#558490
Closest named color: Grey Blue (#647D8E). oklch(58.4% 0.054 215.6), rgb(85, 132, 144).
Aa
Black text reads best on this color (5.08:1).
About this color
#558490 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 58%, its chroma 0.054 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.025 away. Black text reads best on it, at 5.08:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 5.08:1 |
| White text | 4.12:1 |
Values
| HEX | #558490 |
| RGB | rgb(85, 132, 144) |
| HSL | hsl(192, 26%, 45%) |
| OKLCH | oklch(58.4% 0.054 215.6) |
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 #558490 | 4.12:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #558490 | 5.08:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #558490 text on white | 4.12:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #558490 text on black | 5.08:1 | AA | Lc -33.4 | 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
#D0DCDF
oklch(88.6% 0.014 214.4)
-
Step 300
300
#B0C5CB
oklch(80.9% 0.024 216.8)
-
Step 400
400
#86A7B0
oklch(70.7% 0.039 216.2)
-
Step 500
500
#66919D
oklch(63% 0.05 217)
-
Step 600
600 (this color)
#558490
oklch(58.4% 0.054 215.6)
-
Step 700
700
#3D6873
oklch(49% 0.051 215.9)
-
Step 800
800
#33555E
oklch(42.7% 0.042 216.4)
-
Step 900
900
#2D464D
oklch(37.7% 0.033 217.2)
-
Step 950
950
#1B292D
oklch(27% 0.02 217.4)
#558490 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) | #7B8191 | 0.048 |
| Deuteranopia (no green cones) | #727A90 | 0.044 |
| Tritanopia (no blue cones) | #3D8988 | 0.032 |
| Achromatopsia (no color) | #7D7D7D | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558490
#558490
oklch(58.4% 0.054 215.6)
- #997066
#997066
oklch(58.4% 0.055 34.1)
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 #558490, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.025
- Steel Grey #6F828A ΔE 0.031
- Battleship Grey #6B7C85 ΔE 0.032
- Slate Gray #708090 ΔE 0.034
- Stormy Blue #507B9C ΔE 0.038
- Steel #738595 ΔE 0.039
- Cerulean #457B9D ΔE 0.042
- Dusty Teal #4C9085 ΔE 0.045
Use #558490 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.