#557E57
Closest named color: Dark Sage (#598556). oklch(55.2% 0.075 145.6), rgb(85, 126, 87).
Aa
White text reads best on this color (4.65:1).
About this color
#557E57 is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.075 and its hue 146°. 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 4.65:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.075) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.50:1 |
| White text | 4.65:1 |
Values
| HEX | #557E57 |
| RGB | rgb(85, 126, 87) |
| HSL | hsl(123, 19%, 41%) |
| OKLCH | oklch(55.2% 0.075 145.6) |
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 #557E57 | 4.65:1 | AA | Lc -77.7 | Fine for body text |
| Black text on #557E57 | 4.50:1 | AA | Lc 31.8 | Non-text elements, placeholder text |
| #557E57 text on white | 4.65:1 | AA | Lc 72.3 | Content text, not long reading |
| #557E57 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
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
#B3C7B4
oklch(80.9% 0.034 146.6)
-
Step 400
400
#8CAA8C
oklch(70.7% 0.054 145)
-
Step 500
500
#6F9570
oklch(63.1% 0.069 145.4)
-
Step 600
600 (this color)
#557E57
oklch(55.2% 0.075 145.6)
-
Step 700
700
#466B48
oklch(49% 0.07 145.7)
-
Step 800
800
#3A583B
oklch(42.8% 0.059 145.2)
-
Step 900
900
#324833
oklch(37.7% 0.045 145.7)
-
Step 950
950
#1D2A1E
oklch(26.9% 0.028 146.7)
#557E57 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) | #7F7755 | 0.059 |
| Deuteranopia (no green cones) | #797359 | 0.058 |
| Tritanopia (no blue cones) | #507C74 | 0.046 |
| Achromatopsia (no color) | #747474 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #557E57
#557E57
oklch(55.2% 0.075 145.6)
- #89638A
#89638A
oklch(55.3% 0.074 325.7)
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 #557E57, 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 0.033
- Muddy Green #657432 ΔE 0.045
- Swamp #698339 ΔE 0.048
- Sea Green #2E8B57 ΔE 0.049
- Slate Green #658D6D ΔE 0.054
- Dark Moss Green #606C38 ΔE 0.055
- Fern Green #548D44 ΔE 0.058
Use #557E57 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.