#224FA8
Closest named color: Cobalt (#1E488F). oklch(45% 0.152 262.1), rgb(34, 79, 168).
Aa
White text reads best on this color (7.63:1).
About this color
#224FA8 is a medium-dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.152 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.044 away. White text reads best on it, at 7.63:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.75:1 |
| White text | 7.63:1 |
Values
| HEX | #224FA8 |
| RGB | rgb(34, 79, 168) |
| HSL | hsl(220, 66%, 40%) |
| OKLCH | oklch(45% 0.152 262.1) |
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 #224FA8 | 7.63:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #224FA8 | 2.75:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #224FA8 text on white | 7.63:1 | AAA | Lc 86.0 | Fine for body text |
| #224FA8 text on black | 2.75:1 | Fails | Lc -16.0 | 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
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C8DAFB
oklch(88.5% 0.05 262.6)
-
Step 300
300
#A1C1FB
oklch(80.8% 0.09 262.1)
-
Step 400
400
#6F9FF9
oklch(70.8% 0.142 262.1)
-
Step 500
500
#4984F5
oklch(63.2% 0.18 261.9)
-
Step 600
600
#2C6AE4
oklch(55.6% 0.197 262)
-
Step 700
700
#1F57C6
oklch(49% 0.183 262)
-
Step 800
800 (this color)
#224FA8
oklch(45% 0.152 262.1)
-
Step 900
900
#1C3D7F
oklch(37.6% 0.119 262.3)
-
Step 950
950
#11254B
oklch(27.1% 0.075 261.8)
#224FA8 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) | #0E5AAB | 0.029 |
| Deuteranopia (no green cones) | #004EA6 | 0.018 |
| Tritanopia (no blue cones) | #006574 | 0.118 |
| Achromatopsia (no color) | #545454 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #224FA8
#224FA8
oklch(45% 0.152 262.1)
- #6F4F00
#6F4F00
oklch(45% 0.093 81.6)
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 #224FA8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.044
- Dusk Blue #26538D ΔE 0.047
- Blueberry #464196 ΔE 0.056
- Sapphire #2138AB ΔE 0.056
- Blue Blue #2242C7 ΔE 0.058
- Denim Blue #3B5B92 ΔE 0.059
- Light Navy #155084 ΔE 0.061
- Light Navy Blue #2E5A88 ΔE 0.066
Use #224FA8 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.