#558A7C
Closest named color: Dusty Teal (#4C9085). oklch(59.2% 0.061 175.5), rgb(85, 138, 124).
Aa
Black text reads best on this color (5.31:1).
About this color
#558A7C is a medium-dark, muted teal or cyan. In OKLCH its lightness is 59%, its chroma 0.061 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.019 away. Black text reads best on it, at 5.31:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.31:1 |
| White text | 3.95:1 |
Values
| HEX | #558A7C |
| RGB | rgb(85, 138, 124) |
| HSL | hsl(164, 24%, 44%) |
| OKLCH | oklch(59.2% 0.061 175.5) |
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 #558A7C | 3.95:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #558A7C | 5.31:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #558A7C text on white | 3.95:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #558A7C text on black | 5.31:1 | AA | Lc -34.8 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5ECE9
oklch(93.7% 0.008 168.7)
-
Step 200
200
#CFDDD8
oklch(88.6% 0.016 172.6)
-
Step 300
300
#AFC7C0
oklch(81% 0.028 176.2)
-
Step 400
400
#84AA9F
oklch(70.7% 0.044 175.4)
-
Step 500
500
#659588
oklch(63.2% 0.056 175.6)
-
Step 600
600 (this color)
#558A7C
oklch(59.2% 0.061 175.5)
-
Step 700
700
#3B6B5F
oklch(49% 0.056 175.9)
-
Step 800
800
#31584E
oklch(42.8% 0.048 175.6)
-
Step 900
900
#2C4841
oklch(37.7% 0.036 176.7)
-
Step 950
950
#1A2A26
oklch(26.9% 0.023 177.2)
#558A7C 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) | #86847B | 0.063 |
| Deuteranopia (no green cones) | #7D7D7D | 0.061 |
| Tritanopia (no blue cones) | #448B86 | 0.020 |
| Achromatopsia (no color) | #808080 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #558A7C
#558A7C
oklch(59.2% 0.061 175.5)
- #9C6F7F
#9C6F7F
oklch(59.2% 0.061 356)
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 #558A7C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.019
- Slate Green #658D6D ΔE 0.031
- Sea #3C9992 ΔE 0.046
- Dark Cyan #008B8B ΔE 0.048
- Steel Grey #6F828A ΔE 0.049
- Teal Green #0A9396 ΔE 0.051
- Grey Teal #5E9B8A ΔE 0.052
- Dark Sage #598556 ΔE 0.052
Use #558A7C 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.