#2445A2
Closest named color: Cobalt (#1E488F). oklch(42.5% 0.156 265.4), rgb(36, 69, 162).
Aa
White text reads best on this color (8.57:1).
About this color
#2445A2 is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.156 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.033 away. White text reads best on it, at 8.57:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.156) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.44:1 |
| White text | 8.57:1 |
Values
| HEX | #2445A2 |
| RGB | rgb(36, 69, 162) |
| HSL | hsl(224, 64%, 39%) |
| OKLCH | oklch(42.5% 0.156 265.4) |
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 #2445A2 | 8.57:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #2445A2 | 2.44:1 | Fails | Lc 15.0 | Dividers and decoration only |
| #2445A2 text on white | 8.57:1 | AAA | Lc 89.0 | Fine for body text |
| #2445A2 text on black | 2.44:1 | Fails | Lc -13.2 | 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
#F1F5FE
oklch(97% 0.013 266.7)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C9D9FC
oklch(88.5% 0.051 265.9)
-
Step 300
300
#A4C0FC
oklch(80.9% 0.091 265)
-
Step 400
400
#749DFB
oklch(70.7% 0.145 265.1)
-
Step 500
500
#5281F8
oklch(63.1% 0.185 265.3)
-
Step 600
600
#3866E7
oklch(55.5% 0.202 265.3)
-
Step 700
700
#2C54C9
oklch(49.1% 0.188 265.5)
-
Step 800
800 (this color)
#2445A2
oklch(42.5% 0.156 265.4)
-
Step 900
900
#223C81
oklch(37.8% 0.121 265.4)
-
Step 950
950
#14244B
oklch(27.1% 0.075 265)
#2445A2 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) | #0052A5 | 0.035 |
| Deuteranopia (no green cones) | #0046A0 | 0.021 |
| Tritanopia (no blue cones) | #005C6C | 0.123 |
| Achromatopsia (no color) | #4C4C4C | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2445A2
#2445A2
oklch(42.5% 0.156 265.4)
- #644A00
#644A00
oklch(42.5% 0.087 85.4)
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 #2445A2, closest first.
No curated palette has a color within ΔE 0.04 of #2445A2.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.033
- Sapphire #2138AB ΔE 0.035
- Blueberry #464196 ΔE 0.046
- Dusk Blue #26538D ΔE 0.055
- Blue Blue #2242C7 ΔE 0.060
- Dark Slate Blue #483D8B ΔE 0.060
- Light Navy #155084 ΔE 0.062
- Twilight Blue #0A437A ΔE 0.071
Use #2445A2 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.