#647839
Closest named color: Muddy Green (#657432). oklch(54.1% 0.092 124), rgb(100, 120, 57).
Aa
White text reads best on this color (4.89:1).
About this color
#647839 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 54%, its chroma 0.092 and its hue 124°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Muddy Green (#657432), ΔE 0.012 away. White text reads best on it, at 4.89:1.
| Hue family | Yellows |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.092) |
| Temperature | in between |
| Nearest name | Muddy Green (#657432) |
| Black text | 4.28:1 |
| White text | 4.89:1 |
Values
| HEX | #647839 |
| RGB | rgb(100, 120, 57) |
| HSL | hsl(79, 36%, 35%) |
| OKLCH | oklch(54.1% 0.092 124) |
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 #647839 | 4.89:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #647839 | 4.28:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #647839 text on white | 4.89:1 | AA | Lc 73.9 | Content text, not long reading |
| #647839 text on black | 4.28:1 | AA large text | Lc -27.8 | 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
#F4F6F2
oklch(97.1% 0.006 128.5)
-
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
#BBC6A9
oklch(81% 0.041 124.2)
-
Step 400
400
#98A87B
oklch(70.7% 0.065 123.9)
-
Step 500
500
#7F9258
oklch(63% 0.084 123.6)
-
Step 600
600 (this color)
#647839
oklch(54.1% 0.092 124)
-
Step 700
700
#57692F
oklch(49.2% 0.086 123.8)
-
Step 800
800
#475528
oklch(42.6% 0.07 123.6)
-
Step 900
900
#3B4725
oklch(37.8% 0.056 124.9)
-
Step 950
950
#232916
oklch(26.9% 0.034 123)
#647839 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) | #7E7133 | 0.041 |
| Deuteranopia (no green cones) | #7B713D | 0.041 |
| Tritanopia (no blue cones) | #68736A | 0.075 |
| Achromatopsia (no color) | #717171 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647839
#647839
oklch(54.1% 0.092 124)
- #7B619A
#7B619A
oklch(54.1% 0.091 304.5)
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 #647839, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Green #657432 ΔE 0.012
- Military Green #667C3E ΔE 0.012
- Murky Green #6C7A0E ΔE 0.034
- Swamp #698339 ΔE 0.034
- Dark Moss Green #606C38 ΔE 0.037
- Olive Green #677A04 ΔE 0.037
- Brown Green #706C11 ΔE 0.039
- Browny Green #6F6C0A ΔE 0.041
Use #647839 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.