#558587
Closest named color: Steel Grey (#6F828A). oklch(58.3% 0.052 199.2), rgb(85, 133, 135).
Aa
Black text reads best on this color (5.09:1).
About this color
#558587 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 58%, its chroma 0.052 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Grey (#6F828A), ΔE 0.033 away. Black text reads best on it, at 5.09:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Steel Grey (#6F828A) |
| Black text | 5.09:1 |
| White text | 4.12:1 |
Values
| HEX | #558587 |
| RGB | rgb(85, 133, 135) |
| HSL | hsl(182, 23%, 43%) |
| OKLCH | oklch(58.3% 0.052 199.2) |
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 #558587 | 4.12:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #558587 | 5.09:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #558587 text on white | 4.12:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #558587 text on black | 5.09:1 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEB
oklch(93.6% 0.006 197)
-
Step 200
200
#D0DCDC
oklch(88.5% 0.013 196.9)
-
Step 300
300
#B0C6C6
oklch(81% 0.024 196.7)
-
Step 400
400
#86A8A9
oklch(70.7% 0.037 198.6)
-
Step 500
500
#679394
oklch(63.2% 0.048 197.8)
-
Step 600
600 (this color)
#558587
oklch(58.3% 0.052 199.2)
-
Step 700
700
#3E696B
oklch(49% 0.048 199.5)
-
Step 800
800
#335657
oklch(42.7% 0.041 198.1)
-
Step 900
900
#2D4748
oklch(37.7% 0.032 199)
-
Step 950
950
#1B292A
oklch(26.9% 0.019 201.6)
#558587 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) | #7F8187 | 0.054 |
| Deuteranopia (no green cones) | #767A87 | 0.050 |
| Tritanopia (no blue cones) | #418885 | 0.021 |
| Achromatopsia (no color) | #7D7D7D | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558587
#558587
oklch(58.3% 0.052 199.2)
- #986F6F
#986F6F
oklch(58.3% 0.052 18.8)
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 #558587, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Grey #6F828A ΔE 0.033
- Grey Blue #647D8E ΔE 0.033
- Dusty Teal #4C9085 ΔE 0.035
- Battleship Grey #6B7C85 ΔE 0.035
- Slate Gray #708090 ΔE 0.041
- Steel #738595 ΔE 0.045
- Dark Cyan #008B8B ΔE 0.047
- Battleship Gray #6C757D ΔE 0.049
Use #558587 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.