#355E6E
Closest named color: YInMn Blue (#415A77). oklch(45.9% 0.053 225.2), rgb(53, 94, 110).
Aa
White text reads best on this color (7.05:1).
About this color
#355E6E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.053 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.026 away. White text reads best on it, at 7.05:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.97:1 |
| White text | 7.05:1 |
Values
| HEX | #355E6E |
| RGB | rgb(53, 94, 110) |
| HSL | hsl(197, 35%, 32%) |
| OKLCH | oklch(45.9% 0.053 225.2) |
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 #355E6E | 7.05:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #355E6E | 2.97:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #355E6E text on white | 7.05:1 | AAA | Lc 84.3 | Fine for body text |
| #355E6E text on black | 2.97:1 | Fails | Lc -17.6 | 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 800.
-
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
#CEDCE2
oklch(88.6% 0.017 225.2)
-
Step 300
300
#ACC5D0
oklch(80.8% 0.031 226.1)
-
Step 400
400
#80A8B8
oklch(70.8% 0.049 224.4)
-
Step 500
500
#5E92A6
oklch(63.1% 0.063 224.3)
-
Step 600
600
#437C92
oklch(55.6% 0.069 225.3)
-
Step 700
700
#34687C
oklch(49% 0.064 225.5)
-
Step 800
800 (this color)
#355E6E
oklch(45.9% 0.053 225.2)
-
Step 900
900
#284652
oklch(37.6% 0.041 225.6)
-
Step 950
950
#182930
oklch(26.9% 0.026 225.8)
#355E6E 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) | #555C6F | 0.041 |
| Deuteranopia (no green cones) | #4D566E | 0.037 |
| Tritanopia (no blue cones) | #166363 | 0.037 |
| Achromatopsia (no color) | #595959 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #355E6E
#355E6E
oklch(45.9% 0.053 225.2)
- #714E3F
#714E3F
oklch(45.8% 0.053 44.1)
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 #355E6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.026
- Petrol #005F6A ΔE 0.033
- Slate #516572 ΔE 0.043
- Dark Aqua #05696B ΔE 0.043
- Dusty Grape #545775 ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.048
- Denim #3B638C ΔE 0.050
- Dark Green Blue #1F6357 ΔE 0.051
Use #355E6E 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.