#355D6B
Closest named color: YInMn Blue (#415A77). oklch(45.5% 0.05 222.6), rgb(53, 93, 107).
Aa
White text reads best on this color (7.16:1).
About this color
#355D6B is a medium-dark, muted teal or cyan. In OKLCH its lightness is 45%, its chroma 0.050 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.029 away. White text reads best on it, at 7.16:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.92:1 |
| White text | 7.16:1 |
Values
| HEX | #355D6B |
| RGB | rgb(53, 93, 107) |
| HSL | hsl(196, 34%, 31%) |
| OKLCH | oklch(45.5% 0.05 222.6) |
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 #355D6B | 7.16:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #355D6B | 2.92:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #355D6B text on white | 7.16:1 | AAA | Lc 84.8 | Fine for body text |
| #355D6B text on black | 2.92:1 | Fails | Lc -17.2 | 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
#CEDCE1
oklch(88.5% 0.017 221.1)
-
Step 300
300
#ADC5CF
oklch(80.9% 0.03 224.8)
-
Step 400
400
#81A8B6
oklch(70.8% 0.047 221.9)
-
Step 500
500
#6092A4
oklch(63.1% 0.06 222.7)
-
Step 600
600
#457C8F
oklch(55.6% 0.065 222.5)
-
Step 700
700
#36687A
oklch(49% 0.061 223.7)
-
Step 800
800 (this color)
#355D6B
oklch(45.5% 0.05 222.6)
-
Step 900
900
#294651
oklch(37.6% 0.04 224.2)
-
Step 950
950
#19292F
oklch(26.9% 0.024 223.4)
#355D6B 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) | #555B6C | 0.042 |
| Deuteranopia (no green cones) | #4D556B | 0.037 |
| Tritanopia (no blue cones) | #196161 | 0.033 |
| Achromatopsia (no color) | #585858 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #355D6B
#355D6B
oklch(45.5% 0.05 222.6)
- #6F4D40
#6F4D40
oklch(45.4% 0.051 41.8)
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 #355D6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.029
- Petrol #005F6A ΔE 0.032
- Dark Aqua #05696B ΔE 0.044
- Slate #516572 ΔE 0.046
- Dark Green Blue #1F6357 ΔE 0.048
- Dusty Grape #545775 ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.052
- Deep Teal #00555A ΔE 0.054
Use #355D6B 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.