#647531
Closest named color: Muddy Green (#657432). oklch(53.3% 0.095 121.4), rgb(100, 117, 49).
Aa
White text reads best on this color (5.08:1).
About this color
#647531 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 53%, its chroma 0.095 and its hue 121°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Muddy Green (#657432), ΔE 0.004 away. White text reads best on it, at 5.08:1.
| Hue family | Yellows |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.095) |
| Temperature | in between |
| Nearest name | Muddy Green (#657432) |
| Black text | 4.13:1 |
| White text | 5.08:1 |
Values
| HEX | #647531 |
| RGB | rgb(100, 117, 49) |
| HSL | hsl(75, 41%, 33%) |
| OKLCH | oklch(53.3% 0.095 121.4) |
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 #647531 | 5.08:1 | AA | Lc -80.4 | Fine for body text |
| Black text on #647531 | 4.13:1 | AA large text | Lc 29.0 | Dividers and decoration only |
| #647531 text on white | 5.08:1 | AA | Lc 75.0 | Fine for body text |
| #647531 text on black | 4.13:1 | AA large text | Lc -26.7 | 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
#D6DCCB
oklch(88.5% 0.024 122.8)
-
Step 300
300
#BCC5A7
oklch(80.8% 0.042 120.9)
-
Step 400
400
#9AA877
oklch(70.8% 0.07 121.1)
-
Step 500
500
#819254
oklch(63.1% 0.088 121.5)
-
Step 600
600 (this color)
#647531
oklch(53.3% 0.095 121.4)
-
Step 700
700
#59682A
oklch(49% 0.088 121.1)
-
Step 800
800
#495524
oklch(42.7% 0.073 121)
-
Step 900
900
#3D4622
oklch(37.6% 0.057 120.7)
-
Step 950
950
#242915
oklch(27% 0.035 120.3)
#647531 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) | #7C6F2A | 0.038 |
| Deuteranopia (no green cones) | #7A6E35 | 0.040 |
| Tritanopia (no blue cones) | #696F66 | 0.080 |
| Achromatopsia (no color) | #6E6E6E | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647531
#647531
oklch(53.3% 0.095 121.4)
- #765F9B
#765F9B
oklch(53.3% 0.095 300.9)
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 #647531, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Green #657432 ΔE 0.004
- Military Green #667C3E ΔE 0.022
- Brown Green #706C11 ΔE 0.031
- Browny Green #6F6C0A ΔE 0.031
- Dark Moss Green #606C38 ΔE 0.031
- Murky Green #6C7A0E ΔE 0.033
- Olive Green #677A04 ΔE 0.035
- Dark Olive Green #556B2F ΔE 0.039
Use #647531 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.