#366565
Closest named color: Dark Aqua (#05696B). oklch(47.4% 0.051 195.6), rgb(54, 101, 101).
Aa
White text reads best on this color (6.54:1).
About this color
#366565 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.051 and its hue 196°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.028 away. White text reads best on it, at 6.54:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.20:1 |
| White text | 6.54:1 |
Values
| HEX | #366565 |
| RGB | rgb(54, 101, 101) |
| HSL | hsl(180, 30%, 30%) |
| OKLCH | oklch(47.4% 0.051 195.6) |
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 #366565 | 6.54:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #366565 | 3.20:1 | AA large text | Lc 21.7 | Dividers and decoration only |
| #366565 text on white | 6.54:1 | AA | Lc 82.3 | Fine for body text |
| #366565 text on black | 3.20:1 | AA large text | Lc -19.6 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEB
oklch(93.6% 0.006 197)
-
Step 200
200
#CFDCDC
oklch(88.5% 0.014 196.9)
-
Step 300
300
#AFC6C6
oklch(80.9% 0.025 196.7)
-
Step 400
400
#84A9A8
oklch(70.7% 0.04 194.2)
-
Step 500
500
#649393
oklch(63% 0.051 195.9)
-
Step 600
600
#4A7E7E
oklch(55.7% 0.056 195.7)
-
Step 700
700 (this color)
#366565
oklch(47.4% 0.051 195.6)
-
Step 800
800
#315656
oklch(42.6% 0.042 195.7)
-
Step 900
900
#2C4747
oklch(37.6% 0.033 195.8)
-
Step 950
950
#1A2A2A
oklch(27.1% 0.021 196)
#366565 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) | #606165 | 0.054 |
| Deuteranopia (no green cones) | #575B65 | 0.049 |
| Tritanopia (no blue cones) | #1E6865 | 0.020 |
| Achromatopsia (no color) | #5D5D5D | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #366565
#366565
oklch(47.4% 0.051 195.6)
- #765052
#765052
oklch(47.3% 0.051 15.7)
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 #366565, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.028
- Dark Green Blue #1F6357 ΔE 0.032
- Slate #516572 ΔE 0.041
- Petrol #005F6A ΔE 0.041
- Dark Aquamarine #017371 ΔE 0.045
- Deep Turquoise #017374 ΔE 0.045
- YInMn Blue #415A77 ΔE 0.054
- Deep Aqua #08787F ΔE 0.061
Use #366565 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.