#557B57
Closest named color: Dark Sage (#598556). oklch(54.4% 0.07 145.8), rgb(85, 123, 87).
Aa
White text reads best on this color (4.81:1).
About this color
#557B57 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.070 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 0.032 away. White text reads best on it, at 4.81:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.070) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.35:1 |
| White text | 4.81:1 |
Values
| HEX | #557B57 |
| RGB | rgb(85, 123, 87) |
| HSL | hsl(123, 18%, 41%) |
| OKLCH | oklch(54.4% 0.07 145.8) |
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 #557B57 | 4.81:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #557B57 | 4.35:1 | AA large text | Lc 30.7 | Non-text elements, placeholder text |
| #557B57 text on white | 4.81:1 | AA | Lc 73.4 | Content text, not long reading |
| #557B57 text on black | 4.35:1 | AA large text | Lc -28.3 | 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
#D2DCD2
oklch(88.4% 0.017 145.4)
-
Step 300
300
#B4C6B5
oklch(80.8% 0.031 146.8)
-
Step 400
400
#8DA98E
oklch(70.6% 0.05 146)
-
Step 500
500
#719472
oklch(63.1% 0.064 145.5)
-
Step 600
600 (this color)
#557B57
oklch(54.4% 0.07 145.8)
-
Step 700
700
#486B4A
oklch(49.1% 0.066 145.9)
-
Step 800
800
#3C573D
oklch(42.7% 0.053 145.5)
-
Step 900
900
#334834
oklch(37.8% 0.043 145.9)
-
Step 950
950
#1E2A1F
oklch(27% 0.026 147)
#557B57 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) | #7C7455 | 0.056 |
| Deuteranopia (no green cones) | #767059 | 0.055 |
| Tritanopia (no blue cones) | #517971 | 0.041 |
| Achromatopsia (no color) | #727272 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #557B57
#557B57
oklch(54.4% 0.07 145.8)
- #856286
#856286
oklch(54.5% 0.069 325.6)
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 #557B57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.032
- Military Green #667C3E ΔE 0.037
- Muddy Green #657432 ΔE 0.044
- Dark Moss Green #606C38 ΔE 0.049
- Swamp #698339 ΔE 0.055
- Sea Green #2E8B57 ΔE 0.056
- Dark Olive Green #556B2F ΔE 0.059
- Slate Green #658D6D ΔE 0.061
Use #557B57 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.