#2B4E7D
Closest named color: Light Navy (#155084). oklch(42.1% 0.089 256.3), rgb(43, 78, 125).
Aa
White text reads best on this color (8.43:1).
About this color
#2B4E7D is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.089 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.019 away. White text reads best on it, at 8.43:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.48:1 |
| White text | 8.43:1 |
Values
| HEX | #2B4E7D |
| RGB | rgb(43, 78, 125) |
| HSL | hsl(214, 49%, 33%) |
| OKLCH | oklch(42.1% 0.089 256.3) |
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 #2B4E7D | 8.43:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #2B4E7D | 2.48:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #2B4E7D text on white | 8.43:1 | AAA | Lc 88.9 | Fine for body text |
| #2B4E7D text on black | 2.48:1 | Fails | Lc -13.3 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CDDAEC
oklch(88.4% 0.029 256.5)
-
Step 300
300
#ABC3E2
oklch(80.9% 0.051 254.9)
-
Step 400
400
#7FA3D4
oklch(70.7% 0.082 256.2)
-
Step 500
500
#5E8BC9
oklch(63.1% 0.106 256.6)
-
Step 600
600
#4474B6
oklch(55.6% 0.116 256.7)
-
Step 700
700
#35619C
oklch(49% 0.107 256.3)
-
Step 800
800 (this color)
#2B4E7D
oklch(42.1% 0.089 256.3)
-
Step 900
900
#284266
oklch(37.6% 0.07 256.8)
-
Step 950
950
#18273C
oklch(27% 0.044 256.9)
#2B4E7D 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) | #3A517F | 0.021 |
| Deuteranopia (no green cones) | #2E4A7C | 0.012 |
| Tritanopia (no blue cones) | #00595F | 0.074 |
| Achromatopsia (no color) | #4D4D4D | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4E7D
#2B4E7D
oklch(42.1% 0.089 256.3)
- #684600
#684600
oklch(42.2% 0.088 77.2)
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 #2B4E7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.019
- Deep Sea Blue #015482 ΔE 0.027
- Dusk Blue #26538D ΔE 0.028
- Light Navy Blue #2E5A88 ΔE 0.038
- Cobalt #1E488F ΔE 0.039
- Twilight Blue #0A437A ΔE 0.045
- YInMn Blue #415A77 ΔE 0.050
- Dusk #4E5481 ΔE 0.051
Use #2B4E7D 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.