#354D64
Closest named color: Dark Grey Blue (#29465B). oklch(41.1% 0.049 248), rgb(53, 77, 100).
Aa
White text reads best on this color (8.76:1).
About this color
#354D64 is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.049 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.030 away. White text reads best on it, at 8.76:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.39:1 |
| White text | 8.76:1 |
Values
| HEX | #354D64 |
| RGB | rgb(53, 77, 100) |
| HSL | hsl(209, 31%, 30%) |
| OKLCH | oklch(41.1% 0.049 248) |
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 #354D64 | 8.76:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #354D64 | 2.39:1 | Fails | Lc 14.0 | Not readable |
| #354D64 text on white | 8.76:1 | AAA | Lc 90.0 | Fine for body text |
| #354D64 text on black | 2.39:1 | Fails | Lc -12.3 | 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
#B3C3D3
oklch(81% 0.029 248.2)
-
Step 400
400
#8BA4BC
oklch(70.8% 0.045 247.4)
-
Step 500
500
#6E8DAC
oklch(63.1% 0.059 248.8)
-
Step 600
600
#557797
oklch(55.6% 0.063 247.5)
-
Step 700
700
#456481
oklch(49.1% 0.059 247.5)
-
Step 800
800 (this color)
#354D64
oklch(41.1% 0.049 248)
-
Step 900
900
#314455
oklch(37.8% 0.038 246)
-
Step 950
950
#1D2832
oklch(27.1% 0.024 246.3)
#354D64 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) | #444D65 | 0.021 |
| Deuteranopia (no green cones) | #3E4964 | 0.016 |
| Tritanopia (no blue cones) | #225255 | 0.041 |
| Achromatopsia (no color) | #4B4B4B | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #354D64
#354D64
oklch(41.1% 0.049 248)
- #5C462D
#5C462D
oklch(41.1% 0.049 69.4)
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 #354D64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.030
- Charcoal #264653 ΔE 0.040
- Dark Slate Gray #2F4F4F ΔE 0.040
- YInMn Blue #415A77 ΔE 0.050
- Deep Teal #00555A ΔE 0.050
- Deep Sea Blue #015482 ΔE 0.056
- Light Navy #155084 ΔE 0.057
- Charcoal Grey #3C4142 ΔE 0.059
Use #354D64 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.