#578F85
Closest named color: Dusty Teal (#4C9085). oklch(60.8% 0.061 181.6), rgb(87, 143, 133).
Aa
Black text reads best on this color (5.67:1).
About this color
#578F85 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 61%, its chroma 0.061 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.011 away. Black text reads best on it, at 5.67:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.67:1 |
| White text | 3.70:1 |
Values
| HEX | #578F85 |
| RGB | rgb(87, 143, 133) |
| HSL | hsl(169, 24%, 45%) |
| OKLCH | oklch(60.8% 0.061 181.6) |
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 #578F85 | 3.70:1 | AA large text | Lc -70.0 | Content text, not long reading |
| Black text on #578F85 | 5.67:1 | AA | Lc 39.6 | Non-text elements, placeholder text |
| #578F85 text on white | 3.70:1 | AA large text | Lc 64.5 | Content text, not long reading |
| #578F85 text on black | 5.67:1 | AA | Lc -37.2 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CEDDDA
oklch(88.5% 0.017 182.7)
-
Step 300
300
#ACC7C2
oklch(80.8% 0.03 183.2)
-
Step 400
400
#80ABA2
oklch(70.7% 0.048 180.5)
-
Step 500
500 (this color)
#578F85
oklch(60.8% 0.061 181.6)
-
Step 600
600
#428076
oklch(55.5% 0.067 182.1)
-
Step 700
700
#336C63
oklch(49% 0.062 182)
-
Step 800
800
#2C5851
oklch(42.7% 0.051 182.3)
-
Step 900
900
#284943
oklch(37.8% 0.04 181.1)
-
Step 950
950
#182B27
oklch(27.1% 0.026 179.4)
#578F85 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) | #8A8985 | 0.065 |
| Deuteranopia (no green cones) | #818286 | 0.062 |
| Tritanopia (no blue cones) | #43918C | 0.019 |
| Achromatopsia (no color) | #858585 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #578F85
#578F85
oklch(60.8% 0.061 181.6)
- #A27380
#A27380
oklch(60.7% 0.062 0.9)
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 #578F85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.011
- Sea #3C9992 ΔE 0.033
- Slate Green #658D6D ΔE 0.035
- Grey Teal #5E9B8A ΔE 0.036
- Dull Teal #5F9E8F ΔE 0.045
- Teal Green #0A9396 ΔE 0.046
- Persian Green #2A9D8F ΔE 0.046
- Blue Green #0F9B8E ΔE 0.048
Use #578F85 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.