#648636
Closest named color: Swamp (#698339). oklch(57.6% 0.115 128.8), rgb(100, 134, 54).
Aa
Black text reads best on this color (5.00:1).
About this color
#648636 is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.115 and its hue 129°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Swamp (#698339), ΔE 0.012 away. Black text reads best on it, at 5.00:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Swamp (#698339) |
| Black text | 5.00:1 |
| White text | 4.19:1 |
Values
| HEX | #648636 |
| RGB | rgb(100, 134, 54) |
| HSL | hsl(86, 43%, 37%) |
| OKLCH | oklch(57.6% 0.115 128.8) |
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 #648636 | 4.19:1 | AA large text | Lc -74.3 | Content text, not long reading |
| Black text on #648636 | 5.00:1 | AA | Lc 35.3 | Non-text elements, placeholder text |
| #648636 text on white | 4.19:1 | AA large text | Lc 68.8 | Content text, not long reading |
| #648636 text on black | 5.00:1 | AA | Lc -32.8 | Non-text elements, placeholder text |
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
#D3DDC9
oklch(88.4% 0.029 128.8)
-
Step 300
300
#B6C8A4
oklch(80.9% 0.053 129.2)
-
Step 400
400
#91AB73
oklch(70.7% 0.083 128.6)
-
Step 500
500
#76964E
oklch(63.2% 0.106 128.7)
-
Step 600
600 (this color)
#648636
oklch(57.6% 0.115 128.8)
-
Step 700
700
#4E6C22
oklch(49.1% 0.107 128.7)
-
Step 800
800
#40581E
oklch(42.7% 0.089 128.6)
-
Step 900
900
#36491E
oklch(37.8% 0.07 129.1)
-
Step 950
950
#202B13
oklch(27.2% 0.044 129.1)
#648636 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) | #8C7D2E | 0.059 |
| Deuteranopia (no green cones) | #877B3C | 0.060 |
| Tritanopia (no blue cones) | #678075 | 0.091 |
| Achromatopsia (no color) | #7C7C7C | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #648636
#648636
oklch(57.6% 0.115 128.8)
- #8D65AD
#8D65AD
oklch(57.7% 0.115 308.7)
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 #648636, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Swamp #698339 ΔE 0.012
- Moss Green #658B38 ΔE 0.015
- Khaki Green #728639 ΔE 0.020
- Mossy Green #638B27 ΔE 0.022
- Fern Green #548D44 ΔE 0.024
- Swamp Green #748500 ΔE 0.031
- Olive Drab #6B8E23 ΔE 0.033
- Military Green #667C3E ΔE 0.034
Use #648636 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.