#557F6D
Closest named color: Dark Sage (#598556). oklch(56% 0.055 165.9), rgb(85, 127, 109).
Aa
Black text reads best on this color (4.64:1).
About this color
#557F6D is a medium-dark, muted green. In OKLCH its lightness is 56%, its chroma 0.055 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.043 away. Black text reads best on it, at 4.64:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.055) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.64:1 |
| White text | 4.52:1 |
Values
| HEX | #557F6D |
| RGB | rgb(85, 127, 109) |
| HSL | hsl(154, 20%, 42%) |
| OKLCH | oklch(56% 0.055 165.9) |
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 #557F6D | 4.52:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #557F6D | 4.64:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #557F6D text on white | 4.52:1 | AA | Lc 71.4 | Content text, not long reading |
| #557F6D text on black | 4.64:1 | AA | Lc -30.3 | Non-text elements, placeholder text |
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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E6EBE9
oklch(93.6% 0.006 170.4)
-
Step 200
200
#D1DCD7
oklch(88.5% 0.014 167.1)
-
Step 300
300
#B3C6BD
oklch(80.9% 0.024 165.7)
-
Step 400
400
#8AA99B
oklch(70.7% 0.04 166.1)
-
Step 500
500
#6D9482
oklch(63.2% 0.051 164.7)
-
Step 600
600 (this color)
#557F6D
oklch(56% 0.055 165.9)
-
Step 700
700
#446A5A
oklch(49.1% 0.051 166.1)
-
Step 800
800
#38574A
oklch(42.8% 0.043 166.3)
-
Step 900
900
#31473D
oklch(37.6% 0.032 164.9)
-
Step 950
950
#1D2A24
oklch(27.1% 0.021 164.8)
#557F6D 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) | #7D796C | 0.055 |
| Deuteranopia (no green cones) | #76746E | 0.053 |
| Tritanopia (no blue cones) | #4B7F7A | 0.021 |
| Achromatopsia (no color) | #767676 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #557F6D
#557F6D
oklch(56% 0.055 165.9)
- #8D687B
#8D687B
oklch(56.1% 0.054 346.8)
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 #557F6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.043
- Slate Green #658D6D ΔE 0.049
- Dusty Teal #4C9085 ΔE 0.051
- Battleship Grey #6B7C85 ΔE 0.052
- Battleship Gray #6C757D ΔE 0.054
- Teal #008080 ΔE 0.055
- Steel Grey #6F828A ΔE 0.058
- Grey Blue #647D8E ΔE 0.059
Use #557F6D 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.