#224CAF
Closest named color: Blue Blue (#2242C7). oklch(45% 0.165 263.7), rgb(34, 76, 175).
Aa
White text reads best on this color (7.71:1).
About this color
#224CAF is a dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.165 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.044 away. White text reads best on it, at 7.71:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | vivid (0.165) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.72:1 |
| White text | 7.71:1 |
Values
| HEX | #224CAF |
| RGB | rgb(34, 76, 175) |
| HSL | hsl(222, 67%, 41%) |
| OKLCH | oklch(45% 0.165 263.7) |
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 #224CAF | 7.71:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #224CAF | 2.72:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #224CAF text on white | 7.71:1 | AAA | Lc 86.2 | Fine for body text |
| #224CAF text on black | 2.72:1 | Fails | Lc -15.8 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C7DAFE
oklch(88.6% 0.054 263.2)
-
Step 300
300
#A1C0FF
oklch(80.8% 0.096 264.1)
-
Step 400
400
#6F9DFF
oklch(70.7% 0.152 263.9)
-
Step 500
500
#4881FF
oklch(63.2% 0.197 263.5)
-
Step 600
600
#2D66EE
oklch(55.7% 0.214 263.7)
-
Step 700
700
#2053CF
oklch(49% 0.199 263.6)
-
Step 800
800 (this color)
#224CAF
oklch(45% 0.165 263.7)
-
Step 900
900
#1C3C85
oklch(37.8% 0.129 263.6)
-
Step 950
950
#11244E
oklch(27.1% 0.081 263.6)
#224CAF 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) | #005AB2 | 0.036 |
| Deuteranopia (no green cones) | #004DAD | 0.017 |
| Tritanopia (no blue cones) | #006576 | 0.129 |
| Achromatopsia (no color) | #535353 | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #224CAF
#224CAF
oklch(45% 0.165 263.7)
- #6D5000
#6D5000
oklch(45% 0.092 84.4)
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 #224CAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.044
- Sapphire #2138AB ΔE 0.048
- Cobalt #1E488F ΔE 0.053
- Blueberry #464196 ΔE 0.060
- Dusk Blue #26538D ΔE 0.061
- Majorelle Blue #3F37C9 ΔE 0.064
- Denim Blue #3B5B92 ΔE 0.072
- Light Navy #155084 ΔE 0.074
Use #224CAF 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.