#558C7A
Closest named color: Dusty Teal (#4C9085). oklch(59.6% 0.065 171.2), rgb(85, 140, 122).
Aa
Black text reads best on this color (5.41:1).
About this color
#558C7A is a medium-dark, muted teal or cyan. In OKLCH its lightness is 60%, its chroma 0.065 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.017 away. Black text reads best on it, at 5.41:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.41:1 |
| White text | 3.87:1 |
Values
| HEX | #558C7A |
| RGB | rgb(85, 140, 122) |
| HSL | hsl(160, 24%, 44%) |
| OKLCH | oklch(59.6% 0.065 171.2) |
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 #558C7A | 3.87:1 | AA large text | Lc -71.6 | Content text, not long reading |
| Black text on #558C7A | 5.41:1 | AA | Lc 38.0 | Non-text elements, placeholder text |
| #558C7A text on white | 3.87:1 | AA large text | Lc 66.1 | Content text, not long reading |
| #558C7A text on black | 5.41:1 | AA | Lc -35.5 | 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
#E4ECE9
oklch(93.6% 0.009 171.8)
-
Step 200
200
#CEDDD7
oklch(88.5% 0.018 170)
-
Step 300
300
#ADC8BE
oklch(81% 0.032 171.1)
-
Step 400
400
#81AB9C
oklch(70.6% 0.05 170.9)
-
Step 500
500 (this color)
#558C7A
oklch(59.6% 0.065 171.2)
-
Step 600
600
#44816E
oklch(55.6% 0.071 171.3)
-
Step 700
700
#356D5C
oklch(49.1% 0.066 171.4)
-
Step 800
800
#2D594B
oklch(42.8% 0.055 170.8)
-
Step 900
900
#29493F
oklch(37.7% 0.042 172)
-
Step 950
950
#182B25
oklch(27% 0.027 172.2)
#558C7A 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) | #898579 | 0.067 |
| Deuteranopia (no green cones) | #807F7B | 0.064 |
| Tritanopia (no blue cones) | #458D87 | 0.022 |
| Achromatopsia (no color) | #818181 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558C7A
#558C7A
oklch(59.6% 0.065 171.2)
- #9E6F84
#9E6F84
oklch(59.6% 0.066 350.8)
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 #558C7A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.017
- Slate Green #658D6D ΔE 0.025
- Sea #3C9992 ΔE 0.044
- Grey Teal #5E9B8A ΔE 0.047
- Ocean Green #3D9973 ΔE 0.047
- Green Grey #77926F ΔE 0.048
- Dark Sage #598556 ΔE 0.049
- Dark Cyan #008B8B ΔE 0.051
Use #558C7A 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.