#647428
Closest named color: Muddy Green (#657432). oklch(52.9% 0.103 120.1), rgb(100, 116, 40).
Aa
White text reads best on this color (5.15:1).
About this color
#647428 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 53%, its chroma 0.103 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 0.010 away. White text reads best on it, at 5.15:1.
| Hue family | Yellows |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Muddy Green (#657432) |
| Black text | 4.07:1 |
| White text | 5.15:1 |
Values
| HEX | #647428 |
| RGB | rgb(100, 116, 40) |
| HSL | hsl(73, 49%, 31%) |
| OKLCH | oklch(52.9% 0.103 120.1) |
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 #647428 | 5.15:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #647428 | 4.07:1 | AA large text | Lc 28.6 | Dividers and decoration only |
| #647428 text on white | 5.15:1 | AA | Lc 75.5 | Fine for body text |
| #647428 text on black | 4.07:1 | 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
#E8EBE2
oklch(93.5% 0.012 121.7)
-
Step 200
200
#D7DCC9
oklch(88.5% 0.026 118.9)
-
Step 300
300
#BCC6A5
oklch(81% 0.046 121.1)
-
Step 400
400
#9AA873
oklch(70.7% 0.075 120.4)
-
Step 500
500
#82924E
oklch(63.1% 0.094 120)
-
Step 600
600 (this color)
#647428
oklch(52.9% 0.103 120.1)
-
Step 700
700
#5A6823
oklch(49% 0.095 119.8)
-
Step 800
800
#49551F
oklch(42.6% 0.079 120.4)
-
Step 900
900
#3D461F
oklch(37.6% 0.061 120.1)
-
Step 950
950
#242913
oklch(26.9% 0.038 119.5)
#647428 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) | #7B6D1F | 0.038 |
| Deuteranopia (no green cones) | #796D2D | 0.039 |
| Tritanopia (no blue cones) | #6A6E64 | 0.087 |
| Achromatopsia (no color) | #6D6D6D | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647428
#647428
oklch(52.9% 0.103 120.1)
- #755D9E
#755D9E
oklch(53% 0.102 299.9)
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 #647428, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Green #657432 ΔE 0.010
- Browny Green #6F6C0A ΔE 0.026
- Brown Green #706C11 ΔE 0.026
- Military Green #667C3E ΔE 0.028
- Murky Green #6C7A0E ΔE 0.029
- Olive Green #677A04 ΔE 0.030
- Dark Moss Green #606C38 ΔE 0.034
- Dark Olive Green #556B2F ΔE 0.038
Use #647428 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.