#566637
Closest named color: Dark Olive Green (#556B2F). oklch(48.5% 0.072 124.4), rgb(86, 102, 55).
Aa
White text reads best on this color (6.26:1).
About this color
#566637 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 48%, its chroma 0.072 and its hue 124°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive Green (#556B2F), ΔE 0.021 away. White text reads best on it, at 6.26:1.
| Hue family | Browns |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.072) |
| Temperature | in between |
| Nearest name | Dark Olive Green (#556B2F) |
| Black text | 3.35:1 |
| White text | 6.26:1 |
Values
| HEX | #566637 |
| RGB | rgb(86, 102, 55) |
| HSL | hsl(80, 30%, 31%) |
| OKLCH | oklch(48.5% 0.072 124.4) |
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 #566637 | 6.26:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #566637 | 3.35:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #566637 text on white | 6.26:1 | AA | Lc 81.2 | Fine for body text |
| #566637 text on black | 3.35:1 | AA large text | Lc -20.7 | 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 700.
-
Step 50
50
#F5F6F3
oklch(97.2% 0.004 121.6)
-
Step 100
100
#E8EBE4
oklch(93.6% 0.01 125.7)
-
Step 200
200
#D6DCCE
oklch(88.6% 0.02 125.8)
-
Step 300
300
#BBC5AD
oklch(80.9% 0.035 125.6)
-
Step 400
400
#99A781
oklch(70.7% 0.056 124.2)
-
Step 500
500
#809161
oklch(63.1% 0.071 124.3)
-
Step 600
600
#697B47
oklch(55.5% 0.078 124.5)
-
Step 700
700 (this color)
#566637
oklch(48.5% 0.072 124.4)
-
Step 800
800
#48552F
oklch(42.8% 0.061 124.3)
-
Step 900
900
#3C462A
oklch(37.7% 0.047 124.6)
-
Step 950
950
#232919
oklch(27% 0.029 125)
#566637 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) | #6B6133 | 0.033 |
| Deuteranopia (no green cones) | #68603A | 0.033 |
| Tritanopia (no blue cones) | #59625B | 0.059 |
| Achromatopsia (no color) | #606060 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #566637
#566637
oklch(48.5% 0.072 124.4)
- #685480
#685480
oklch(48.4% 0.073 304.7)
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 #566637, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive Green #556B2F ΔE 0.021
- Camo Green #526525 ΔE 0.022
- Dark Moss Green #606C38 ΔE 0.025
- Mud Green #606602 ΔE 0.040
- Camouflage Green #4B6113 ΔE 0.041
- Greeny Brown #696006 ΔE 0.042
- Army Green #4B5D16 ΔE 0.044
- Muddy Green #657432 ΔE 0.051
Use #566637 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.