#558E6D
Closest named color: Slate Green (#658D6D). oklch(59.8% 0.079 157.5), rgb(85, 142, 109).
Aa
Black text reads best on this color (5.47:1).
About this color
#558E6D is a medium-dark, moderately saturated green. In OKLCH its lightness is 60%, its chroma 0.079 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.018 away. Black text reads best on it, at 5.47:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.079) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.47:1 |
| White text | 3.83:1 |
Values
| HEX | #558E6D |
| RGB | rgb(85, 142, 109) |
| HSL | hsl(145, 25%, 45%) |
| OKLCH | oklch(59.8% 0.079 157.5) |
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 #558E6D | 3.83:1 | AA large text | Lc -71.2 | Content text, not long reading |
| Black text on #558E6D | 5.47:1 | AA | Lc 38.3 | Non-text elements, placeholder text |
| #558E6D text on white | 3.83:1 | AA large text | Lc 65.7 | Content text, not long reading |
| #558E6D text on black | 5.47:1 | AA | Lc -35.9 | 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 500.
-
Step 50
50
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E4ECE7
oklch(93.6% 0.011 158.8)
-
Step 200
200
#CEDED4
oklch(88.6% 0.022 158.5)
-
Step 300
300
#ADC9B7
oklch(81% 0.039 157.2)
-
Step 400
400
#80AD92
oklch(70.7% 0.062 158)
-
Step 500
500 (this color)
#558E6D
oklch(59.8% 0.079 157.5)
-
Step 600
600
#44835F
oklch(55.7% 0.087 157)
-
Step 700
700
#356E4F
oklch(49% 0.079 157.9)
-
Step 800
800
#2D5A41
oklch(42.8% 0.066 157.7)
-
Step 900
900
#294A37
oklch(37.8% 0.051 157.5)
-
Step 950
950
#182B20
oklch(26.9% 0.032 157.9)
#558E6D 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) | #8D866B | 0.073 |
| Deuteranopia (no green cones) | #84806F | 0.071 |
| Tritanopia (no blue cones) | #498D85 | 0.037 |
| Achromatopsia (no color) | #828282 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558E6D
#558E6D
oklch(59.8% 0.079 157.5)
- #9E6D90
#9E6D90
oklch(59.7% 0.079 337.5)
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 #558E6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.018
- Dusty Teal #4C9085 ΔE 0.034
- Dark Sage #598556 ΔE 0.034
- Ocean Green #3D9973 ΔE 0.034
- Light Forest Green #4F9153 ΔE 0.041
- Viridian #1E9167 ΔE 0.042
- Green Grey #77926F ΔE 0.043
- Sea Green #2E8B57 ΔE 0.049
Use #558E6D 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.