#334F82
Closest named color: Dusk Blue (#26538D). oklch(43.1% 0.091 261.6), rgb(51, 79, 130).
Aa
White text reads best on this color (8.13:1).
About this color
#334F82 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.091 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.022 away. White text reads best on it, at 8.13:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.58:1 |
| White text | 8.13:1 |
Values
| HEX | #334F82 |
| RGB | rgb(51, 79, 130) |
| HSL | hsl(219, 44%, 35%) |
| OKLCH | oklch(43.1% 0.091 261.6) |
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 #334F82 | 8.13:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #334F82 | 2.58:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #334F82 text on white | 8.13:1 | AAA | Lc 88.0 | Fine for body text |
| #334F82 text on black | 2.58:1 | Fails | Lc -14.2 | 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
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CEDAED
oklch(88.5% 0.029 259.6)
-
Step 300
300
#AEC1E4
oklch(80.8% 0.054 262.6)
-
Step 400
400
#83A1D6
oklch(70.7% 0.085 261.5)
-
Step 500
500
#6489CC
oklch(63.1% 0.11 261.7)
-
Step 600
600
#4B72B8
oklch(55.6% 0.118 261.3)
-
Step 700
700
#3C5F9F
oklch(49.1% 0.111 261.5)
-
Step 800
800 (this color)
#334F82
oklch(43.1% 0.091 261.6)
-
Step 900
900
#2C4167
oklch(37.7% 0.071 261.6)
-
Step 950
950
#1A263C
oklch(26.9% 0.045 261.9)
#334F82 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) | #395384 | 0.015 |
| Deuteranopia (no green cones) | #2F4C81 | 0.011 |
| Tritanopia (no blue cones) | #005A62 | 0.079 |
| Achromatopsia (no color) | #4F4F4F | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334F82
#334F82
oklch(43.1% 0.091 261.6)
- #684A00
#684A00
oklch(43% 0.089 81.9)
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 #334F82, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.022
- Light Navy #155084 ΔE 0.025
- Light Navy Blue #2E5A88 ΔE 0.032
- Deep Sea Blue #015482 ΔE 0.034
- Cobalt #1E488F ΔE 0.039
- Twilight #4E518B ΔE 0.041
- Dusk #4E5481 ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.043
Use #334F82 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.