lc -19.8 | 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
#EBEAE7
oklch(93.7% 0.004 91.4)
-
Step 200
200
#DBD9D4
oklch(88.5% 0.007 88.6)
-
Step 300
300
#C4C0B8
oklch(80.9% 0.012 84.6)
-
Step 400
400
#A5A093
oklch(70.6% 0.019 89.4)
-
Step 500
500
#8F8978
oklch(63% 0.026 90.8)
-
Step 600
600
#7A7361
oklch(55.7% 0.028 89.3)
-
Step 700
700 (this color)
#645E4E
oklch(48.3% 0.026 89.9)
-
Step 800
800
#534F42
oklch(42.7% 0.021 92.9)
-
Step 900
900
#454138
oklch(37.6% 0.016 86.9)
-
Step 950
950
#282621
oklch(26.9% 0.009 88.8)
#645E4E 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) | #625D4D | 0.005 |
| Deuteranopia (no green cones) | #635F4E | 0.003 |
| Tritanopia (no blue cones) | #685B5A | 0.025 |
| Achromatopsia (no color) | #5E5E5E | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #645E4E
#645E4E
oklch(48.3% 0.026 89.9)
- #585E6D
#585E6D
oklch(48.2% 0.025 268.2)
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 #645E4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.046
- Dark Taupe #7F684E ΔE 0.056
- Slate #516572 ΔE 0.057
- Dark Moss Green #606C38 ΔE 0.061
- Cocoa #875F42 ΔE 0.061
- Dirt Brown #836539 ΔE 0.065
- Mud #735C12 ΔE 0.066
- Milk Chocolate #7F4E1E ΔE 0.070
Use #645E4E 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.