#2D4F78
Closest named color: Light Navy (#155084). oklch(42.2% 0.08 254.1), rgb(45, 79, 120).
Aa
White text reads best on this color (8.39:1).
About this color
#2D4F78 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.080 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.026 away. White text reads best on it, at 8.39:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.50:1 |
| White text | 8.39:1 |
Values
| HEX | #2D4F78 |
| RGB | rgb(45, 79, 120) |
| HSL | hsl(213, 45%, 32%) |
| OKLCH | oklch(42.2% 0.08 254.1) |
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 #2D4F78 | 8.39:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #2D4F78 | 2.50:1 | Fails | Lc 15.2 | Dividers and decoration only |
| #2D4F78 text on white | 8.39:1 | AAA | Lc 88.8 | Fine for body text |
| #2D4F78 text on black | 2.50:1 | Fails | Lc -13.4 | 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 800.
-
Step 50
50
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CEDAEA
oklch(88.4% 0.026 255.6)
-
Step 300
300
#ADC3DF
oklch(81% 0.046 254.5)
-
Step 400
400
#81A3CF
oklch(70.7% 0.075 255.1)
-
Step 500
500
#608CC2
oklch(63.1% 0.095 254.1)
-
Step 600
600
#4675AE
oklch(55.5% 0.103 254.2)
-
Step 700
700
#386296
oklch(49% 0.096 254.7)
-
Step 800
800 (this color)
#2D4F78
oklch(42.2% 0.08 254.1)
-
Step 900
900
#2A4362
oklch(37.8% 0.062 254.4)
-
Step 950
950
#192739
oklch(26.9% 0.039 255.1)
#2D4F78 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) | #3E517A | 0.023 |
| Deuteranopia (no green cones) | #344A77 | 0.016 |
| Tritanopia (no blue cones) | #00585E | 0.066 |
| Achromatopsia (no color) | #4D4D4D | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D4F78
#2D4F78
oklch(42.2% 0.08 254.1)
- #674612
#674612
oklch(42.1% 0.079 74)
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 #2D4F78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.026
- Deep Sea Blue #015482 ΔE 0.030
- Dusk Blue #26538D ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.038
- YInMn Blue #415A77 ΔE 0.045
- Cobalt #1E488F ΔE 0.049
- Dusk #4E5481 ΔE 0.050
- Twilight Blue #0A437A ΔE 0.050
Use #2D4F78 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.