#558997
Closest named color: Steel Grey (#6F828A). oklch(59.9% 0.059 216.8), rgb(85, 137, 151).
Aa
Black text reads best on this color (5.41:1).
About this color
#558997 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 60%, its chroma 0.059 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Grey (#6F828A), ΔE 0.035 away. Black text reads best on it, at 5.41:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Steel Grey (#6F828A) |
| Black text | 5.41:1 |
| White text | 3.88:1 |
Values
| HEX | #558997 |
| RGB | rgb(85, 137, 151) |
| HSL | hsl(193, 28%, 46%) |
| OKLCH | oklch(59.9% 0.059 216.8) |
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 #558997 | 3.88:1 | AA large text | Lc -71.7 | Content text, not long reading |
| Black text on #558997 | 5.41:1 | AA | Lc 37.9 | Non-text elements, placeholder text |
| #558997 text on white | 3.88:1 | AA large text | Lc 66.2 | Content text, not long reading |
| #558997 text on black | 5.41:1 | AA | Lc -35.5 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBED
oklch(93.5% 0.008 216.6)
-
Step 200
200
#CEDCE0
oklch(88.5% 0.016 216.7)
-
Step 300
300
#ADC6CD
oklch(81% 0.029 216.5)
-
Step 400
400
#80A8B4
oklch(70.7% 0.047 218.2)
-
Step 500
500 (this color)
#558997
oklch(59.9% 0.059 216.8)
-
Step 600
600
#437D8C
oklch(55.6% 0.065 216.6)
-
Step 700
700
#356977
oklch(49.1% 0.06 217.5)
-
Step 800
800
#2C5661
oklch(42.7% 0.05 216.8)
-
Step 900
900
#28474F
oklch(37.7% 0.039 216.1)
-
Step 950
950
#182A2E
oklch(27.1% 0.025 213.2)
#558997 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) | #7F8698 | 0.052 |
| Deuteranopia (no green cones) | #757E97 | 0.048 |
| Tritanopia (no blue cones) | #388E8D | 0.035 |
| Achromatopsia (no color) | #818181 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558997
#558997
oklch(59.9% 0.059 216.8)
- #A07467
#A07467
oklch(60% 0.059 37.1)
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 #558997, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Grey #6F828A ΔE 0.035
- Grey Blue #647D8E ΔE 0.035
- Steel #738595 ΔE 0.036
- Slate Gray #708090 ΔE 0.037
- Dusty Blue #5A86AD ΔE 0.039
- Light Slate Gray #778899 ΔE 0.041
- Dusty Teal #4C9085 ΔE 0.041
- Off Blue #5684AE ΔE 0.043
Use #558997 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.