#647221
Closest named color: Muddy Green (#657432). oklch(52.4% 0.106 118.7), rgb(100, 114, 33).
Aa
White text reads best on this color (5.28:1).
About this color
#647221 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 52%, its chroma 0.106 and its hue 119°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Muddy Green (#657432), ΔE 0.015 away. White text reads best on it, at 5.28:1.
| Hue family | Yellows |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Muddy Green (#657432) |
| Black text | 3.97:1 |
| White text | 5.28:1 |
Values
| HEX | #647221 |
| RGB | rgb(100, 114, 33) |
| HSL | hsl(70, 55%, 29%) |
| OKLCH | oklch(52.4% 0.106 118.7) |
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 #647221 | 5.28:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #647221 | 3.97:1 | AA large text | Lc 27.9 | Dividers and decoration only |
| #647221 text on white | 5.28:1 | AA | Lc 76.2 | Fine for body text |
| #647221 text on black | 3.97:1 | AA large text | Lc -25.5 | 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
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#E9EBE1
oklch(93.6% 0.013 115.8)
-
Step 200
200
#D7DCC9
oklch(88.5% 0.026 118.9)
-
Step 300
300
#BDC5A3
oklch(80.8% 0.047 118.2)
-
Step 400
400
#9BA871
oklch(70.8% 0.077 119.2)
-
Step 500
500
#83924B
oklch(63.1% 0.097 119.1)
-
Step 600
600 (this color)
#647221
oklch(52.4% 0.106 118.7)
-
Step 700
700
#5B681E
oklch(49.1% 0.098 118.8)
-
Step 800
800
#4B551B
oklch(42.8% 0.082 118.3)
-
Step 900
900
#3E461D
oklch(37.6% 0.063 118.7)
-
Step 950
950
#242912
oklch(26.9% 0.039 119.2)
#647221 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) | #7A6B15 | 0.036 |
| Deuteranopia (no green cones) | #786C27 | 0.037 |
| Tritanopia (no blue cones) | #6A6C62 | 0.090 |
| Achromatopsia (no color) | #6C6C6C | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647221
#647221
oklch(52.4% 0.106 118.7)
- #725B9E
#725B9E
oklch(52.3% 0.105 298.5)
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 #647221, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Green #657432 ΔE 0.015
- Browny Green #6F6C0A ΔE 0.022
- Brown Green #706C11 ΔE 0.022
- Murky Green #6C7A0E ΔE 0.031
- Olive Green #677A04 ΔE 0.031
- Dark Moss Green #606C38 ΔE 0.033
- Dark Olive Green #556B2F ΔE 0.035
- Military Green #667C3E ΔE 0.035
Use #647221 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.