#356D6B
Closest named color: Dark Aquamarine (#017371). oklch(49.6% 0.059 192.3), rgb(53, 109, 107).
Aa
White text reads best on this color (5.91:1).
About this color
#356D6B is a medium-dark, muted teal or cyan. In OKLCH its lightness is 50%, its chroma 0.059 and its hue 192°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.027 away. White text reads best on it, at 5.91:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.55:1 |
| White text | 5.91:1 |
Values
| HEX | #356D6B |
| RGB | rgb(53, 109, 107) |
| HSL | hsl(178, 35%, 32%) |
| OKLCH | oklch(49.6% 0.059 192.3) |
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 #356D6B | 5.91:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #356D6B | 3.55:1 | AA large text | Lc 24.6 | Dividers and decoration only |
| #356D6B text on white | 5.91:1 | AA | Lc 79.4 | Fine for body text |
| #356D6B text on black | 3.55:1 | AA large text | Lc -22.4 | 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
#E4ECEB
oklch(93.7% 0.009 188.1)
-
Step 200
200
#CEDDDC
oklch(88.6% 0.016 192)
-
Step 300
300
#ACC7C5
oklch(80.9% 0.029 191.1)
-
Step 400
400
#80AAA8
oklch(70.7% 0.045 192.5)
-
Step 500
500
#5E9593
oklch(63.1% 0.058 192.8)
-
Step 600
600
#427F7D
oklch(55.5% 0.064 192.7)
-
Step 700
700 (this color)
#356D6B
oklch(49.6% 0.059 192.3)
-
Step 800
800
#2B5856
oklch(42.8% 0.05 191.7)
-
Step 900
900
#284847
oklch(37.7% 0.038 193.1)
-
Step 950
950
#182A29
oklch(26.9% 0.024 191.4)
#356D6B 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) | #67686B | 0.062 |
| Deuteranopia (no green cones) | #5E616C | 0.059 |
| Tritanopia (no blue cones) | #13706C | 0.021 |
| Achromatopsia (no color) | #646464 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #356D6B
#356D6B
oklch(49.6% 0.059 192.3)
- #805459
#805459
oklch(49.6% 0.059 12)
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 #356D6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.027
- Deep Turquoise #017374 ΔE 0.028
- Dark Aqua #05696B ΔE 0.031
- Deep Aqua #08787F ΔE 0.040
- Bluegreen #017A79 ΔE 0.041
- Slate #516572 ΔE 0.043
- Dark Green Blue #1F6357 ΔE 0.046
- Teal #008080 ΔE 0.058
Use #356D6B 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.