#558F8B
Closest named color: Dusty Teal (#4C9085). oklch(60.9% 0.061 190), rgb(85, 143, 139).
Aa
Black text reads best on this color (5.68:1).
About this color
#558F8B is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.061 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.014 away. Black text reads best on it, at 5.68:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.68:1 |
| White text | 3.69:1 |
Values
| HEX | #558F8B |
| RGB | rgb(85, 143, 139) |
| HSL | hsl(176, 25%, 45%) |
| OKLCH | oklch(60.9% 0.061 190) |
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 #558F8B | 3.69:1 | AA large text | Lc -69.9 | Content text, not long reading |
| Black text on #558F8B | 5.68:1 | AA | Lc 39.7 | Non-text elements, placeholder text |
| #558F8B text on white | 3.69:1 | AA large text | Lc 64.4 | Content text, not long reading |
| #558F8B text on black | 5.68:1 | AA | Lc -37.3 | 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
#CDDDDB
oklch(88.5% 0.017 187.8)
-
Step 300
300
#ACC7C5
oklch(80.9% 0.029 191.1)
-
Step 400
400
#7EABA7
oklch(70.8% 0.049 189.3)
-
Step 500
500 (this color)
#558F8B
oklch(60.9% 0.061 190)
-
Step 600
600
#3F807C
oklch(55.6% 0.067 190.1)
-
Step 700
700
#316C68
oklch(49.1% 0.062 189.4)
-
Step 800
800
#295855
oklch(42.7% 0.052 189.9)
-
Step 900
900
#274946
oklch(37.9% 0.04 188.3)
-
Step 950
950
#172A29
oklch(26.8% 0.025 191.5)
#558F8B 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) | #89898B | 0.065 |
| Deuteranopia (no green cones) | #7F828C | 0.061 |
| Tritanopia (no blue cones) | #3D928E | 0.020 |
| Achromatopsia (no color) | #858585 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558F8B
#558F8B
oklch(60.9% 0.061 190)
- #A4747A
#A4747A
oklch(60.9% 0.061 10.8)
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 #558F8B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.014
- Sea #3C9992 ΔE 0.031
- Grey Teal #5E9B8A ΔE 0.039
- Teal Green #0A9396 ΔE 0.041
- Slate Green #658D6D ΔE 0.044
- Steel Grey #6F828A ΔE 0.046
- Dull Teal #5F9E8F ΔE 0.046
- Persian Green #2A9D8F ΔE 0.046
Use #558F8B 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.