#556B20
Closest named color: Dark Olive Green (#556B2F). oklch(49.4% 0.104 124.2), rgb(85, 107, 32).
Aa
White text reads best on this color (5.98:1).
About this color
#556B20 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 49%, its chroma 0.104 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 0.015 away. White text reads best on it, at 5.98:1.
| Hue family | Yellows |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Dark Olive Green (#556B2F) |
| Black text | 3.51:1 |
| White text | 5.98:1 |
Values
| HEX | #556B20 |
| RGB | rgb(85, 107, 32) |
| HSL | hsl(78, 54%, 27%) |
| OKLCH | oklch(49.4% 0.104 124.2) |
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 #556B20 | 5.98:1 | AA | Lc -85.0 | Fine for body text |
| Black text on #556B20 | 3.51:1 | AA large text | Lc 24.3 | Dividers and decoration only |
| #556B20 text on white | 5.98:1 | AA | Lc 79.8 | Fine for body text |
| #556B20 text on black | 3.51:1 | AA large text | Lc -22.0 | 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
#E8ECE1
oklch(93.7% 0.015 123)
-
Step 200
200
#D5DDC9
oklch(88.6% 0.028 124.8)
-
Step 300
300
#B9C7A3
oklch(80.9% 0.051 124.8)
-
Step 400
400
#96A972
oklch(70.6% 0.079 123.9)
-
Step 500
500
#7C944B
oklch(63.1% 0.103 124.3)
-
Step 600
600
#657E2D
oklch(55.6% 0.111 124.5)
-
Step 700
700 (this color)
#556B20
oklch(49.4% 0.104 124.2)
-
Step 800
800
#45571C
oklch(42.8% 0.086 124.4)
-
Step 900
900
#3A471D
oklch(37.6% 0.066 123.8)
-
Step 950
950
#222A12
oklch(27% 0.042 124.3)
#556B20 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) | #716416 | 0.044 |
| Deuteranopia (no green cones) | #6E6326 | 0.046 |
| Tritanopia (no blue cones) | #59665C | 0.085 |
| Achromatopsia (no color) | #636363 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #556B20
#556B20
oklch(49.4% 0.104 124.2)
- #6F5191
#6F5191
oklch(49.4% 0.104 304.5)
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 #556B20, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive Green #556B2F ΔE 0.015
- Mud Green #606602 ΔE 0.021
- Camo Green #526525 ΔE 0.021
- Dark Moss Green #606C38 ΔE 0.032
- Camouflage Green #4B6113 ΔE 0.035
- Browny Green #6F6C0A ΔE 0.039
- Greeny Brown #696006 ΔE 0.039
- Muddy Green #657432 ΔE 0.040
Use #556B20 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.