#646720
Closest named color: Mud Green (#606602). oklch(49.6% 0.093 111.7), rgb(100, 103, 32).
Aa
White text reads best on this color (5.99:1).
About this color
#646720 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 50%, its chroma 0.093 and its hue 112°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mud Green (#606602), ΔE 0.018 away. White text reads best on it, at 5.99:1.
| Hue family | Browns |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.093) |
| Temperature | in between |
| Nearest name | Mud Green (#606602) |
| Black text | 3.50:1 |
| White text | 5.99:1 |
Values
| HEX | #646720 |
| RGB | rgb(100, 103, 32) |
| HSL | hsl(63, 53%, 26%) |
| OKLCH | oklch(49.6% 0.093 111.7) |
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 #646720 | 5.99:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #646720 | 3.50:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #646720 text on white | 5.99:1 | AA | Lc 79.9 | Fine for body text |
| #646720 text on black | 3.50:1 | AA large text | Lc -21.9 | 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
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#EAEBE1
oklch(93.7% 0.013 111.3)
-
Step 200
200
#D9DBC9
oklch(88.5% 0.024 112)
-
Step 300
300
#C1C4A3
oklch(80.9% 0.045 111.6)
-
Step 400
400
#A2A571
oklch(70.7% 0.071 110.9)
-
Step 500
500
#8B8F4B
oklch(63.1% 0.091 111.7)
-
Step 600
600
#75792C
oklch(55.7% 0.1 112)
-
Step 700
700 (this color)
#646720
oklch(49.6% 0.093 111.7)
-
Step 800
800
#50531B
oklch(42.7% 0.077 112.1)
-
Step 900
900
#43451D
oklch(37.9% 0.06 111.5)
-
Step 950
950
#272812
oklch(26.9% 0.037 110.9)
#646720 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) | #6F6216 | 0.021 |
| Deuteranopia (no green cones) | #6F6425 | 0.021 |
| Tritanopia (no blue cones) | #6B6159 | 0.082 |
| Achromatopsia (no color) | #636363 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #646720
#646720
oklch(49.6% 0.093 111.7)
- #635892
#635892
oklch(49.6% 0.091 291.4)
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 #646720, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Green #606602 ΔE 0.018
- Greeny Brown #696006 ΔE 0.021
- Dark Olive Green #556B2F ΔE 0.023
- Dark Moss Green #606C38 ΔE 0.024
- Brown Green #706C11 ΔE 0.027
- Browny Green #6F6C0A ΔE 0.027
- Camo Green #526525 ΔE 0.028
- Mud #735C12 ΔE 0.036
Use #646720 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.