#356C7B
Closest named color: Slate (#516572). oklch(50% 0.063 217.9), rgb(53, 108, 123).
Aa
White text reads best on this color (5.86:1).
About this color
#356C7B is a medium-dark, muted teal or cyan. In OKLCH its lightness is 50%, its chroma 0.063 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.034 away. White text reads best on it, at 5.86:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.58:1 |
| White text | 5.86:1 |
Values
| HEX | #356C7B |
| RGB | rgb(53, 108, 123) |
| HSL | hsl(193, 40%, 35%) |
| OKLCH | oklch(50% 0.063 217.9) |
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 #356C7B | 5.86:1 | AA | Lc -84.4 | Fine for body text |
| Black text on #356C7B | 3.58:1 | AA large text | Lc 24.9 | Dividers and decoration only |
| #356C7B text on white | 5.86:1 | AA | Lc 79.2 | Fine for body text |
| #356C7B text on black | 3.58:1 | AA large text | Lc -22.6 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CEDCE0
oklch(88.5% 0.016 216.7)
-
Step 300
300
#ACC6CE
oklch(81% 0.03 218.3)
-
Step 400
400
#7FA8B5
oklch(70.6% 0.048 219.3)
-
Step 500
500
#5D93A2
oklch(63.1% 0.061 217.3)
-
Step 600
600
#417D8E
oklch(55.6% 0.068 218.5)
-
Step 700
700 (this color)
#356C7B
oklch(50% 0.063 217.9)
-
Step 800
800
#2B5662
oklch(42.7% 0.052 218.2)
-
Step 900
900
#274750
oklch(37.7% 0.041 217.9)
-
Step 950
950
#182A2F
oklch(27.2% 0.025 217.2)
#356C7B 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) | #62697C | 0.054 |
| Deuteranopia (no green cones) | #58617B | 0.050 |
| Tritanopia (no blue cones) | #007171 | 0.037 |
| Achromatopsia (no color) | #656565 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #356C7B
#356C7B
oklch(50% 0.063 217.9)
- #835749
#835749
oklch(50.1% 0.063 38.4)
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 #356C7B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.034
- Deep Turquoise #017374 ΔE 0.036
- Deep Aqua #08787F ΔE 0.039
- Dark Aquamarine #017371 ΔE 0.040
- Dark Aqua #05696B ΔE 0.041
- Sea Blue #047495 ΔE 0.044
- Denim #3B638C ΔE 0.045
- Metallic Blue #4F738E ΔE 0.047
Use #356C7B 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.