#66733C
Closest named color: Muddy Green (#657432). oklch(53.1% 0.08 120.1), rgb(102, 115, 60).
Aa
White text reads best on this color (5.14:1).
About this color
#66733C is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 53%, its chroma 0.080 and its hue 120°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Muddy Green (#657432), ΔE 0.013 away. White text reads best on it, at 5.14:1.
| Hue family | Yellows |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.080) |
| Temperature | in between |
| Nearest name | Muddy Green (#657432) |
| Black text | 4.08:1 |
| White text | 5.14:1 |
Values
| HEX | #66733C |
| RGB | rgb(102, 115, 60) |
| HSL | hsl(74, 31%, 34%) |
| OKLCH | oklch(53.1% 0.08 120.1) |
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 #66733C | 5.14:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #66733C | 4.08:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #66733C text on white | 5.14:1 | AA | Lc 75.4 | Fine for body text |
| #66733C text on black | 4.08:1 | AA large text | Lc -26.3 | 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 600.
-
Step 50
50
#F5F6F2
oklch(97.1% 0.005 117.9)
-
Step 100
100
#E9EBE3
oklch(93.6% 0.011 118)
-
Step 200
200
#D7DBCD
oklch(88.4% 0.019 119.8)
-
Step 300
300
#BDC4AB
oklch(80.8% 0.035 119.9)
-
Step 400
400
#9CA67E
oklch(70.7% 0.057 119.3)
-
Step 500
500
#83905D
oklch(63% 0.073 120.2)
-
Step 600
600 (this color)
#66733C
oklch(53.1% 0.08 120.1)
-
Step 700
700
#5B6735
oklch(49.1% 0.074 120.3)
-
Step 800
800
#4A542C
oklch(42.7% 0.062 120.6)
-
Step 900
900
#3E4528
oklch(37.6% 0.047 119.8)
-
Step 950
950
#242918
oklch(27.1% 0.031 121.8)
#66733C 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) | #796E37 | 0.030 |
| Deuteranopia (no green cones) | #776E3F | 0.030 |
| Tritanopia (no blue cones) | #6B6E66 | 0.067 |
| Achromatopsia (no color) | #6D6D6D | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66733C
#66733C
oklch(53.1% 0.08 120.1)
- #736194
#736194
oklch(53.1% 0.081 299.9)
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 #66733C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Green #657432 ΔE 0.013
- Dark Moss Green #606C38 ΔE 0.023
- Military Green #667C3E ΔE 0.026
- Brown Green #706C11 ΔE 0.035
- Browny Green #6F6C0A ΔE 0.037
- Dark Olive Green #556B2F ΔE 0.038
- Murky Green #6C7A0E ΔE 0.047
- Swamp #698339 ΔE 0.050
Use #66733C 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.