#344E7F
Closest named color: Dusk Blue (#26538D). oklch(42.8% 0.088 262.1), rgb(52, 78, 127).
Aa
White text reads best on this color (8.26:1).
About this color
#344E7F is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.088 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.027 away. White text reads best on it, at 8.26:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.54:1 |
| White text | 8.26:1 |
Values
| HEX | #344E7F |
| RGB | rgb(52, 78, 127) |
| HSL | hsl(219, 42%, 35%) |
| OKLCH | oklch(42.8% 0.088 262.1) |
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 #344E7F | 8.26:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #344E7F | 2.54:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #344E7F text on white | 8.26:1 | AAA | Lc 88.4 | Fine for body text |
| #344E7F text on black | 2.54:1 | Fails | Lc -13.8 | 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
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CFDAED
oklch(88.6% 0.029 261.5)
-
Step 300
300
#AFC1E3
oklch(80.9% 0.052 263.1)
-
Step 400
400
#85A1D4
oklch(70.7% 0.081 262.2)
-
Step 500
500
#6689C9
oklch(63.1% 0.105 261.9)
-
Step 600
600
#4E72B6
oklch(55.7% 0.114 262.2)
-
Step 700
700
#3F5F9C
oklch(49.1% 0.105 262.3)
-
Step 800
800 (this color)
#344E7F
oklch(42.8% 0.088 262.1)
-
Step 900
900
#2D4166
oklch(37.7% 0.069 262)
-
Step 950
950
#1B263C
oklch(27% 0.044 263.4)
#344E7F 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) | #3A5281 | 0.015 |
| Deuteranopia (no green cones) | #304B7E | 0.011 |
| Tritanopia (no blue cones) | #005960 | 0.079 |
| Achromatopsia (no color) | #4E4E4E | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #344E7F
#344E7F
oklch(42.8% 0.088 262.1)
- #674901
#674901
oklch(42.7% 0.088 81.4)
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 #344E7F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.027
- Light Navy #155084 ΔE 0.027
- Deep Sea Blue #015482 ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.035
- Cobalt #1E488F ΔE 0.041
- Dusk #4E5481 ΔE 0.042
- Twilight #4E518B ΔE 0.043
- YInMn Blue #415A77 ΔE 0.047
Use #344E7F 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.