#646500
Closest named color: Mud Green (#606602). oklch(49% 0.107 110.5), rgb(100, 101, 0).
Aa
White text reads best on this color (6.17:1).
About this color
#646500 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 49%, its chroma 0.107 and its hue 110°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mud Green (#606602), ΔE 0.007 away. White text reads best on it, at 6.17:1.
| Hue family | Yellows |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.107) |
| Temperature | in between |
| Nearest name | Mud Green (#606602) |
| Black text | 3.40:1 |
| White text | 6.17:1 |
Values
| HEX | #646500 |
| RGB | rgb(100, 101, 0) |
| HSL | hsl(61, 100%, 20%) |
| OKLCH | oklch(49% 0.107 110.5) |
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 #646500 | 6.17:1 | AA | Lc -85.8 | Fine for body text |
| Black text on #646500 | 3.40:1 | AA large text | Lc 23.4 | Dividers and decoration only |
| #646500 text on white | 6.17:1 | AA | Lc 80.6 | Fine for body text |
| #646500 text on black | 3.40:1 | AA large text | Lc -21.2 | 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
#EAEBE0
oklch(93.6% 0.015 110.9)
-
Step 200
200
#DADBC6
oklch(88.5% 0.028 109.2)
-
Step 300
300
#C2C49E
oklch(80.9% 0.051 110)
-
Step 400
400
#A3A668
oklch(70.8% 0.083 110.7)
-
Step 500
500
#8D8F3C
oklch(63.1% 0.106 110.4)
-
Step 600
600
#777913
oklch(55.6% 0.116 110.8)
-
Step 700
700 (this color)
#646500
oklch(49% 0.107 110.5)
-
Step 800
800
#525309
oklch(42.8% 0.089 110.5)
-
Step 900
900
#444513
oklch(37.8% 0.07 110.4)
-
Step 950
950
#28280D
oklch(27% 0.043 109)
#646500 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) | #6E6000 | 0.021 |
| Deuteranopia (no green cones) | #6F620D | 0.022 |
| Tritanopia (no blue cones) | #6C5E55 | 0.096 |
| Achromatopsia (no color) | #616161 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #646500
#646500
oklch(49% 0.107 110.5)
- #615498
#615498
oklch(49% 0.107 290.7)
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 #646500, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Green #606602 ΔE 0.007
- Greeny Brown #696006 ΔE 0.017
- Browny Green #6F6C0A ΔE 0.028
- Brown Green #706C11 ΔE 0.030
- Camo Green #526525 ΔE 0.031
- Dark Olive Green #556B2F ΔE 0.033
- Mud #735C12 ΔE 0.039
- Dark Moss Green #606C38 ΔE 0.039
Use #646500 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.