#558B89
Closest named color: Dusty Teal (#4C9085). oklch(59.9% 0.058 192.7), rgb(85, 139, 137).
Aa
Black text reads best on this color (5.44:1).
About this color
#558B89 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 60%, its chroma 0.058 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.020 away. Black text reads best on it, at 5.44:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.44:1 |
| White text | 3.85:1 |
Values
| HEX | #558B89 |
| RGB | rgb(85, 139, 137) |
| HSL | hsl(178, 24%, 44%) |
| OKLCH | oklch(59.9% 0.058 192.7) |
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 #558B89 | 3.85:1 | AA large text | Lc -71.5 | Content text, not long reading |
| Black text on #558B89 | 5.44:1 | AA | Lc 38.1 | Non-text elements, placeholder text |
| #558B89 text on white | 3.85:1 | AA large text | Lc 66.0 | Content text, not long reading |
| #558B89 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEB
oklch(93.7% 0.009 188.1)
-
Step 200
200
#CEDDDC
oklch(88.6% 0.016 192)
-
Step 300
300
#ADC7C5
oklch(81% 0.028 190.9)
-
Step 400
400
#80AAA8
oklch(70.7% 0.045 192.5)
-
Step 500
500 (this color)
#558B89
oklch(59.9% 0.058 192.7)
-
Step 600
600
#437F7D
oklch(55.6% 0.063 192.7)
-
Step 700
700
#346B6A
oklch(49% 0.058 193.9)
-
Step 800
800
#2C5756
oklch(42.6% 0.048 193.5)
-
Step 900
900
#284847
oklch(37.7% 0.038 193.1)
-
Step 950
950
#182A2A
oklch(26.9% 0.024 195.8)
#558B89 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) | #858689 | 0.061 |
| Deuteranopia (no green cones) | #7B7F8A | 0.056 |
| Tritanopia (no blue cones) | #3F8E8A | 0.020 |
| Achromatopsia (no color) | #828282 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558B89
#558B89
oklch(59.9% 0.058 192.7)
- #9F7276
#9F7276
oklch(59.9% 0.057 13)
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 #558B89, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.020
- Steel Grey #6F828A ΔE 0.039
- Sea #3C9992 ΔE 0.041
- Teal Green #0A9396 ΔE 0.044
- Slate Green #658D6D ΔE 0.046
- Dark Cyan #008B8B ΔE 0.047
- Steel #738595 ΔE 0.047
- Grey Blue #647D8E ΔE 0.047
Use #558B89 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.