#556B59
Closest named color: Dim Gray (#696969). oklch(50.4% 0.039 150.2), rgb(85, 107, 89).
Aa
White text reads best on this color (5.77:1).
About this color
#556B59 is a medium-dark, muted green. In OKLCH its lightness is 50%, its chroma 0.039 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dim Gray (#696969), ΔE 0.042 away. White text reads best on it, at 5.77:1.
| Hue family | Greens |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.039) |
| Temperature | in between |
| Nearest name | Dim Gray (#696969) |
| Black text | 3.63:1 |
| White text | 5.77:1 |
Values
| HEX | #556B59 |
| RGB | rgb(85, 107, 89) |
| HSL | hsl(131, 11%, 38%) |
| OKLCH | oklch(50.4% 0.039 150.2) |
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 #556B59 | 5.77:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #556B59 | 3.63:1 | AA large text | Lc 25.2 | Dividers and decoration only |
| #556B59 text on white | 5.77:1 | AA | Lc 78.9 | Fine for body text |
| #556B59 text on black | 3.63:1 | AA large text | Lc -22.9 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE8
oklch(93.6% 0.006 153.8)
-
Step 200
200
#D4DBD5
oklch(88.4% 0.011 149.8)
-
Step 300
300
#B9C4BA
oklch(80.9% 0.018 148.1)
-
Step 400
400
#94A697
oklch(70.7% 0.03 150.2)
-
Step 500
500
#7A907E
oklch(63.1% 0.037 150.5)
-
Step 600
600
#627B67
oklch(55.7% 0.042 150.8)
-
Step 700
700 (this color)
#556B59
oklch(50.4% 0.039 150.2)
-
Step 800
800
#435446
oklch(42.7% 0.031 150.1)
-
Step 900
900
#38453B
oklch(37.5% 0.024 152.1)
-
Step 950
950
#212922
oklch(27.1% 0.017 148.6)
#556B59 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) | #6B6758 | 0.033 |
| Deuteranopia (no green cones) | #68655A | 0.032 |
| Tritanopia (no blue cones) | #526A66 | 0.022 |
| Achromatopsia (no color) | #666666 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #556B59
#556B59
oklch(50.4% 0.039 150.2)
- #725D6F
#725D6F
oklch(50.5% 0.038 330.9)
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 #556B59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dim Gray #696969 ΔE 0.042
- Dark Moss Green #606C38 ΔE 0.047
- Slate #516572 ΔE 0.049
- Dark Olive Green #556B2F ΔE 0.057
- Dark Aquamarine #017371 ΔE 0.063
- Dark Taupe #7F684E ΔE 0.063
- Deep Turquoise #017374 ΔE 0.065
- Dark Green Blue #1F6357 ΔE 0.065
Use #556B59 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.