#557B4D
Closest named color: Military Green (#667C3E). oklch(54.2% 0.082 140.2), rgb(85, 123, 77).
Aa
White text reads best on this color (4.85:1).
About this color
#557B4D is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.082 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Military Green (#667C3E), ΔE 0.027 away. White text reads best on it, at 4.85:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.082) |
| Temperature | in between |
| Nearest name | Military Green (#667C3E) |
| Black text | 4.32:1 |
| White text | 4.85:1 |
Values
| HEX | #557B4D |
| RGB | rgb(85, 123, 77) |
| HSL | hsl(110, 23%, 39%) |
| OKLCH | oklch(54.2% 0.082 140.2) |
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 #557B4D | 4.85:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #557B4D | 4.32:1 | AA large text | Lc 30.5 | Non-text elements, placeholder text |
| #557B4D text on white | 4.85:1 | AA | Lc 73.6 | Content text, not long reading |
| #557B4D text on black | 4.32:1 | AA large text | Lc -28.1 | 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 600.
-
Step 50
50
#F4F6F3
oklch(97.1% 0.004 134.8)
-
Step 100
100
#E6ECE5
oklch(93.7% 0.011 141.3)
-
Step 200
200
#D2DDD0
oklch(88.6% 0.021 140.9)
-
Step 300
300
#B4C7B1
oklch(80.9% 0.037 141.4)
-
Step 400
400
#8DAA87
oklch(70.6% 0.059 140.3)
-
Step 500
500
#71956A
oklch(63.1% 0.075 140.5)
-
Step 600
600 (this color)
#557B4D
oklch(54.2% 0.082 140.2)
-
Step 700
700
#496B42
oklch(49% 0.075 140.2)
-
Step 800
800
#3C5836
oklch(42.8% 0.064 140.1)
-
Step 900
900
#33482F
oklch(37.6% 0.049 140.5)
-
Step 950
950
#1E2A1C
oklch(26.9% 0.03 141)
#557B4D 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) | #7E744A | 0.059 |
| Deuteranopia (no green cones) | #787050 | 0.058 |
| Tritanopia (no blue cones) | #53786F | 0.054 |
| Achromatopsia (no color) | #717171 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #557B4D
#557B4D
oklch(54.2% 0.082 140.2)
- #855F8D
#855F8D
oklch(54.2% 0.083 320.5)
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 #557B4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Military Green #667C3E ΔE 0.027
- Dark Sage #598556 ΔE 0.030
- Muddy Green #657432 ΔE 0.034
- Dark Moss Green #606C38 ΔE 0.044
- Swamp #698339 ΔE 0.045
- Dark Olive Green #556B2F ΔE 0.051
- Sea Green #2E8B57 ΔE 0.052
- Murky Green #6C7A0E ΔE 0.057
Use #557B4D 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.