#334369
Closest named color: Dark Grey Blue (#29465B). oklch(38.7% 0.068 265.9), rgb(51, 67, 105).
Aa
White text reads best on this color (9.77:1).
About this color
#334369 is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.068 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.032 away. White text reads best on it, at 9.77:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.14:1 |
| White text | 9.77:1 |
Values
| HEX | #334369 |
| RGB | rgb(51, 67, 105) |
| HSL | hsl(222, 35%, 31%) |
| OKLCH | oklch(38.7% 0.068 265.9) |
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 #334369 | 9.77:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #334369 | 2.14:1 | Fails | Lc 11.4 | Not readable |
| #334369 text on white | 9.77:1 | AAA | Lc 92.6 | Preferred for body text |
| #334369 text on black | 2.14:1 | Fails | Lc -9.8 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#D0D9ED
oklch(88.5% 0.029 266.4)
-
Step 300
300
#B1C1E3
oklch(81% 0.051 265.3)
-
Step 400
400
#89A0D4
oklch(70.8% 0.081 265.9)
-
Step 500
500
#6B87C9
oklch(63% 0.105 266)
-
Step 600
600
#5470B6
oklch(55.6% 0.114 266.3)
-
Step 700
700
#445E9D
oklch(49.2% 0.106 265.7)
-
Step 800
800
#384D7F
oklch(42.8% 0.087 265.6)
-
Step 900
900 (this color)
#334369
oklch(38.7% 0.068 265.9)
-
Step 950
950
#1C263C
oklch(27.1% 0.044 265)
#334369 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) | #35466B | 0.010 |
| Deuteranopia (no green cones) | #2F4268 | 0.007 |
| Tritanopia (no blue cones) | #1D4B51 | 0.061 |
| Achromatopsia (no color) | #444444 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334369
#334369
oklch(38.7% 0.068 265.9)
- #554112
#554112
oklch(38.7% 0.068 84.9)
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 #334369, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.032
- Twilight Blue #0A437A ΔE 0.045
- Charcoal #264653 ΔE 0.046
- Light Navy #155084 ΔE 0.056
- Dark Blue Grey #1F3B4D ΔE 0.060
- Prussian Blue #1D3557 ΔE 0.061
- Marine Blue #01386A ΔE 0.062
- Deep Sea Blue #015482 ΔE 0.063
Use #334369 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.