#334674
Closest named color: Twilight Blue (#0A437A). oklch(40.1% 0.082 265.9), rgb(51, 70, 116).
Aa
White text reads best on this color (9.25:1).
About this color
#334674 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.082 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.040 away. White text reads best on it, at 9.25:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.26:1 |
| White text | 9.25:1 |
Values
| HEX | #334674 |
| RGB | rgb(51, 70, 116) |
| HSL | hsl(222, 39%, 33%) |
| OKLCH | oklch(40.1% 0.082 265.9) |
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 #334674 | 9.25:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #334674 | 2.26:1 | Fails | Lc 12.7 | Not readable |
| #334674 text on white | 9.25:1 | AAA | Lc 91.2 | Preferred for body text |
| #334674 text on black | 2.26:1 | Fails | Lc -11.1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CFD9F0
oklch(88.5% 0.033 266.9)
-
Step 300
300
#AEC0E9
oklch(80.8% 0.061 266.4)
-
Step 400
400
#849FDE
oklch(70.7% 0.098 266.1)
-
Step 500
500
#6586D5
oklch(63% 0.125 265.8)
-
Step 600
600
#4D6EC2
oklch(55.5% 0.136 266)
-
Step 700
700
#3E5CA8
oklch(49.1% 0.127 265.7)
-
Step 800
800
#334B88
oklch(42.6% 0.105 265.9)
-
Step 900
900 (this color)
#334674
oklch(40.1% 0.082 265.9)
-
Step 950
950
#1A2540
oklch(26.9% 0.053 266.2)
#334674 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) | #344A76 | 0.012 |
| Deuteranopia (no green cones) | #2C4573 | 0.010 |
| Tritanopia (no blue cones) | #115057 | 0.073 |
| Achromatopsia (no color) | #474747 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334674
#334674
oklch(40.1% 0.082 265.9)
- #5C4401
#5C4401
oklch(40.2% 0.082 85.4)
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 #334674, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.040
- Light Navy #155084 ΔE 0.041
- Dark Grey Blue #29465B ΔE 0.046
- Cobalt #1E488F ΔE 0.048
- Deep Sea Blue #015482 ΔE 0.050
- Dusk Blue #26538D ΔE 0.051
- Dark Slate Blue #483D8B ΔE 0.057
- Charcoal #264653 ΔE 0.061
Use #334674 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.