#334D65
Closest named color: Dark Grey Blue (#29465B). oklch(41% 0.051 247.2), rgb(51, 77, 101).
Aa
White text reads best on this color (8.78:1).
About this color
#334D65 is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.051 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.030 away. White text reads best on it, at 8.78:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.39:1 |
| White text | 8.78:1 |
Values
| HEX | #334D65 |
| RGB | rgb(51, 77, 101) |
| HSL | hsl(209, 33%, 30%) |
| OKLCH | oklch(41% 0.051 247.2) |
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 #334D65 | 8.78:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #334D65 | 2.39:1 | Fails | Lc 14.0 | Not readable |
| #334D65 text on white | 8.78:1 | AAA | Lc 90.0 | Preferred for body text |
| #334D65 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
#E5EAEF
oklch(93.5% 0.009 247.9)
-
Step 200
200
#D1DAE4
oklch(88.4% 0.017 250.9)
-
Step 300
300
#B2C3D3
oklch(80.9% 0.029 246.5)
-
Step 400
400
#89A4BE
oklch(70.7% 0.049 247.5)
-
Step 500
500
#6B8DAD
oklch(63% 0.062 247.3)
-
Step 600
600
#537799
oklch(55.6% 0.067 247.7)
-
Step 700
700
#436482
oklch(49.1% 0.062 246.8)
-
Step 800
800 (this color)
#334D65
oklch(41% 0.051 247.2)
-
Step 900
900
#304456
oklch(37.8% 0.04 246.3)
-
Step 950
950
#1C2832
oklch(27% 0.025 244)
#334D65 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) | #434D66 | 0.022 |
| Deuteranopia (no green cones) | #3D4865 | 0.019 |
| Tritanopia (no blue cones) | #1D5355 | 0.045 |
| Achromatopsia (no color) | #4B4B4B | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334D65
#334D65
oklch(41% 0.051 247.2)
- #5D452B
#5D452B
oklch(41% 0.051 67.8)
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 #334D65, 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 0.039
- Dark Slate Gray #2F4F4F ΔE 0.041
- Deep Teal #00555A ΔE 0.050
- YInMn Blue #415A77 ΔE 0.050
- Deep Sea Blue #015482 ΔE 0.054
- Light Navy #155084 ΔE 0.055
- Dark Teal #014D4E ΔE 0.059
Use #334D65 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.