#557F45
Closest named color: Military Green (#667C3E). oklch(55.1% 0.097 137.5), rgb(85, 127, 69).
Aa
White text reads best on this color (4.65:1).
About this color
#557F45 is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.097 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Military Green (#667C3E), ΔE 0.021 away. White text reads best on it, at 4.65:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Military Green (#667C3E) |
| Black text | 4.50:1 |
| White text | 4.65:1 |
Values
| HEX | #557F45 |
| RGB | rgb(85, 127, 69) |
| HSL | hsl(103, 30%, 38%) |
| OKLCH | oklch(55.1% 0.097 137.5) |
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 #557F45 | 4.65:1 | AA | Lc -77.7 | Fine for body text |
| Black text on #557F45 | 4.50:1 | AA | Lc 31.8 | Non-text elements, placeholder text |
| #557F45 text on white | 4.65:1 | AA | Lc 72.3 | Content text, not long reading |
| #557F45 text on black | 4.50:1 | AA | Lc -29.4 | 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
#E6ECE4
oklch(93.6% 0.012 137.8)
-
Step 200
200
#D2DDCE
oklch(88.5% 0.023 137.3)
-
Step 300
300
#B3C8AC
oklch(80.9% 0.045 137.9)
-
Step 400
400
#8CAB80
oklch(70.6% 0.07 137.1)
-
Step 500
500
#6F9660
oklch(63% 0.089 137.3)
-
Step 600
600 (this color)
#557F45
oklch(55.1% 0.097 137.5)
-
Step 700
700
#476D38
oklch(49.2% 0.091 137.4)
-
Step 800
800
#3A592F
oklch(42.8% 0.076 137.9)
-
Step 900
900
#32492A
oklch(37.7% 0.058 137.9)
-
Step 950
950
#1E2B19
oklch(27.1% 0.037 137.3)
#557F45 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) | #827740 | 0.064 |
| Deuteranopia (no green cones) | #7C7348 | 0.064 |
| Tritanopia (no blue cones) | #537B71 | 0.068 |
| Achromatopsia (no color) | #747474 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #557F45
#557F45
oklch(55.1% 0.097 137.5)
- #895F97
#895F97
oklch(55.1% 0.097 317.4)
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 #557F45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Military Green #667C3E ΔE 0.021
- Dark Sage #598556 ΔE 0.026
- Swamp #698339 ΔE 0.031
- Muddy Green #657432 ΔE 0.035
- Sea Green #2E8B57 ΔE 0.043
- Fern Green #548D44 ΔE 0.043
- Murky Green #6C7A0E ΔE 0.046
- Olive Green #677A04 ΔE 0.046
Use #557F45 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.