#557F5C
Closest named color: Dark Sage (#598556). oklch(55.5% 0.071 148.9), rgb(85, 127, 92).
Aa
White text reads best on this color (4.58:1).
About this color
#557F5C is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.071 and its hue 149°. 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 4.58:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.071) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.57:1 |
| White text | 4.58:1 |
Values
| HEX | #557F5C |
| RGB | rgb(85, 127, 92) |
| HSL | hsl(130, 20%, 42%) |
| OKLCH | oklch(55.5% 0.071 148.9) |
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 #557F5C | 4.58:1 | AA | Lc -77.3 | Fine for body text |
| Black text on #557F5C | 4.57:1 | AA | Lc 32.3 | Non-text elements, placeholder text |
| #557F5C text on white | 4.58:1 | AA | Lc 71.8 | Content text, not long reading |
| #557F5C text on black | 4.57:1 | AA | Lc -29.9 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E6ECE6
oklch(93.7% 0.01 145.5)
-
Step 200
200
#D1DDD3
oklch(88.6% 0.019 150.5)
-
Step 300
300
#B3C7B5
oklch(80.9% 0.033 148.1)
-
Step 400
400
#8BAA8F
oklch(70.7% 0.052 148.6)
-
Step 500
500
#6E9574
oklch(63.2% 0.065 148.9)
-
Step 600
600 (this color)
#557F5C
oklch(55.5% 0.071 148.9)
-
Step 700
700
#456B4C
oklch(49% 0.066 149.3)
-
Step 800
800
#39573E
oklch(42.5% 0.055 148.9)
-
Step 900
900
#314835
oklch(37.6% 0.043 149.3)
-
Step 950
950
#1D2A1F
oklch(26.9% 0.027 149)
#557F5C 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) | #80785A | 0.060 |
| Deuteranopia (no green cones) | #79745E | 0.057 |
| Tritanopia (no blue cones) | #4F7D76 | 0.041 |
| Achromatopsia (no color) | #757575 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #557F5C
#557F5C
oklch(55.5% 0.071 148.9)
- #8B6488
#8B6488
oklch(55.6% 0.072 329.1)
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 #557F5C, 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 0.038
- Slate Green #658D6D ΔE 0.049
- Sea Green #2E8B57 ΔE 0.050
- Muddy Green #657432 ΔE 0.051
- Swamp #698339 ΔE 0.052
- Viridian #1E9167 ΔE 0.059
- Light Forest Green #4F9153 ΔE 0.060
Use #557F5C 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.