#2A5779
Closest named color: Light Navy Blue (#2E5A88). oklch(44.1% 0.075 243.5), rgb(42, 87, 121).
Aa
White text reads best on this color (7.67:1).
About this color
#2A5779 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.075 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.026 away. White text reads best on it, at 7.67:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.73:1 |
| White text | 7.67:1 |
Values
| HEX | #2A5779 |
| RGB | rgb(42, 87, 121) |
| HSL | hsl(206, 48%, 32%) |
| OKLCH | oklch(44.1% 0.075 243.5) |
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 #2A5779 | 7.67:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #2A5779 | 2.73:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #2A5779 text on white | 7.67:1 | AAA | Lc 86.5 | Fine for body text |
| #2A5779 text on black | 2.73:1 | Fails | Lc -15.6 | Dividers and decoration only |
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
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE8
oklch(88.4% 0.024 244.2)
-
Step 300
300
#A9C4DB
oklch(80.8% 0.044 244)
-
Step 400
400
#7BA6C9
oklch(70.7% 0.069 243.5)
-
Step 500
500
#5790BC
oklch(63.2% 0.09 243.1)
-
Step 600
600
#3B79A8
oklch(55.6% 0.097 243.8)
-
Step 700
700
#2C6690
oklch(49.2% 0.09 243.1)
-
Step 800
800 (this color)
#2A5779
oklch(44.1% 0.075 243.5)
-
Step 900
900
#24455E
oklch(37.7% 0.058 243)
-
Step 950
950
#162837
oklch(26.9% 0.037 244.9)
#2A5779 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) | #48587B | 0.036 |
| Deuteranopia (no green cones) | #3D5078 | 0.027 |
| Tritanopia (no blue cones) | #005F63 | 0.056 |
| Achromatopsia (no color) | #535353 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A5779
#2A5779
oklch(44.1% 0.075 243.5)
- #704922
#704922
oklch(44.1% 0.076 63.5)
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 #2A5779, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.026
- YInMn Blue #415A77 ΔE 0.029
- Deep Sea Blue #015482 ΔE 0.030
- Light Navy #155084 ΔE 0.036
- Dusk Blue #26538D ΔE 0.038
- Petrol #005F6A ΔE 0.046
- Denim Blue #3B5B92 ΔE 0.047
- Dusk #4E5481 ΔE 0.047
Use #2A5779 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.