#647437
Closest named color: Muddy Green (#657432). oklch(53.1% 0.088 121.6), rgb(100, 116, 55).
Aa
White text reads best on this color (5.12:1).
About this color
#647437 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 53%, its chroma 0.088 and its hue 122°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Muddy Green (#657432), ΔE 0.005 away. White text reads best on it, at 5.12:1.
| Hue family | Yellows |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.088) |
| Temperature | in between |
| Nearest name | Muddy Green (#657432) |
| Black text | 4.09:1 |
| White text | 5.12:1 |
Values
| HEX | #647437 |
| RGB | rgb(100, 116, 55) |
| HSL | hsl(76, 36%, 34%) |
| OKLCH | oklch(53.1% 0.088 121.6) |
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 #647437 | 5.12:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #647437 | 4.09:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #647437 text on white | 5.12:1 | AA | Lc 75.3 | Fine for body text |
| #647437 text on black | 4.09:1 | AA large text | Lc -26.4 | 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
#E8EBE3
oklch(93.6% 0.011 123.5)
-
Step 200
200
#D6DCCC
oklch(88.5% 0.022 123.7)
-
Step 300
300
#BCC5A9
oklch(80.9% 0.04 121.8)
-
Step 400
400
#9AA77B
oklch(70.7% 0.063 121.4)
-
Step 500
500
#819159
oklch(63% 0.08 121.7)
-
Step 600
600 (this color)
#647437
oklch(53.1% 0.088 121.6)
-
Step 700
700
#596830
oklch(49.1% 0.082 121.9)
-
Step 800
800
#495529
oklch(42.8% 0.068 121.9)
-
Step 900
900
#3D4625
oklch(37.7% 0.053 121.5)
-
Step 950
950
#242916
oklch(27% 0.034 120.7)
#647437 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) | #7A6E31 | 0.035 |
| Deuteranopia (no green cones) | #786E3A | 0.035 |
| Tritanopia (no blue cones) | #686F66 | 0.072 |
| Achromatopsia (no color) | #6E6E6E | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647437
#647437
oklch(53.1% 0.088 121.6)
- #756097
#756097
oklch(53.2% 0.087 301)
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 #647437, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Green #657432 ΔE 0.005
- Military Green #667C3E ΔE 0.023
- Dark Moss Green #606C38 ΔE 0.026
- Brown Green #706C11 ΔE 0.033
- Browny Green #6F6C0A ΔE 0.034
- Dark Olive Green #556B2F ΔE 0.036
- Murky Green #6C7A0E ΔE 0.040
- Olive Green #677A04 ΔE 0.043
Use #647437 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.