#557C55
Closest named color: Dark Sage (#598556). oklch(54.6% 0.074 144.5), rgb(85, 124, 85).
Aa
White text reads best on this color (4.77:1).
About this color
#557C55 is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.074 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.028 away. White text reads best on it, at 4.77:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.074) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.40:1 |
| White text | 4.77:1 |
Values
| HEX | #557C55 |
| RGB | rgb(85, 124, 85) |
| HSL | hsl(120, 19%, 41%) |
| OKLCH | oklch(54.6% 0.074 144.5) |
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 #557C55 | 4.77:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #557C55 | 4.40:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #557C55 text on white | 4.77:1 | AA | Lc 73.1 | Content text, not long reading |
| #557C55 text on black | 4.40:1 | AA large text | Lc -28.6 | 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
#B4C7B4
oklch(81% 0.033 145.3)
-
Step 400
400
#8DAA8C
oklch(70.8% 0.054 144.1)
-
Step 500
500
#709570
oklch(63.2% 0.068 144.7)
-
Step 600
600 (this color)
#557C55
oklch(54.6% 0.074 144.5)
-
Step 700
700
#486B48
oklch(49.1% 0.068 144.4)
-
Step 800
800
#3B573B
oklch(42.6% 0.057 144.5)
-
Step 900
900
#334833
oklch(37.7% 0.044 144.6)
-
Step 950
950
#1E2A1E
oklch(27% 0.027 144.8)
#557C55 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) | #7E7553 | 0.058 |
| Deuteranopia (no green cones) | #777157 | 0.056 |
| Tritanopia (no blue cones) | #517A72 | 0.046 |
| Achromatopsia (no color) | #737373 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #557C55
#557C55
oklch(54.6% 0.074 144.5)
- #866189
#866189
oklch(54.5% 0.075 324)
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 #557C55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.028
- Military Green #667C3E ΔE 0.033
- Muddy Green #657432 ΔE 0.042
- Dark Moss Green #606C38 ΔE 0.050
- Swamp #698339 ΔE 0.050
- Sea Green #2E8B57 ΔE 0.053
- Dark Olive Green #556B2F ΔE 0.059
- Slate Green #658D6D ΔE 0.059
Use #557C55 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.