#344D9B
Closest named color: Dusk Blue (#26538D). oklch(44.4% 0.131 267.5), rgb(52, 77, 155).
Aa
White text reads best on this color (7.83:1).
About this color
#344D9B is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.131 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.033 away. White text reads best on it, at 7.83:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.68:1 |
| White text | 7.83:1 |
Values
| HEX | #344D9B |
| RGB | rgb(52, 77, 155) |
| HSL | hsl(225, 50%, 41%) |
| OKLCH | oklch(44.4% 0.131 267.5) |
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 #344D9B | 7.83:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #344D9B | 2.68:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #344D9B text on white | 7.83:1 | AAA | Lc 86.9 | Fine for body text |
| #344D9B text on black | 2.68:1 | Fails | Lc -15.2 | 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 800.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CDD9F6
oklch(88.5% 0.042 267.7)
-
Step 300
300
#ABC0F3
oklch(81% 0.076 267.3)
-
Step 400
400
#7F9DED
oklch(70.7% 0.122 267.6)
-
Step 500
500
#6083E7
oklch(63.2% 0.155 267.4)
-
Step 600
600
#486AD5
oklch(55.6% 0.169 267.4)
-
Step 700
700
#3A57B9
oklch(49.1% 0.158 267.8)
-
Step 800
800 (this color)
#344D9B
oklch(44.4% 0.131 267.5)
-
Step 900
900
#2A3D77
oklch(37.7% 0.102 267.7)
-
Step 950
950
#192446
oklch(27% 0.065 268.3)
#344D9B 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) | #22579E | 0.029 |
| Deuteranopia (no green cones) | #064D99 | 0.034 |
| Tritanopia (no blue cones) | #005F6C | 0.109 |
| Achromatopsia (no color) | #525252 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #344D9B
#344D9B
oklch(44.4% 0.131 267.5)
- #695000
#695000
oklch(44.5% 0.091 87.8)
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 #344D9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.033
- Cobalt #1E488F ΔE 0.034
- Blueberry #464196 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.046
- Twilight #4E518B ΔE 0.047
- Light Navy #155084 ΔE 0.049
- Dark Slate Blue #483D8B ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.053
Use #344D9B 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.