#558C76
Closest named color: Slate Green (#658D6D). oklch(59.5% 0.068 166.7), rgb(85, 140, 118).
Aa
Black text reads best on this color (5.39:1).
About this color
#558C76 is a medium-dark, muted green. In OKLCH its lightness is 60%, its chroma 0.068 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.021 away. Black text reads best on it, at 5.39:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.068) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.39:1 |
| White text | 3.88:1 |
Values
| HEX | #558C76 |
| RGB | rgb(85, 140, 118) |
| HSL | hsl(156, 24%, 44%) |
| OKLCH | oklch(59.5% 0.068 166.7) |
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 #558C76 | 3.88:1 | AA large text | Lc -71.8 | Content text, not long reading |
| Black text on #558C76 | 5.39:1 | AA | Lc 37.8 | Non-text elements, placeholder text |
| #558C76 text on white | 3.88:1 | AA large text | Lc 66.2 | Content text, not long reading |
| #558C76 text on black | 5.39:1 | AA | Lc -35.4 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE8
oklch(93.6% 0.01 164.9)
-
Step 200
200
#CEDDD6
oklch(88.4% 0.019 166.3)
-
Step 300
300
#ADC8BC
oklch(80.9% 0.034 166.9)
-
Step 400
400
#81AC99
oklch(70.8% 0.054 165.9)
-
Step 500
500 (this color)
#558C76
oklch(59.5% 0.068 166.7)
-
Step 600
600
#44816A
oklch(55.5% 0.074 167.1)
-
Step 700
700
#366D58
oklch(49.1% 0.068 166.6)
-
Step 800
800
#2D5948
oklch(42.7% 0.057 166.6)
-
Step 900
900
#29493C
oklch(37.6% 0.044 166.2)
-
Step 950
950
#192B23
oklch(27% 0.028 164.8)
#558C76 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) | #8A8575 | 0.069 |
| Deuteranopia (no green cones) | #817E77 | 0.067 |
| Tritanopia (no blue cones) | #468C86 | 0.026 |
| Achromatopsia (no color) | #818181 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558C76
#558C76
oklch(59.5% 0.068 166.7)
- #9D6E87
#9D6E87
oklch(59.4% 0.069 346.2)
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 #558C76, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.021
- Dusty Teal #4C9085 ΔE 0.022
- Dark Sage #598556 ΔE 0.043
- Ocean Green #3D9973 ΔE 0.044
- Sea #3C9992 ΔE 0.047
- Green Grey #77926F ΔE 0.047
- Grey Teal #5E9B8A ΔE 0.049
- Viridian #1E9167 ΔE 0.051
Use #558C76 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.