#224BA8
Closest named color: Cobalt (#1E488F). oklch(44.2% 0.157 263.4), rgb(34, 75, 168).
Aa
White text reads best on this color (7.95:1).
About this color
#224BA8 is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.157 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.042 away. White text reads best on it, at 7.95:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.157) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.63:1 |
| White text | 7.95:1 |
Values
| HEX | #224BA8 |
| RGB | rgb(34, 75, 168) |
| HSL | hsl(222, 66%, 40%) |
| OKLCH | oklch(44.2% 0.157 263.4) |
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 #224BA8 | 7.95:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #224BA8 | 2.63:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #224BA8 text on white | 7.95:1 | AAA | Lc 87.1 | Fine for body text |
| #224BA8 text on black | 2.63:1 | Fails | Lc -15.0 | 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
#C8DAFC
oklch(88.6% 0.051 263.2)
-
Step 300
300
#A2C1FD
oklch(81% 0.092 263.3)
-
Step 400
400
#709EFC
oklch(70.8% 0.147 263.4)
-
Step 500
500
#4B82F9
oklch(63.1% 0.187 263.4)
-
Step 600
600
#3068E8
oklch(55.7% 0.203 263.4)
-
Step 700
700
#2355CA
oklch(49.1% 0.19 263.5)
-
Step 800
800 (this color)
#224BA8
oklch(44.2% 0.157 263.4)
-
Step 900
900
#1D3C81
oklch(37.5% 0.122 263.4)
-
Step 950
950
#12244C
oklch(27% 0.078 263.8)
#224BA8 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) | #0057AB | 0.032 |
| Deuteranopia (no green cones) | #004BA6 | 0.018 |
| Tritanopia (no blue cones) | #006272 | 0.122 |
| Achromatopsia (no color) | #515151 | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #224BA8
#224BA8
oklch(44.2% 0.157 263.4)
- #6B4E00
#6B4E00
oklch(44.3% 0.091 83.8)
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 #224BA8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.042
- Sapphire #2138AB ΔE 0.046
- Dusk Blue #26538D ΔE 0.052
- Blueberry #464196 ΔE 0.053
- Blue Blue #2242C7 ΔE 0.054
- Light Navy #155084 ΔE 0.064
- Denim Blue #3B5B92 ΔE 0.068
- Dark Slate Blue #483D8B ΔE 0.069
Use #224BA8 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.