#2248A1
Closest named color: Cobalt (#1E488F). oklch(43% 0.151 263.8), rgb(34, 72, 161).
Aa
White text reads best on this color (8.36:1).
About this color
#2248A1 is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.151 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.030 away. White text reads best on it, at 8.36:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.50:1 |
| White text | 8.36:1 |
Values
| HEX | #2248A1 |
| RGB | rgb(34, 72, 161) |
| HSL | hsl(222, 65%, 38%) |
| OKLCH | oklch(43% 0.151 263.8) |
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 #2248A1 | 8.36:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #2248A1 | 2.50:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #2248A1 text on white | 8.36:1 | AAA | Lc 88.4 | Fine for body text |
| #2248A1 text on black | 2.50:1 | Fails | Lc -13.8 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C9DAFB
oklch(88.6% 0.049 263.7)
-
Step 300
300
#A3C1FA
oklch(80.9% 0.087 263)
-
Step 400
400
#739EF8
oklch(70.7% 0.141 263.8)
-
Step 500
500
#4F82F5
oklch(63% 0.181 264)
-
Step 600
600
#3469E4
oklch(55.7% 0.196 263.7)
-
Step 700
700
#2756C6
oklch(49.1% 0.182 263.7)
-
Step 800
800 (this color)
#2248A1
oklch(43% 0.151 263.8)
-
Step 900
900
#203D7F
oklch(37.7% 0.117 263.8)
-
Step 950
950
#13244A
oklch(26.9% 0.074 264)
#2248A1 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) | #0054A4 | 0.032 |
| Deuteranopia (no green cones) | #00489F | 0.019 |
| Tritanopia (no blue cones) | #005E6D | 0.119 |
| Achromatopsia (no color) | #4E4E4E | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2248A1
#2248A1
oklch(43% 0.151 263.8)
- #674B00
#674B00
oklch(43.1% 0.089 83.9)
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 #2248A1, closest first.
No curated palette has a color within ΔE 0.04 of #2248A1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.030
- Sapphire #2138AB ΔE 0.042
- Blueberry #464196 ΔE 0.047
- Dusk Blue #26538D ΔE 0.048
- Light Navy #155084 ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.061
- Blue Blue #2242C7 ΔE 0.062
- Deep Sea Blue #015482 ΔE 0.067
Use #2248A1 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.