#2C4DA5
Closest named color: Cobalt (#1E488F). oklch(44.8% 0.147 265.3), rgb(44, 77, 165).
Aa
White text reads best on this color (7.74:1).
About this color
#2C4DA5 is a dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.147 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.041 away. White text reads best on it, at 7.74:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.71:1 |
| White text | 7.74:1 |
Values
| HEX | #2C4DA5 |
| RGB | rgb(44, 77, 165) |
| HSL | hsl(224, 58%, 41%) |
| OKLCH | oklch(44.8% 0.147 265.3) |
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 #2C4DA5 | 7.74:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #2C4DA5 | 2.71:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #2C4DA5 text on white | 7.74:1 | AAA | Lc 86.5 | Fine for body text |
| #2C4DA5 text on black | 2.71:1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#CAD9FA
oklch(88.5% 0.048 266)
-
Step 300
300
#A6C0F9
oklch(80.9% 0.086 265.5)
-
Step 400
400
#779DF6
oklch(70.6% 0.138 265.5)
-
Step 500
500
#5582F3
oklch(63.2% 0.176 265.3)
-
Step 600
600
#3C68E1
oklch(55.6% 0.191 265.4)
-
Step 700
700
#2E56C4
oklch(49.2% 0.178 265.2)
-
Step 800
800 (this color)
#2C4DA5
oklch(44.8% 0.147 265.3)
-
Step 900
900
#233D7E
oklch(37.8% 0.115 265)
-
Step 950
950
#15244A
oklch(27% 0.073 265.6)
#2C4DA5 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) | #0F58A8 | 0.031 |
| Deuteranopia (no green cones) | #004DA3 | 0.026 |
| Tritanopia (no blue cones) | #006271 | 0.118 |
| Achromatopsia (no color) | #535353 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C4DA5
#2C4DA5
oklch(44.8% 0.147 265.3)
- #6C5000
#6C5000
oklch(44.9% 0.092 85.2)
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 #2C4DA5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.041
- Dusk Blue #26538D ΔE 0.045
- Blueberry #464196 ΔE 0.046
- Sapphire #2138AB ΔE 0.055
- Denim Blue #3B5B92 ΔE 0.057
- Light Navy #155084 ΔE 0.060
- Blue Blue #2242C7 ΔE 0.061
- Twilight #4E518B ΔE 0.063
Use #2C4DA5 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.