#334668
Closest named color: Dark Grey Blue (#29465B). oklch(39.4% 0.063 261.6), rgb(51, 70, 104).
Aa
White text reads best on this color (9.47:1).
About this color
#334668 is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.063 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.027 away. White text reads best on it, at 9.47:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.21:1 |
| White text | 9.47:1 |
Values
| HEX | #334668 |
| RGB | rgb(51, 70, 104) |
| HSL | hsl(218, 34%, 30%) |
| OKLCH | oklch(39.4% 0.063 261.6) |
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 #334668 | 9.47:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #334668 | 2.21:1 | Fails | Lc 12.1 | Not readable |
| #334668 text on white | 9.47:1 | AAA | Lc 91.8 | Preferred for body text |
| #334668 text on black | 2.21:1 | Fails | Lc -10.6 | 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 900.
-
Step 50
50
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D0DAEB
oklch(88.6% 0.026 261.1)
-
Step 300
300
#B0C1E0
oklch(80.8% 0.048 262.5)
-
Step 400
400
#87A1D0
oklch(70.7% 0.075 262.1)
-
Step 500
500
#6989C4
oklch(63% 0.097 262.1)
-
Step 600
600
#5073B1
oklch(55.7% 0.105 261.2)
-
Step 700
700
#416098
oklch(49.2% 0.097 261.5)
-
Step 800
800
#364E7B
oklch(42.6% 0.081 262.2)
-
Step 900
900 (this color)
#334668
oklch(39.4% 0.063 261.6)
-
Step 950
950
#1B263A
oklch(26.9% 0.041 261.9)
#334668 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) | #394869 | 0.011 |
| Deuteranopia (no green cones) | #334467 | 0.006 |
| Tritanopia (no blue cones) | #1D4D52 | 0.056 |
| Achromatopsia (no color) | #464646 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334668
#334668
oklch(39.4% 0.063 261.6)
- #57421A
#57421A
oklch(39.3% 0.063 81.2)
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 #334668, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.027
- Charcoal #264653 ΔE 0.042
- Twilight Blue #0A437A ΔE 0.049
- Light Navy #155084 ΔE 0.053
- Deep Sea Blue #015482 ΔE 0.058
- Dark Slate Gray #2F4F4F ΔE 0.059
- Dark Blue Grey #1F3B4D ΔE 0.062
- Charcoal Grey #3C4142 ΔE 0.063
Use #334668 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.