#646811
Closest named color: Mud Green (#606602). oklch(49.8% 0.104 112.4), rgb(100, 104, 17).
Aa
White text reads best on this color (5.94:1).
About this color
#646811 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 50%, its chroma 0.104 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 0.011 away. White text reads best on it, at 5.94:1.
| Hue family | Yellows |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Mud Green (#606602) |
| Black text | 3.53:1 |
| White text | 5.94:1 |
Values
| HEX | #646811 |
| RGB | rgb(100, 104, 17) |
| HSL | hsl(63, 72%, 24%) |
| OKLCH | oklch(49.8% 0.104 112.4) |
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 #646811 | 5.94:1 | AA | Lc -84.8 | Fine for body text |
| Black text on #646811 | 3.53:1 | AA large text | Lc 24.4 | Dividers and decoration only |
| #646811 text on white | 5.94:1 | AA | Lc 79.6 | Fine for body text |
| #646811 text on black | 3.53:1 | AA large text | Lc -22.2 | 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
#D9DBC7
oklch(88.4% 0.027 111.6)
-
Step 300
300
#C1C4A0
oklch(80.9% 0.049 111.4)
-
Step 400
400
#A1A66B
oklch(70.7% 0.08 112.4)
-
Step 500
500
#8B9041
oklch(63.2% 0.103 112.3)
-
Step 600
600
#75791D
oklch(55.5% 0.111 112)
-
Step 700
700 (this color)
#646811
oklch(49.8% 0.104 112.4)
-
Step 800
800
#505311
oklch(42.6% 0.085 112.1)
-
Step 900
900
#424517
oklch(37.7% 0.066 112.6)
-
Step 950
950
#27290F
oklch(27.2% 0.042 112.8)
#646811 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) | #716300 | 0.023 |
| Deuteranopia (no green cones) | #716519 | 0.024 |
| Tritanopia (no blue cones) | #6B6158 | 0.092 |
| Achromatopsia (no color) | #646464 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #646811
#646811
oklch(49.8% 0.104 112.4)
- #655698
#655698
oklch(49.8% 0.104 292.7)
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 #646811, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Green #606602 ΔE 0.011
- Browny Green #6F6C0A ΔE 0.022
- Greeny Brown #696006 ΔE 0.023
- Brown Green #706C11 ΔE 0.023
- Dark Olive Green #556B2F ΔE 0.027
- Camo Green #526525 ΔE 0.031
- Dark Moss Green #606C38 ΔE 0.032
- Muddy Green #657432 ΔE 0.038
Use #646811 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.