#356B81
Closest named color: Denim (#3B638C). oklch(50% 0.067 227), rgb(53, 107, 129).
Aa
White text reads best on this color (5.87:1).
About this color
#356B81 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 50%, its chroma 0.067 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.034 away. White text reads best on it, at 5.87:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.57:1 |
| White text | 5.87:1 |
Values
| HEX | #356B81 |
| RGB | rgb(53, 107, 129) |
| HSL | hsl(197, 42%, 36%) |
| OKLCH | oklch(50% 0.067 227) |
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 #356B81 | 5.87:1 | AA | Lc -84.5 | Fine for body text |
| Black text on #356B81 | 3.57:1 | AA large text | Lc 24.8 | Dividers and decoration only |
| #356B81 text on white | 5.87:1 | AA | Lc 79.3 | Fine for body text |
| #356B81 text on black | 3.57:1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CDDCE2
oklch(88.5% 0.018 223.6)
-
Step 300
300
#ACC5D1
oklch(80.9% 0.032 228.3)
-
Step 400
400
#7FA8BA
oklch(70.8% 0.052 226.7)
-
Step 500
500
#5C92A9
oklch(63.1% 0.067 226.9)
-
Step 600
600
#417C94
oklch(55.6% 0.072 226.8)
-
Step 700
700 (this color)
#356B81
oklch(50% 0.067 227)
-
Step 800
800
#2B5567
oklch(42.7% 0.056 228.1)
-
Step 900
900
#274653
oklch(37.6% 0.043 226.9)
-
Step 950
950
#172931
oklch(26.9% 0.028 227.9)
#356B81 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) | #5F6982 | 0.050 |
| Deuteranopia (no green cones) | #546181 | 0.044 |
| Tritanopia (no blue cones) | #007172 | 0.044 |
| Achromatopsia (no color) | #646464 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #356B81
#356B81
oklch(50% 0.067 227)
- #835742
#835742
oklch(50% 0.067 46.3)
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 #356B81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.034
- Slate #516572 ΔE 0.036
- Sea Blue #047495 ΔE 0.038
- Metallic Blue #4F738E ΔE 0.043
- Deep Aqua #08787F ΔE 0.044
- Deep Turquoise #017374 ΔE 0.045
- Ocean Blue #03719C ΔE 0.045
- Peacock Blue #016795 ΔE 0.045
Use #356B81 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.