#34539F
Closest named color: Dusk Blue (#26538D). oklch(46% 0.129 265.1), rgb(52, 83, 159).
Aa
White text reads best on this color (7.28:1).
About this color
#34539F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.129 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.034 away. White text reads best on it, at 7.28:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.88:1 |
| White text | 7.28:1 |
Values
| HEX | #34539F |
| RGB | rgb(52, 83, 159) |
| HSL | hsl(223, 51%, 41%) |
| OKLCH | oklch(46% 0.129 265.1) |
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 #34539F | 7.28:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #34539F | 2.88:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #34539F text on white | 7.28:1 | AAA | Lc 85.0 | Fine for body text |
| #34539F text on black | 2.88:1 | Fails | Lc -17.0 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CED9F1
oklch(88.4% 0.035 266)
-
Step 300
300
#ADC1EA
oklch(81% 0.062 264.6)
-
Step 400
400
#829FDF
oklch(70.6% 0.1 265.2)
-
Step 500
500
#6386D6
oklch(63% 0.127 265.1)
-
Step 600
600
#4B6FC4
oklch(55.7% 0.138 265)
-
Step 700
700 (this color)
#34539F
oklch(46% 0.129 265.1)
-
Step 800
800
#324C89
oklch(42.8% 0.106 264.9)
-
Step 900
900
#2C3F6D
oklch(37.6% 0.083 265.7)
-
Step 950
950
#1A2540
oklch(26.9% 0.053 266.2)
#34539F 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) | #2C5CA2 | 0.025 |
| Deuteranopia (no green cones) | #16529D | 0.026 |
| Tritanopia (no blue cones) | #006571 | 0.107 |
| Achromatopsia (no color) | #575757 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #34539F
#34539F
oklch(46% 0.129 265.1)
- #705300
#705300
oklch(46% 0.094 85.1)
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 #34539F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.034
- Denim Blue #3B5B92 ΔE 0.035
- Twilight #4E518B ΔE 0.045
- Light Navy Blue #2E5A88 ΔE 0.046
- Cobalt #1E488F ΔE 0.047
- Dusky Blue #475F94 ΔE 0.049
- Blueberry #464196 ΔE 0.050
- Light Navy #155084 ΔE 0.054
Use #34539F 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.