#355879
Closest named color: YInMn Blue (#415A77). oklch(44.9% 0.068 248.2), rgb(53, 88, 121).
Aa
White text reads best on this color (7.43:1).
About this color
#355879 is a dark, muted blue. In OKLCH its lightness is 45%, its chroma 0.068 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.017 away. White text reads best on it, at 7.43:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.82:1 |
| White text | 7.43:1 |
Values
| HEX | #355879 |
| RGB | rgb(53, 88, 121) |
| HSL | hsl(209, 39%, 34%) |
| OKLCH | oklch(44.9% 0.068 248.2) |
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 #355879 | 7.43:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #355879 | 2.82:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #355879 text on white | 7.43:1 | AAA | Lc 85.7 | Fine for body text |
| #355879 text on black | 2.82:1 | Fails | Lc -16.3 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CEDBE7
oklch(88.5% 0.022 245.9)
-
Step 300
300
#ADC3DA
oklch(80.8% 0.041 249.5)
-
Step 400
400
#81A5C7
oklch(70.8% 0.064 247.3)
-
Step 500
500
#618EB9
oklch(63.1% 0.082 248.1)
-
Step 600
600
#4777A5
oklch(55.5% 0.089 248.7)
-
Step 700
700
#38648D
oklch(49% 0.082 248.3)
-
Step 800
800 (this color)
#355879
oklch(44.9% 0.068 248.2)
-
Step 900
900
#2A445D
oklch(37.7% 0.054 248.5)
-
Step 950
950
#192836
oklch(27% 0.033 247.4)
#355879 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) | #4A597A | 0.027 |
| Deuteranopia (no green cones) | #415278 | 0.021 |
| Tritanopia (no blue cones) | #0A6063 | 0.059 |
| Achromatopsia (no color) | #555555 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #355879
#355879
oklch(44.9% 0.068 248.2)
- #6E4D29
#6E4D29
oklch(44.8% 0.068 67)
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 #355879, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.017
- Light Navy Blue #2E5A88 ΔE 0.024
- Dusk #4E5481 ΔE 0.038
- Dusty Grape #545775 ΔE 0.041
- Deep Sea Blue #015482 ΔE 0.041
- Denim #3B638C ΔE 0.042
- Denim Blue #3B5B92 ΔE 0.042
- Dusk Blue #26538D ΔE 0.042
Use #355879 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.