#344373
Closest named color: Twilight Blue (#0A437A). oklch(39.4% 0.084 269.2), rgb(52, 67, 115).
Aa
White text reads best on this color (9.56:1).
About this color
#344373 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.084 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.039 away. White text reads best on it, at 9.56:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.19:1 |
| White text | 9.56:1 |
Values
| HEX | #344373 |
| RGB | rgb(52, 67, 115) |
| HSL | hsl(226, 38%, 33%) |
| OKLCH | oklch(39.4% 0.084 269.2) |
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 #344373 | 9.56:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #344373 | 2.19:1 | Fails | Lc 11.9 | Not readable |
| #344373 text on white | 9.56:1 | AAA | Lc 92.0 | Preferred for body text |
| #344373 text on black | 2.19:1 | Fails | Lc -10.4 | 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
#E5EAF6
oklch(93.7% 0.017 267.8)
-
Step 200
200
#D0D9F1
oklch(88.6% 0.034 269.3)
-
Step 300
300
#B0C0EA
oklch(81% 0.062 268.6)
-
Step 400
400
#879EE0
oklch(70.7% 0.101 269)
-
Step 500
500
#6A84D7
oklch(63% 0.129 269.3)
-
Step 600
600
#536CC4
oklch(55.5% 0.139 269.5)
-
Step 700
700
#435AAA
oklch(49.1% 0.13 269.1)
-
Step 800
800
#374A89
oklch(42.7% 0.107 268.9)
-
Step 900
900 (this color)
#344373
oklch(39.4% 0.084 269.2)
-
Step 950
950
#1C2540
oklch(27.1% 0.052 268.8)
#344373 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) | #304875 | 0.015 |
| Deuteranopia (no green cones) | #294372 | 0.014 |
| Tritanopia (no blue cones) | #164D55 | 0.075 |
| Achromatopsia (no color) | #454545 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #344373
#344373
oklch(39.4% 0.084 269.2)
- #574300
#574300
oklch(39.3% 0.08 89.3)
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 #344373, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.039
- Light Navy #155084 ΔE 0.047
- Dark Grey Blue #29465B ΔE 0.048
- Cobalt #1E488F ΔE 0.050
- Dark Slate Blue #483D8B ΔE 0.055
- Dusk Blue #26538D ΔE 0.057
- Deep Sea Blue #015482 ΔE 0.057
- Charcoal #264653 ΔE 0.063
Use #344373 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.