#2C5178
Closest named color: Light Navy (#155084). oklch(42.6% 0.078 251.2), rgb(44, 81, 120).
Aa
White text reads best on this color (8.21:1).
About this color
#2C5178 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.078 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.027 away. White text reads best on it, at 8.21:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.55:1 |
| White text | 8.21:1 |
Values
| HEX | #2C5178 |
| RGB | rgb(44, 81, 120) |
| HSL | hsl(211, 46%, 32%) |
| OKLCH | oklch(42.6% 0.078 251.2) |
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 #2C5178 | 8.21:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #2C5178 | 2.55:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #2C5178 text on white | 8.21:1 | AAA | Lc 88.2 | Fine for body text |
| #2C5178 text on black | 2.55:1 | Fails | Lc -13.9 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CDDBEA
oklch(88.5% 0.026 250)
-
Step 300
300
#ACC3DE
oklch(80.9% 0.046 252.5)
-
Step 400
400
#7FA4CD
oklch(70.7% 0.073 251.4)
-
Step 500
500
#5E8DC0
oklch(63.1% 0.093 251.4)
-
Step 600
600
#4376AD
oklch(55.5% 0.102 251.7)
-
Step 700
700
#356394
oklch(49% 0.094 251.6)
-
Step 800
800 (this color)
#2C5178
oklch(42.6% 0.078 251.2)
-
Step 900
900
#284361
oklch(37.6% 0.061 252.1)
-
Step 950
950
#182839
oklch(27.1% 0.038 250.8)
#2C5178 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) | #40537A | 0.026 |
| Deuteranopia (no green cones) | #364B77 | 0.020 |
| Tritanopia (no blue cones) | #005A5F | 0.064 |
| Achromatopsia (no color) | #4F4F4F | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C5178
#2C5178
oklch(42.6% 0.078 251.2)
- #694717
#694717
oklch(42.7% 0.078 71.8)
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 #2C5178, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.027
- Deep Sea Blue #015482 ΔE 0.028
- Dusk Blue #26538D ΔE 0.034
- Light Navy Blue #2E5A88 ΔE 0.034
- YInMn Blue #415A77 ΔE 0.040
- Dusk #4E5481 ΔE 0.049
- Cobalt #1E488F ΔE 0.053
- Denim Blue #3B5B92 ΔE 0.053
Use #2C5178 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.