#355D69
Closest named color: Petrol (#005F6A). oklch(45.4% 0.049 219.2), rgb(53, 93, 105).
Aa
White text reads best on this color (7.18:1).
About this color
#355D69 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 45%, its chroma 0.049 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.031 away. White text reads best on it, at 7.18:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.92:1 |
| White text | 7.18:1 |
Values
| HEX | #355D69 |
| RGB | rgb(53, 93, 105) |
| HSL | hsl(194, 33%, 31%) |
| OKLCH | oklch(45.4% 0.049 219.2) |
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 #355D69 | 7.18:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #355D69 | 2.92:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #355D69 text on white | 7.18:1 | AAA | Lc 84.9 | Fine for body text |
| #355D69 text on black | 2.92:1 | Fails | Lc -17.1 | 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
#CEDCE0
oklch(88.5% 0.016 216.7)
-
Step 300
300
#ADC5CD
oklch(80.8% 0.028 219.8)
-
Step 400
400
#81A8B4
oklch(70.7% 0.046 218.6)
-
Step 500
500
#6092A2
oklch(63% 0.059 220.1)
-
Step 600
600
#457C8D
oklch(55.5% 0.064 220)
-
Step 700
700
#366978
oklch(49.2% 0.06 219.3)
-
Step 800
800 (this color)
#355D69
oklch(45.4% 0.049 219.2)
-
Step 900
900
#29474F
oklch(37.8% 0.038 216.7)
-
Step 950
950
#19292F
oklch(26.9% 0.024 223.4)
#355D69 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) | #555B6A | 0.042 |
| Deuteranopia (no green cones) | #4D5569 | 0.037 |
| Tritanopia (no blue cones) | #1B6161 | 0.030 |
| Achromatopsia (no color) | #575757 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #355D69
#355D69
oklch(45.4% 0.049 219.2)
- #6F4D42
#6F4D42
oklch(45.4% 0.05 38.7)
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 #355D69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.031
- YInMn Blue #415A77 ΔE 0.032
- Dark Aqua #05696B ΔE 0.043
- Dark Green Blue #1F6357 ΔE 0.045
- Slate #516572 ΔE 0.046
- Dusty Grape #545775 ΔE 0.051
- Deep Teal #00555A ΔE 0.052
- Dark Slate Gray #2F4F4F ΔE 0.055
Use #355D69 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.