#355571
Closest named color: YInMn Blue (#415A77). oklch(43.7% 0.06 246.1), rgb(53, 85, 113).
Aa
White text reads best on this color (7.80:1).
About this color
#355571 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.060 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.024 away. White text reads best on it, at 7.80:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.68:1 |
| White text | 7.80:1 |
Values
| HEX | #355571 |
| RGB | rgb(53, 85, 113) |
| HSL | hsl(208, 36%, 33%) |
| OKLCH | oklch(43.7% 0.06 246.1) |
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 #355571 | 7.80:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #355571 | 2.68:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #355571 text on white | 7.80:1 | AAA | Lc 87.0 | Fine for body text |
| #355571 text on black | 2.68:1 | Fails | Lc -15.1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBF0
oklch(93.7% 0.009 242.8)
-
Step 200
200
#CFDBE6
oklch(88.6% 0.02 245.7)
-
Step 300
300
#AFC3D6
oklch(80.8% 0.035 246.9)
-
Step 400
400
#84A5C2
oklch(70.8% 0.056 245.2)
-
Step 500
500
#658EB3
oklch(63.1% 0.072 246.5)
-
Step 600
600
#4B789E
oklch(55.6% 0.077 245.3)
-
Step 700
700
#3C6587
oklch(49.2% 0.072 245)
-
Step 800
800 (this color)
#355571
oklch(43.7% 0.06 246.1)
-
Step 900
900
#2C4459
oklch(37.6% 0.047 245.9)
-
Step 950
950
#1A2834
oklch(27% 0.03 245.1)
#355571 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) | #495572 | 0.026 |
| Deuteranopia (no green cones) | #414F70 | 0.022 |
| Tritanopia (no blue cones) | #165C5E | 0.052 |
| Achromatopsia (no color) | #525252 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #355571
#355571
oklch(43.7% 0.06 246.1)
- #684B2D
#684B2D
oklch(43.7% 0.059 66.2)
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 #355571, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.024
- Light Navy Blue #2E5A88 ΔE 0.037
- Deep Sea Blue #015482 ΔE 0.044
- Dusty Grape #545775 ΔE 0.044
- Dusk #4E5481 ΔE 0.045
- Petrol #005F6A ΔE 0.047
- Light Navy #155084 ΔE 0.047
- Dusk Blue #26538D ΔE 0.050
Use #355571 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.