#557E56
Closest named color: Dark Sage (#598556). oklch(55.2% 0.076 145), rgb(85, 126, 86).
Aa
White text reads best on this color (4.66:1).
About this color
#557E56 is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.076 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.023 away. White text reads best on it, at 4.66:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.076) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.50:1 |
| White text | 4.66:1 |
Values
| HEX | #557E56 |
| RGB | rgb(85, 126, 86) |
| HSL | hsl(121, 19%, 41%) |
| OKLCH | oklch(55.2% 0.076 145) |
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 #557E56 | 4.66:1 | AA | Lc -77.8 | Fine for body text |
| Black text on #557E56 | 4.50:1 | AA | Lc 31.8 | Non-text elements, placeholder text |
| #557E56 text on white | 4.66:1 | AA | Lc 72.3 | Content text, not long reading |
| #557E56 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
#E6ECE6
oklch(93.7% 0.01 145.5)
-
Step 200
200
#D2DDD2
oklch(88.6% 0.019 145.4)
-
Step 300
300
#B3C7B3
oklch(80.9% 0.035 145.2)
-
Step 400
400
#8CAA8C
oklch(70.7% 0.054 145)
-
Step 500
500
#6F956F
oklch(63.1% 0.07 144.7)
-
Step 600
600 (this color)
#557E56
oklch(55.2% 0.076 145)
-
Step 700
700
#466B47
oklch(48.9% 0.071 145)
-
Step 800
800
#3A583B
oklch(42.8% 0.059 145.2)
-
Step 900
900
#324832
oklch(37.6% 0.046 144.6)
-
Step 950
950
#1D2A1E
oklch(26.9% 0.028 146.7)
#557E56 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) | #807753 | 0.060 |
| Deuteranopia (no green cones) | #797358 | 0.058 |
| Tritanopia (no blue cones) | #517C73 | 0.045 |
| Achromatopsia (no color) | #747474 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #557E56
#557E56
oklch(55.2% 0.076 145)
- #89628B
#89628B
oklch(55.1% 0.077 324.9)
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 #557E56, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.023
- Military Green #667C3E ΔE 0.032
- Muddy Green #657432 ΔE 0.044
- Swamp #698339 ΔE 0.047
- Sea Green #2E8B57 ΔE 0.048
- Slate Green #658D6D ΔE 0.055
- Dark Moss Green #606C38 ΔE 0.055
- Fern Green #548D44 ΔE 0.057
Use #557E56 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.