#558C7F
Closest named color: Dusty Teal (#4C9085). oklch(59.8% 0.062 177.3), rgb(85, 140, 127).
Aa
Black text reads best on this color (5.44:1).
About this color
#558C7F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 60%, its chroma 0.062 and its hue 177°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.013 away. Black text reads best on it, at 5.44:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.44:1 |
| White text | 3.85:1 |
Values
| HEX | #558C7F |
| RGB | rgb(85, 140, 127) |
| HSL | hsl(166, 24%, 44%) |
| OKLCH | oklch(59.8% 0.062 177.3) |
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 #558C7F | 3.85:1 | AA large text | Lc -71.5 | Content text, not long reading |
| Black text on #558C7F | 5.44:1 | AA | Lc 38.1 | Non-text elements, placeholder text |
| #558C7F text on white | 3.85:1 | AA large text | Lc 66.0 | Content text, not long reading |
| #558C7F text on black | 5.44:1 | AA | Lc -35.7 | 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
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CEDDD9
oklch(88.5% 0.017 178.2)
-
Step 300
300
#ADC7C0
oklch(80.8% 0.03 177.5)
-
Step 400
400
#80ABA0
oklch(70.7% 0.049 177.3)
-
Step 500
500 (this color)
#558C7F
oklch(59.8% 0.062 177.3)
-
Step 600
600
#448073
oklch(55.5% 0.066 178)
-
Step 700
700
#356C60
oklch(49% 0.062 177.6)
-
Step 800
800
#2C584F
oklch(42.6% 0.051 178.8)
-
Step 900
900
#294941
oklch(37.8% 0.041 176.2)
-
Step 950
950
#182B26
oklch(27.1% 0.027 175.7)
#558C7F 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) | #88867E | 0.065 |
| Deuteranopia (no green cones) | #7F7F80 | 0.063 |
| Tritanopia (no blue cones) | #438D88 | 0.019 |
| Achromatopsia (no color) | #828282 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558C7F
#558C7F
oklch(59.8% 0.062 177.3)
- #9F7080
#9F7080
oklch(59.8% 0.063 357)
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 #558C7F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.013
- Slate Green #658D6D ΔE 0.031
- Sea #3C9992 ΔE 0.041
- Grey Teal #5E9B8A ΔE 0.046
- Teal Green #0A9396 ΔE 0.048
- Dark Cyan #008B8B ΔE 0.048
- Steel Grey #6F828A ΔE 0.049
- Green Grey #77926F ΔE 0.051
Use #558C7F 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.