#556D19
Closest named color: Dark Olive Green (#556B2F). oklch(49.8% 0.111 124.5), rgb(85, 109, 25).
Aa
White text reads best on this color (5.85:1).
About this color
#556D19 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 50%, its chroma 0.111 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 0.022 away. White text reads best on it, at 5.85:1.
| Hue family | Yellows |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Dark Olive Green (#556B2F) |
| Black text | 3.58:1 |
| White text | 5.85:1 |
Values
| HEX | #556D19 |
| RGB | rgb(85, 109, 25) |
| HSL | hsl(77, 63%, 26%) |
| OKLCH | oklch(49.8% 0.111 124.5) |
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 #556D19 | 5.85:1 | AA | Lc -84.4 | Fine for body text |
| Black text on #556D19 | 3.58:1 | AA large text | Lc 24.9 | Dividers and decoration only |
| #556D19 text on white | 5.85:1 | AA | Lc 79.2 | Fine for body text |
| #556D19 text on black | 3.58:1 | AA large text | Lc -22.7 | 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
#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
#B9C7A1
oklch(80.9% 0.054 124)
-
Step 400
400
#95AA6E
oklch(70.7% 0.086 124.2)
-
Step 500
500
#7B9546
oklch(63.2% 0.11 124.6)
-
Step 600
600
#647F24
oklch(55.7% 0.121 124.6)
-
Step 700
700 (this color)
#556D19
oklch(49.8% 0.111 124.5)
-
Step 800
800
#445716
oklch(42.7% 0.092 124.4)
-
Step 900
900
#394819
oklch(37.7% 0.073 124.7)
-
Step 950
950
#222A10
oklch(27% 0.045 123.5)
#556D19 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) | #736608 | 0.047 |
| Deuteranopia (no green cones) | #706421 | 0.050 |
| Tritanopia (no blue cones) | #59675D | 0.092 |
| Achromatopsia (no color) | #656565 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #556D19
#556D19
oklch(49.8% 0.111 124.5)
- #715196
#715196
oklch(49.9% 0.111 304)
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 #556D19, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive Green #556B2F ΔE 0.022
- Mud Green #606602 ΔE 0.023
- Camo Green #526525 ΔE 0.029
- Dark Moss Green #606C38 ΔE 0.037
- Browny Green #6F6C0A ΔE 0.038
- Muddy Green #657432 ΔE 0.039
- Brown Green #706C11 ΔE 0.039
- Camouflage Green #4B6113 ΔE 0.040
Use #556D19 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.