#447AAD
Closest named color: Flat Blue (#3C73A8). oklch(56.5% 0.098 248.7), rgb(68, 122, 173).
Aa
Black text reads best on this color (4.63:1).
About this color
#447AAD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.098 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Flat Blue (#3C73A8), ΔE 0.023 away. Black text reads best on it, at 4.63:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Flat Blue (#3C73A8) |
| Black text | 4.63:1 |
| White text | 4.53:1 |
Values
| HEX | #447AAD |
| RGB | rgb(68, 122, 173) |
| HSL | hsl(209, 44%, 47%) |
| OKLCH | oklch(56.5% 0.098 248.7) |
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 #447AAD | 4.53:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #447AAD | 4.63:1 | AA | Lc 32.8 | Non-text elements, placeholder text |
| #447AAD text on white | 4.53:1 | AA | Lc 71.3 | Content text, not long reading |
| #447AAD text on black | 4.63:1 | AA | Lc -30.4 | Non-text elements, placeholder text |
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 600.
-
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
#CDDBE9
oklch(88.5% 0.025 248.1)
-
Step 300
300
#ABC4DC
oklch(80.9% 0.044 247.3)
-
Step 400
400
#7EA5CB
oklch(70.7% 0.07 248.2)
-
Step 500
500
#5C8EBE
oklch(63.1% 0.091 248.5)
-
Step 600
600 (this color)
#447AAD
oklch(56.5% 0.098 248.7)
-
Step 700
700
#336492
oklch(49.1% 0.091 248.8)
-
Step 800
800
#2B5276
oklch(42.7% 0.075 248.2)
-
Step 900
900
#274460
oklch(37.7% 0.06 248.9)
-
Step 950
950
#172838
oklch(27% 0.038 247.9)
#447AAD 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) | #647CAF | 0.037 |
| Deuteranopia (no green cones) | #5672AC | 0.027 |
| Tritanopia (no blue cones) | #00868C | 0.080 |
| Achromatopsia (no color) | #767676 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #447AAD
#447AAD
oklch(56.5% 0.098 248.7)
- #9B6A2E
#9B6A2E
oklch(56.4% 0.098 68.7)
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 #447AAD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Blue #3C73A8 ΔE 0.023
- Steel Blue #4682B4 ΔE 0.024
- Cerulean #457B9D ΔE 0.026
- Dull Blue #49759C ΔE 0.027
- Stormy Blue #507B9C ΔE 0.030
- Nice Blue #107AB0 ΔE 0.031
- Cool Blue #4984B8 ΔE 0.031
- Windows Blue #3778BF ΔE 0.032
Use #447AAD 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.