#647E28
Closest named color: Murky Green (#6C7A0E). oklch(55.5% 0.116 124.6), rgb(100, 126, 40).
Aa
White text reads best on this color (4.60:1).
About this color
#647E28 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 55%, its chroma 0.116 and its hue 125°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Murky Green (#6C7A0E), ΔE 0.017 away. White text reads best on it, at 4.60:1.
| Hue family | Yellows |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.116) |
| Temperature | in between |
| Nearest name | Murky Green (#6C7A0E) |
| Black text | 4.55:1 |
| White text | 4.60:1 |
Values
| HEX | #647E28 |
| RGB | rgb(100, 126, 40) |
| HSL | hsl(78, 52%, 33%) |
| OKLCH | oklch(55.5% 0.116 124.6) |
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 #647E28 | 4.60:1 | AA | Lc -77.4 | Fine for body text |
| Black text on #647E28 | 4.55:1 | AA | Lc 32.2 | Non-text elements, placeholder text |
| #647E28 text on white | 4.60:1 | AA | Lc 71.9 | Content text, not long reading |
| #647E28 text on black | 4.55:1 | AA | Lc -29.8 | 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
#F4F6F1
oklch(97% 0.007 124.4)
-
Step 100
100
#E7ECE1
oklch(93.6% 0.016 126.8)
-
Step 200
200
#D5DDC8
oklch(88.6% 0.03 124)
-
Step 300
300
#B9C7A2
oklch(80.9% 0.053 124.4)
-
Step 400
400
#95AA70
oklch(70.7% 0.083 124.7)
-
Step 500
500
#7B9448
oklch(63% 0.107 124.4)
-
Step 600
600 (this color)
#647E28
oklch(55.5% 0.116 124.6)
-
Step 700
700
#536B1B
oklch(49.2% 0.108 124.9)
-
Step 800
800
#445719
oklch(42.7% 0.09 124.7)
-
Step 900
900
#39481B
oklch(37.7% 0.07 125.1)
-
Step 950
950
#222A11
oklch(27% 0.044 123.9)
#647E28 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) | #85761C | 0.050 |
| Deuteranopia (no green cones) | #82752F | 0.052 |
| Tritanopia (no blue cones) | #69786C | 0.094 |
| Achromatopsia (no color) | #757575 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647E28
#647E28
oklch(55.5% 0.116 124.6)
- #8260A9
#8260A9
oklch(55.4% 0.115 304.4)
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 #647E28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Murky Green #6C7A0E ΔE 0.017
- Olive Green #677A04 ΔE 0.018
- Swamp #698339 ΔE 0.021
- Military Green #667C3E ΔE 0.025
- Muddy Green #657432 ΔE 0.034
- Khaki Green #728639 ΔE 0.034
- Swamp Green #748500 ΔE 0.037
- Moss Green #658B38 ΔE 0.037
Use #647E28 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.