#646543
Closest named color: Dark Moss Green (#606C38). oklch(49.7% 0.051 109.5), rgb(100, 101, 67).
Aa
White text reads best on this color (6.02:1).
About this color
#646543 is a medium-dark, muted brown. In OKLCH its lightness is 50%, its chroma 0.051 and its hue 110°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Moss Green (#606C38), ΔE 0.030 away. White text reads best on it, at 6.02:1.
| Hue family | Browns |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.051) |
| Temperature | warm |
| Nearest name | Dark Moss Green (#606C38) |
| Black text | 3.48:1 |
| White text | 6.02:1 |
Values
| HEX | #646543 |
| RGB | rgb(100, 101, 67) |
| HSL | hsl(62, 20%, 33%) |
| OKLCH | oklch(49.7% 0.051 109.5) |
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 #646543 | 6.02:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #646543 | 3.48:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #646543 text on white | 6.02:1 | AA | Lc 80.1 | Fine for body text |
| #646543 text on black | 3.48:1 | AA large text | Lc -21.7 | 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
#F5F6F3
oklch(97.2% 0.004 121.6)
-
Step 100
100
#EAEAE5
oklch(93.6% 0.007 106.5)
-
Step 200
200
#D9DAD0
oklch(88.5% 0.014 111.3)
-
Step 300
300
#C1C2B0
oklch(80.8% 0.025 109.5)
-
Step 400
400
#A2A387
oklch(70.7% 0.039 109)
-
Step 500
500
#8B8C69
oklch(63% 0.05 109.1)
-
Step 600
600
#757651
oklch(55.5% 0.054 109.3)
-
Step 700
700 (this color)
#646543
oklch(49.7% 0.051 109.5)
-
Step 800
800
#505136
oklch(42.6% 0.042 109.8)
-
Step 900
900
#43432F
oklch(37.7% 0.032 107.9)
-
Step 950
950
#27271C
oklch(26.9% 0.019 107.6)
#646543 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) | #6A6241 | 0.012 |
| Deuteranopia (no green cones) | #6B6344 | 0.013 |
| Tritanopia (no blue cones) | #69615C | 0.045 |
| Achromatopsia (no color) | #636363 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #646543
#646543
oklch(49.7% 0.051 109.5)
- #615E7E
#615E7E
oklch(49.7% 0.051 288.7)
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 #646543, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Moss Green #606C38 ΔE 0.030
- Dark Olive Green #556B2F ΔE 0.044
- Mud #735C12 ΔE 0.049
- Dark Taupe #7F684E ΔE 0.049
- Camo Green #526525 ΔE 0.049
- Dirt Brown #836539 ΔE 0.051
- Greeny Brown #696006 ΔE 0.051
- Muddy Green #657432 ΔE 0.056
Use #646543 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.