#646B0D
Closest named color: Mud Green (#606602). oklch(50.5% 0.109 114.3), rgb(100, 107, 13).
Aa
White text reads best on this color (5.75:1).
About this color
#646B0D is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 50%, its chroma 0.109 and its hue 114°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mud Green (#606602), ΔE 0.017 away. White text reads best on it, at 5.75:1.
| Hue family | Yellows |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.109) |
| Temperature | in between |
| Nearest name | Mud Green (#606602) |
| Black text | 3.65:1 |
| White text | 5.75:1 |
Values
| HEX | #646B0D |
| RGB | rgb(100, 107, 13) |
| HSL | hsl(64, 78%, 24%) |
| OKLCH | oklch(50.5% 0.109 114.3) |
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 #646B0D | 5.75:1 | AA | Lc -83.9 | Fine for body text |
| Black text on #646B0D | 3.65:1 | AA large text | Lc 25.4 | Dividers and decoration only |
| #646B0D text on white | 5.75:1 | AA | Lc 78.7 | Fine for body text |
| #646B0D text on black | 3.65:1 | AA large text | Lc -23.1 | 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
#E9EBE0
oklch(93.6% 0.015 115)
-
Step 200
200
#D8DCC6
oklch(88.5% 0.03 115.4)
-
Step 300
300
#BFC59E
oklch(80.9% 0.053 114.7)
-
Step 400
400
#9FA769
oklch(70.7% 0.084 114.6)
-
Step 500
500
#88913E
oklch(63.2% 0.108 114.7)
-
Step 600
600
#737A16
oklch(55.5% 0.117 113.8)
-
Step 700
700 (this color)
#646B0D
oklch(50.5% 0.109 114.3)
-
Step 800
800
#4E540C
oklch(42.7% 0.09 114.6)
-
Step 900
900
#414614
oklch(37.8% 0.071 114.7)
-
Step 950
950
#26290D
oklch(27% 0.045 114.6)
#646B0D 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) | #746500 | 0.029 |
| Deuteranopia (no green cones) | #736717 | 0.028 |
| Tritanopia (no blue cones) | #6B645B | 0.097 |
| Achromatopsia (no color) | #666666 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #646B0D
#646B0D
oklch(50.5% 0.109 114.3)
- #69579C
#69579C
oklch(50.6% 0.108 294.2)
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 #646B0D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Green #606602 ΔE 0.017
- Browny Green #6F6C0A ΔE 0.018
- Brown Green #706C11 ΔE 0.020
- Dark Olive Green #556B2F ΔE 0.030
- Greeny Brown #696006 ΔE 0.032
- Muddy Green #657432 ΔE 0.033
- Dark Moss Green #606C38 ΔE 0.034
- Camo Green #526525 ΔE 0.037
Use #646B0D 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.