#2A4A80
Closest named color: Light Navy (#155084). oklch(41.3% 0.098 260.2), rgb(42, 74, 128).
Aa
White text reads best on this color (8.78:1).
About this color
#2A4A80 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.098 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.022 away. White text reads best on it, at 8.78:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.38:1 |
| White text | 8.78:1 |
Values
| HEX | #2A4A80 |
| RGB | rgb(42, 74, 128) |
| HSL | hsl(218, 51%, 33%) |
| OKLCH | oklch(41.3% 0.098 260.2) |
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 #2A4A80 | 8.78:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #2A4A80 | 2.38:1 | Fails | Lc 14.1 | Not readable |
| #2A4A80 text on white | 8.78:1 | AAA | Lc 89.9 | Fine for body text |
| #2A4A80 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CDDAEF
oklch(88.5% 0.032 260)
-
Step 300
300
#ABC2E6
oklch(80.9% 0.057 259.3)
-
Step 400
400
#7FA1DA
oklch(70.6% 0.092 260.5)
-
Step 500
500
#5F89D0
oklch(63.1% 0.117 260.4)
-
Step 600
600
#4572BD
oklch(55.6% 0.127 260.1)
-
Step 700
700
#375FA3
oklch(49.1% 0.118 260.3)
-
Step 800
800 (this color)
#2A4A80
oklch(41.3% 0.098 260.2)
-
Step 900
900
#29416A
oklch(37.7% 0.077 260.5)
-
Step 950
950
#18263E
oklch(26.9% 0.049 260.7)
#2A4A80 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) | #324F82 | 0.019 |
| Deuteranopia (no green cones) | #25477F | 0.011 |
| Tritanopia (no blue cones) | #00565E | 0.081 |
| Achromatopsia (no color) | #4B4B4B | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A4A80
#2A4A80
oklch(41.3% 0.098 260.2)
- #634500
#634500
oklch(41.3% 0.085 80.3)
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 #2A4A80, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.022
- Cobalt #1E488F ΔE 0.029
- Dusk Blue #26538D ΔE 0.031
- Deep Sea Blue #015482 ΔE 0.034
- Twilight Blue #0A437A ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.048
- Dark Slate Blue #483D8B ΔE 0.056
- Twilight #4E518B ΔE 0.057
Use #2A4A80 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.