#344AB1
Closest named color: Blue Blue (#2242C7). oklch(45.5% 0.165 269.5), rgb(52, 74, 177).
Aa
White text reads best on this color (7.60:1).
About this color
#344AB1 is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.165 and its hue 270°. 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 7.60:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.165) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.76:1 |
| White text | 7.60:1 |
Values
| HEX | #344AB1 |
| RGB | rgb(52, 74, 177) |
| HSL | hsl(229, 55%, 45%) |
| OKLCH | oklch(45.5% 0.165 269.5) |
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 #344AB1 | 7.60:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #344AB1 | 2.76:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #344AB1 text on white | 7.60:1 | AAA | Lc 86.0 | Fine for body text |
| #344AB1 text on black | 2.76:1 | Fails | Lc -16.1 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2EAFD
oklch(93.7% 0.027 267.5)
-
Step 200
200
#CBD8FE
oklch(88.5% 0.054 270.4)
-
Step 300
300
#A8BEFF
oklch(80.9% 0.096 269.8)
-
Step 400
400
#7B9AFF
oklch(70.8% 0.152 269.4)
-
Step 500
500
#5B7CFF
oklch(63.1% 0.198 269.4)
-
Step 600
600
#4560EE
oklch(55.5% 0.215 269.7)
-
Step 700
700
#374ED0
oklch(49.1% 0.201 269.5)
-
Step 800
800 (this color)
#344AB1
oklch(45.5% 0.165 269.5)
-
Step 900
900
#273985
oklch(37.7% 0.129 269.2)
-
Step 950
950
#17224E
oklch(27% 0.082 269.6)
#344AB1 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) | #005AB4 | 0.046 |
| Deuteranopia (no green cones) | #004EAF | 0.033 |
| Tritanopia (no blue cones) | #006376 | 0.133 |
| Achromatopsia (no color) | #545454 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #344AB1
#344AB1
oklch(45.5% 0.165 269.5)
- #6B5300
#6B5300
oklch(45.4% 0.093 89.3)
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 #344AB1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.044
- Blueberry #464196 ΔE 0.051
- Sapphire #2138AB ΔE 0.052
- Majorelle Blue #3F37C9 ΔE 0.054
- Blue With A Hint Of Purple #533CC6 ΔE 0.059
- Cobalt #1E488F ΔE 0.061
- Dusk Blue #26538D ΔE 0.067
- Blurple #5539CC ΔE 0.068
Use #344AB1 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.