#556B23
Closest named color: Dark Olive Green (#556B2F). oklch(49.4% 0.101 124.5), rgb(85, 107, 35).
Aa
White text reads best on this color (5.97:1).
About this color
#556B23 is a medium-dark, moderately saturated yellow. In OKLCH its lightness is 49%, its chroma 0.101 and its hue 125°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive Green (#556B2F), ΔE 0.012 away. White text reads best on it, at 5.97:1.
| Hue family | Yellows |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | Dark Olive Green (#556B2F) |
| Black text | 3.51:1 |
| White text | 5.97:1 |
Values
| HEX | #556B23 |
| RGB | rgb(85, 107, 35) |
| HSL | hsl(78, 51%, 28%) |
| OKLCH | oklch(49.4% 0.101 124.5) |
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 #556B23 | 5.97:1 | AA | Lc -85.0 | Fine for body text |
| Black text on #556B23 | 3.51:1 | AA large text | Lc 24.3 | Dividers and decoration only |
| #556B23 text on white | 5.97:1 | AA | Lc 79.8 | Fine for body text |
| #556B23 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
#B9C7A4
oklch(81% 0.05 125.3)
-
Step 400
400
#96A973
oklch(70.6% 0.078 124.1)
-
Step 500
500
#7C944E
oklch(63.1% 0.1 124.7)
-
Step 600
600
#657E30
oklch(55.6% 0.109 124.8)
-
Step 700
700 (this color)
#556B23
oklch(49.4% 0.101 124.5)
-
Step 800
800
#45571E
oklch(42.8% 0.084 124.7)
-
Step 900
900
#3A471E
oklch(37.6% 0.065 124)
-
Step 950
950
#222A13
oklch(27% 0.041 124.8)
#556B23 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) | #71641A | 0.044 |
| Deuteranopia (no green cones) | #6E6328 | 0.045 |
| Tritanopia (no blue cones) | #59665C | 0.082 |
| Achromatopsia (no color) | #636363 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #556B23
#556B23
oklch(49.4% 0.101 124.5)
- #6F5290
#6F5290
oklch(49.5% 0.101 304.5)
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 #556B23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive Green #556B2F ΔE 0.012
- Camo Green #526525 ΔE 0.020
- Mud Green #606602 ΔE 0.022
- Dark Moss Green #606C38 ΔE 0.030
- Camouflage Green #4B6113 ΔE 0.036
- Muddy Green #657432 ΔE 0.039
- Browny Green #6F6C0A ΔE 0.039
- Greeny Brown #696006 ΔE 0.039
Use #556B23 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.