#334E80
Closest named color: Dusk Blue (#26538D). oklch(42.8% 0.09 261.8), rgb(51, 78, 128).
Aa
White text reads best on this color (8.26:1).
About this color
#334E80 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.090 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.025 away. White text reads best on it, at 8.26:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.54:1 |
| White text | 8.26:1 |
Values
| HEX | #334E80 |
| RGB | rgb(51, 78, 128) |
| HSL | hsl(219, 43%, 35%) |
| OKLCH | oklch(42.8% 0.09 261.8) |
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 #334E80 | 8.26:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #334E80 | 2.54:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #334E80 text on white | 8.26:1 | AAA | Lc 88.4 | Fine for body text |
| #334E80 text on black | 2.54:1 | Fails | Lc -13.8 | 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 800.
-
Step 50
50
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CFDAED
oklch(88.6% 0.029 261.5)
-
Step 300
300
#AEC1E3
oklch(80.8% 0.053 262.1)
-
Step 400
400
#84A1D5
oklch(70.7% 0.083 261.8)
-
Step 500
500
#6589CA
oklch(63.1% 0.107 261.7)
-
Step 600
600
#4C72B7
oklch(55.6% 0.116 261.5)
-
Step 700
700
#3D5F9E
oklch(49.1% 0.109 261.8)
-
Step 800
800 (this color)
#334E80
oklch(42.8% 0.09 261.8)
-
Step 900
900
#2D4167
oklch(37.7% 0.07 262.4)
-
Step 950
950
#1A263C
oklch(26.9% 0.045 261.9)
#334E80 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) | #395282 | 0.015 |
| Deuteranopia (no green cones) | #2F4B7F | 0.011 |
| Tritanopia (no blue cones) | #005961 | 0.078 |
| Achromatopsia (no color) | #4E4E4E | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334E80
#334E80
oklch(42.8% 0.09 261.8)
- #674900
#674900
oklch(42.7% 0.088 81.6)
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 #334E80, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.025
- Light Navy #155084 ΔE 0.026
- Deep Sea Blue #015482 ΔE 0.034
- Light Navy Blue #2E5A88 ΔE 0.035
- Cobalt #1E488F ΔE 0.040
- Dusk #4E5481 ΔE 0.043
- Twilight #4E518B ΔE 0.043
- Denim Blue #3B5B92 ΔE 0.046
Use #334E80 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.