#558057
Closest named color: Dark Sage (#598556). oklch(55.7% 0.079 145.5), rgb(85, 128, 87).
Aa
Black text reads best on this color (4.61:1).
About this color
#558057 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.079 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 0.017 away. Black text reads best on it, at 4.61:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.079) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.61:1 |
| White text | 4.55:1 |
Values
| HEX | #558057 |
| RGB | rgb(85, 128, 87) |
| HSL | hsl(123, 20%, 42%) |
| OKLCH | oklch(55.7% 0.079 145.5) |
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 #558057 | 4.55:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #558057 | 4.61:1 | AA | Lc 32.5 | Non-text elements, placeholder text |
| #558057 text on white | 4.55:1 | AA | Lc 71.6 | Content text, not long reading |
| #558057 text on black | 4.61:1 | AA | Lc -30.1 | 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
#F3F6F3
oklch(97% 0.005 145.5)
-
Step 100
100
#E6ECE6
oklch(93.7% 0.01 145.5)
-
Step 200
200
#D1DDD1
oklch(88.5% 0.021 145.4)
-
Step 300
300
#B3C7B3
oklch(80.9% 0.035 145.2)
-
Step 400
400
#8BAA8B
oklch(70.6% 0.056 145)
-
Step 500
500
#6D956F
oklch(63% 0.072 145.9)
-
Step 600
600 (this color)
#558057
oklch(55.7% 0.079 145.5)
-
Step 700
700
#456C47
oklch(49.2% 0.073 145.6)
-
Step 800
800
#39583A
oklch(42.7% 0.061 145.2)
-
Step 900
900
#314832
oklch(37.6% 0.047 145.6)
-
Step 950
950
#1D2A1E
oklch(26.9% 0.028 146.7)
#558057 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) | #827954 | 0.062 |
| Deuteranopia (no green cones) | #7B7459 | 0.061 |
| Tritanopia (no blue cones) | #507E75 | 0.047 |
| Achromatopsia (no color) | #767676 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558057
#558057
oklch(55.7% 0.079 145.5)
- #8B638D
#8B638D
oklch(55.6% 0.079 325)
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 #558057, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.017
- Military Green #667C3E ΔE 0.032
- Swamp #698339 ΔE 0.044
- Sea Green #2E8B57 ΔE 0.045
- Muddy Green #657432 ΔE 0.047
- Slate Green #658D6D ΔE 0.050
- Fern Green #548D44 ΔE 0.053
- Light Forest Green #4F9153 ΔE 0.054
Use #558057 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.