#354E65
Closest named color: Dark Grey Blue (#29465B). oklch(41.4% 0.049 247), rgb(53, 78, 101).
Aa
White text reads best on this color (8.64:1).
About this color
#354E65 is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.049 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.033 away. White text reads best on it, at 8.64:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.42:1 |
| White text | 8.64:1 |
Values
| HEX | #354E65 |
| RGB | rgb(53, 78, 101) |
| HSL | hsl(209, 31%, 30%) |
| OKLCH | oklch(41.4% 0.049 247) |
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 #354E65 | 8.64:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #354E65 | 2.42:1 | Fails | Lc 14.4 | Not readable |
| #354E65 text on white | 8.64:1 | AAA | Lc 89.6 | Fine for body text |
| #354E65 text on black | 2.42:1 | Fails | Lc -12.6 | Not readable |
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
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D1DAE3
oklch(88.4% 0.016 248)
-
Step 300
300
#B2C3D3
oklch(80.9% 0.029 246.5)
-
Step 400
400
#8AA4BC
oklch(70.7% 0.046 246.3)
-
Step 500
500
#6D8DAC
oklch(63.1% 0.059 248)
-
Step 600
600
#547797
oklch(55.6% 0.064 246.8)
-
Step 700
700
#446481
oklch(49.1% 0.06 246.7)
-
Step 800
800 (this color)
#354E65
oklch(41.4% 0.049 247)
-
Step 900
900
#314455
oklch(37.8% 0.038 246)
-
Step 950
950
#1D2832
oklch(27.1% 0.024 246.3)
#354E65 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) | #454E66 | 0.022 |
| Deuteranopia (no green cones) | #3F4965 | 0.019 |
| Tritanopia (no blue cones) | #215356 | 0.041 |
| Achromatopsia (no color) | #4C4C4C | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #354E65
#354E65
oklch(41.4% 0.049 247)
- #5E462E
#5E462E
oklch(41.4% 0.049 65.8)
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 #354E65, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.033
- Dark Slate Gray #2F4F4F ΔE 0.041
- Charcoal #264653 ΔE 0.042
- YInMn Blue #415A77 ΔE 0.047
- Deep Teal #00555A ΔE 0.050
- Deep Sea Blue #015482 ΔE 0.055
- Light Navy #155084 ΔE 0.056
- Petrol #005F6A ΔE 0.058
Use #354E65 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.