#2C4B79
Closest named color: Light Navy (#155084). oklch(41.2% 0.086 258.1), rgb(44, 75, 121).
Aa
White text reads best on this color (8.78:1).
About this color
#2C4B79 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.086 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.025 away. White text reads best on it, at 8.78:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.38:1 |
| White text | 8.78:1 |
Values
| HEX | #2C4B79 |
| RGB | rgb(44, 75, 121) |
| HSL | hsl(216, 47%, 32%) |
| OKLCH | oklch(41.2% 0.086 258.1) |
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 #2C4B79 | 8.78:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #2C4B79 | 2.38:1 | Fails | Lc 14.1 | Not readable |
| #2C4B79 text on white | 8.78:1 | AAA | Lc 89.9 | Fine for body text |
| #2C4B79 text on black | 2.38:1 | Fails | Lc -12.4 | 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
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAEC
oklch(88.5% 0.028 258.4)
-
Step 300
300
#ADC2E2
oklch(80.9% 0.051 258.7)
-
Step 400
400
#82A2D3
oklch(70.7% 0.081 258.7)
-
Step 500
500
#628BC7
oklch(63.2% 0.102 257.8)
-
Step 600
600
#4874B4
oklch(55.7% 0.111 257.7)
-
Step 700
700
#3A619B
oklch(49.2% 0.104 258.1)
-
Step 800
800 (this color)
#2C4B79
oklch(41.2% 0.086 258.1)
-
Step 900
900
#2B4265
oklch(37.7% 0.067 258.5)
-
Step 950
950
#19273B
oklch(27% 0.042 257.3)
#2C4B79 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) | #374E7B | 0.017 |
| Deuteranopia (no green cones) | #2D4778 | 0.012 |
| Tritanopia (no blue cones) | #00555C | 0.072 |
| Achromatopsia (no color) | #4B4B4B | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C4B79
#2C4B79
oklch(41.2% 0.086 258.1)
- #644400
#644400
oklch(41.2% 0.086 78.2)
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 #2C4B79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.025
- Deep Sea Blue #015482 ΔE 0.034
- Dusk Blue #26538D ΔE 0.037
- Twilight Blue #0A437A ΔE 0.040
- Cobalt #1E488F ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.051
- YInMn Blue #415A77 ΔE 0.056
Use #2C4B79 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.