#2B4D74
Closest named color: Light Navy (#155084). oklch(41.4% 0.077 253), rgb(43, 77, 116).
Aa
White text reads best on this color (8.69:1).
About this color
#2B4D74 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.077 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.030 away. White text reads best on it, at 8.69:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.41:1 |
| White text | 8.69:1 |
Values
| HEX | #2B4D74 |
| RGB | rgb(43, 77, 116) |
| HSL | hsl(212, 46%, 31%) |
| OKLCH | oklch(41.4% 0.077 253) |
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 #2B4D74 | 8.69:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #2B4D74 | 2.41:1 | Fails | Lc 14.3 | Not readable |
| #2B4D74 text on white | 8.69:1 | AAA | Lc 89.6 | Fine for body text |
| #2B4D74 text on black | 2.41:1 | Fails | Lc -12.6 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CEDBEA
oklch(88.6% 0.025 251.9)
-
Step 300
300
#ADC3DE
oklch(80.9% 0.045 253.6)
-
Step 400
400
#81A4CD
oklch(70.8% 0.072 252.8)
-
Step 500
500
#608CC0
oklch(63% 0.093 253.3)
-
Step 600
600
#4676AC
oklch(55.6% 0.1 252.6)
-
Step 700
700
#386394
oklch(49.2% 0.093 252.9)
-
Step 800
800 (this color)
#2B4D74
oklch(41.4% 0.077 253)
-
Step 900
900
#2A4361
oklch(37.7% 0.06 253.7)
-
Step 950
950
#192739
oklch(26.9% 0.039 255.1)
#2B4D74 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) | #3D4F76 | 0.024 |
| Deuteranopia (no green cones) | #334873 | 0.016 |
| Tritanopia (no blue cones) | #00565B | 0.064 |
| Achromatopsia (no color) | #4B4B4B | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4D74
#2B4D74
oklch(41.4% 0.077 253)
- #644413
#644413
oklch(41.3% 0.077 73.6)
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 #2B4D74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.030
- Deep Sea Blue #015482 ΔE 0.033
- Dusk Blue #26538D ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.044
- Twilight Blue #0A437A ΔE 0.045
- Light Navy Blue #2E5A88 ΔE 0.047
- YInMn Blue #415A77 ΔE 0.051
- Cobalt #1E488F ΔE 0.051
Use #2B4D74 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.