#3443B2
Closest named color: Blue Blue (#2242C7). oklch(44.3% 0.175 271.3), rgb(52, 67, 178).
Aa
White text reads best on this color (8.10:1).
About this color
#3443B2 is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.175 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.038 away. White text reads best on it, at 8.10:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.175) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.59:1 |
| White text | 8.10:1 |
Values
| HEX | #3443B2 |
| RGB | rgb(52, 67, 178) |
| HSL | hsl(233, 55%, 45%) |
| OKLCH | oklch(44.3% 0.175 271.3) |
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 #3443B2 | 8.10:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #3443B2 | 2.59:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #3443B2 text on white | 8.10:1 | AAA | Lc 87.5 | Fine for body text |
| #3443B2 text on black | 2.59:1 | Fails | Lc -14.6 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2E9FE
oklch(93.5% 0.029 271.1)
-
Step 200
200
#CBD8FF
oklch(88.5% 0.056 270.7)
-
Step 300
300
#AABEFF
oklch(81% 0.095 271)
-
Step 400
400
#7F99FF
oklch(70.8% 0.152 271.3)
-
Step 500
500
#617AFF
oklch(63% 0.198 271.6)
-
Step 600
600
#495CF5
oklch(55.6% 0.227 271.3)
-
Step 700
700
#3B4AD6
oklch(49.1% 0.212 271.2)
-
Step 800
800 (this color)
#3443B2
oklch(44.3% 0.175 271.3)
-
Step 900
900
#293789
oklch(37.8% 0.137 271)
-
Step 950
950
#182150
oklch(27% 0.087 271.3)
#3443B2 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) | #0056B6 | 0.051 |
| Deuteranopia (no green cones) | #004AB0 | 0.036 |
| Tritanopia (no blue cones) | #005F74 | 0.140 |
| Achromatopsia (no color) | #505050 | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3443B2
#3443B2
oklch(44.3% 0.175 271.3)
- #665100
#665100
oklch(44.4% 0.091 91.5)
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 #3443B2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.038
- Sapphire #2138AB ΔE 0.038
- Majorelle Blue #3F37C9 ΔE 0.044
- Blueberry #464196 ΔE 0.051
- Blue With A Hint Of Purple #533CC6 ΔE 0.055
- Cobalt #1E488F ΔE 0.063
- Blurple #5539CC ΔE 0.064
- Dark Slate Blue #483D8B ΔE 0.069
Use #3443B2 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.