#344F9E
Closest named color: Dusk Blue (#26538D). oklch(45.1% 0.132 266.8), rgb(52, 79, 158).
Aa
White text reads best on this color (7.61:1).
About this color
#344F9E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.132 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.035 away. White text reads best on it, at 7.61:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.75:1 |
| White text | 7.61:1 |
Values
| HEX | #344F9E |
| RGB | rgb(52, 79, 158) |
| HSL | hsl(225, 50%, 41%) |
| OKLCH | oklch(45.1% 0.132 266.8) |
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 #344F9E | 7.61:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #344F9E | 2.75:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #344F9E text on white | 7.61:1 | AAA | Lc 86.2 | Fine for body text |
| #344F9E text on black | 2.75:1 | Fails | Lc -15.9 | 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
#CCD9F6
oklch(88.5% 0.042 266.3)
-
Step 300
300
#AAC0F4
oklch(80.9% 0.078 266.8)
-
Step 400
400
#7E9DEE
oklch(70.6% 0.124 267.3)
-
Step 500
500
#5E83E8
oklch(63.1% 0.157 266.8)
-
Step 600
600
#466AD6
oklch(55.6% 0.171 266.9)
-
Step 700
700
#3857BA
oklch(49% 0.16 267.2)
-
Step 800
800 (this color)
#344F9E
oklch(45.1% 0.132 266.8)
-
Step 900
900
#293D78
oklch(37.7% 0.104 267.2)
-
Step 950
950
#182446
oklch(26.9% 0.065 267.3)
#344F9E 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) | #2459A1 | 0.028 |
| Deuteranopia (no green cones) | #064F9C | 0.033 |
| Tritanopia (no blue cones) | #00616F | 0.109 |
| Achromatopsia (no color) | #545454 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #344F9E
#344F9E
oklch(45.1% 0.132 266.8)
- #6C5100
#6C5100
oklch(45.1% 0.092 86.3)
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 #344F9E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.035
- Cobalt #1E488F ΔE 0.040
- Blueberry #464196 ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.044
- Twilight #4E518B ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.052
- Light Navy #155084 ΔE 0.053
- Dark Slate Blue #483D8B ΔE 0.057
Use #344F9E 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.