#578D8A
Closest named color: Dusty Teal (#4C9085). oklch(60.5% 0.058 191.2), rgb(87, 141, 138).
Aa
Black text reads best on this color (5.58:1).
About this color
#578D8A is a medium-dark, muted teal or cyan. In OKLCH its lightness is 60%, its chroma 0.058 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.017 away. Black text reads best on it, at 5.58:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.58:1 |
| White text | 3.76:1 |
Values
| HEX | #578D8A |
| RGB | rgb(87, 141, 138) |
| HSL | hsl(177, 24%, 45%) |
| OKLCH | oklch(60.5% 0.058 191.2) |
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 #578D8A | 3.76:1 | AA large text | Lc -70.6 | Content text, not long reading |
| Black text on #578D8A | 5.58:1 | AA | Lc 39.0 | Non-text elements, placeholder text |
| #578D8A text on white | 3.76:1 | AA large text | Lc 65.1 | Content text, not long reading |
| #578D8A text on black | 5.58:1 | AA | Lc -36.6 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEB
oklch(93.7% 0.009 188.1)
-
Step 200
200
#CEDDDB
oklch(88.6% 0.016 187.3)
-
Step 300
300
#ADC7C5
oklch(81% 0.028 190.9)
-
Step 400
400
#80AAA7
oklch(70.7% 0.045 190.7)
-
Step 500
500 (this color)
#578D8A
oklch(60.5% 0.058 191.2)
-
Step 600
600
#437F7C
oklch(55.5% 0.063 191.3)
-
Step 700
700
#356B69
oklch(49% 0.058 192.3)
-
Step 800
800
#2C5855
oklch(42.8% 0.049 189.7)
-
Step 900
900
#294846
oklch(37.7% 0.037 190.4)
-
Step 950
950
#182A29
oklch(26.9% 0.024 191.4)
#578D8A 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) | #87888A | 0.061 |
| Deuteranopia (no green cones) | #7D818B | 0.056 |
| Tritanopia (no blue cones) | #42908C | 0.019 |
| Achromatopsia (no color) | #848484 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #578D8A
#578D8A
oklch(60.5% 0.058 191.2)
- #A17479
#A17479
oklch(60.6% 0.057 11.5)
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 #578D8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.017
- Sea #3C9992 ΔE 0.037
- Steel Grey #6F828A ΔE 0.041
- Grey Teal #5E9B8A ΔE 0.044
- Slate Green #658D6D ΔE 0.044
- Teal Green #0A9396 ΔE 0.044
- Steel #738595 ΔE 0.047
- Dark Cyan #008B8B ΔE 0.050
Use #578D8A 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.