#646306
Closest named color: Mud Green (#606602). oklch(48.5% 0.103 109), rgb(100, 99, 6).
Aa
White text reads best on this color (6.30:1).
About this color
#646306 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 48%, its chroma 0.103 and its hue 109°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Green (#606602), ΔE 0.011 away. White text reads best on it, at 6.30:1.
| Hue family | Yellows |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.103) |
| Temperature | warm |
| Nearest name | Mud Green (#606602) |
| Black text | 3.32:1 |
| White text | 6.30:1 |
Values
| HEX | #646306 |
| RGB | rgb(100, 99, 6) |
| HSL | hsl(59, 89%, 21%) |
| OKLCH | oklch(48.5% 0.103 109) |
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 #646306 | 6.30:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #646306 | 3.32:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #646306 text on white | 6.30:1 | AA | Lc 81.3 | Fine for body text |
| #646306 text on black | 3.32:1 | AA large text | Lc -20.6 | 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
#F6F6F1
oklch(97.2% 0.007 106.5)
-
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
#C3C49F
oklch(81% 0.05 108.7)
-
Step 400
400
#A4A56A
oklch(70.7% 0.079 109.1)
-
Step 500
500
#8E8E40
oklch(63% 0.101 109)
-
Step 600
600
#79781A
oklch(55.6% 0.111 108.9)
-
Step 700
700 (this color)
#646306
oklch(48.5% 0.103 109)
-
Step 800
800
#53520F
oklch(42.6% 0.085 108.6)
-
Step 900
900
#444415
oklch(37.6% 0.067 109.2)
-
Step 950
950
#28280E
oklch(27% 0.042 108.9)
#646306 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) | #6C5E00 | 0.018 |
| Deuteranopia (no green cones) | #6D6111 | 0.018 |
| Tritanopia (no blue cones) | #6C5C53 | 0.092 |
| Achromatopsia (no color) | #606060 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #646306
#646306
oklch(48.5% 0.103 109)
- #5E5495
#5E5495
oklch(48.6% 0.102 289.1)
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 #646306, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Green #606602 ΔE 0.011
- Greeny Brown #696006 ΔE 0.012
- Camo Green #526525 ΔE 0.029
- Browny Green #6F6C0A ΔE 0.033
- Dark Olive Green #556B2F ΔE 0.033
- Mud #735C12 ΔE 0.034
- Brown Green #706C11 ΔE 0.034
- Camouflage Green #4B6113 ΔE 0.038
Use #646306 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.