#558190
Closest named color: Grey Blue (#647D8E). oklch(57.7% 0.053 221.4), rgb(85, 129, 144).
Aa
Black text reads best on this color (4.92:1).
About this color
#558190 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 58%, its chroma 0.053 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.020 away. Black text reads best on it, at 4.92:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.92:1 |
| White text | 4.26:1 |
Values
| HEX | #558190 |
| RGB | rgb(85, 129, 144) |
| HSL | hsl(195, 26%, 45%) |
| OKLCH | oklch(57.7% 0.053 221.4) |
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 #558190 | 4.26:1 | AA large text | Lc -74.9 | Content text, not long reading |
| Black text on #558190 | 4.92:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #558190 text on white | 4.26:1 | AA large text | Lc 69.4 | Content text, not long reading |
| #558190 text on black | 4.92:1 | AA | Lc -32.3 | 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 600.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#D0DBDF
oklch(88.4% 0.013 221.4)
-
Step 300
300
#B1C5CC
oklch(81% 0.024 220.8)
-
Step 400
400
#87A7B2
oklch(70.8% 0.039 220.8)
-
Step 500
500
#68919F
oklch(63.2% 0.05 221.1)
-
Step 600
600 (this color)
#558190
oklch(57.7% 0.053 221.4)
-
Step 700
700
#3F6775
oklch(49% 0.05 222.3)
-
Step 800
800
#35545F
oklch(42.6% 0.041 222.4)
-
Step 900
900
#2E464E
oklch(37.8% 0.033 220.7)
-
Step 950
950
#1B292E
oklch(27% 0.021 222)
#558190 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) | #787F91 | 0.045 |
| Deuteranopia (no green cones) | #6F7890 | 0.040 |
| Tritanopia (no blue cones) | #3D8686 | 0.034 |
| Achromatopsia (no color) | #7B7B7B | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558190
#558190
oklch(57.7% 0.053 221.4)
- #956F61
#956F61
oklch(57.6% 0.053 41.1)
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 #558190, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.020
- Battleship Grey #6B7C85 ΔE 0.030
- Stormy Blue #507B9C ΔE 0.030
- Steel Grey #6F828A ΔE 0.033
- Slate Gray #708090 ΔE 0.033
- Cerulean #457B9D ΔE 0.035
- Steel #738595 ΔE 0.041
- Metallic Blue #4F738E ΔE 0.043
Use #558190 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.