#344BB4
Closest named color: Blue Blue (#2242C7). oklch(46% 0.168 269.3), rgb(52, 75, 180).
Aa
White text reads best on this color (7.46:1).
About this color
#344BB4 is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.168 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.042 away. White text reads best on it, at 7.46:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.168) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.81:1 |
| White text | 7.46:1 |
Values
| HEX | #344BB4 |
| RGB | rgb(52, 75, 180) |
| HSL | hsl(229, 55%, 45%) |
| OKLCH | oklch(46% 0.168 269.3) |
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 #344BB4 | 7.46:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #344BB4 | 2.81:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #344BB4 text on white | 7.46:1 | AAA | Lc 85.5 | Fine for body text |
| #344BB4 text on black | 2.81:1 | Fails | Lc -16.6 | 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 700.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CDD9F8
oklch(88.6% 0.045 268.7)
-
Step 300
300
#ABBFF6
oklch(80.9% 0.081 269)
-
Step 400
400
#809CF2
oklch(70.8% 0.13 269.2)
-
Step 500
500
#6180ED
oklch(63% 0.167 269.2)
-
Step 600
600
#4A67DC
oklch(55.7% 0.181 269.2)
-
Step 700
700 (this color)
#344BB4
oklch(46% 0.168 269.3)
-
Step 800
800
#31469A
oklch(42.7% 0.139 269.2)
-
Step 900
900
#2B3C7B
oklch(37.8% 0.109 269.3)
-
Step 950
950
#192348
oklch(26.9% 0.07 269.8)
#344BB4 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) | #005BB8 | 0.045 |
| Deuteranopia (no green cones) | #004FB2 | 0.033 |
| Tritanopia (no blue cones) | #006578 | 0.135 |
| Achromatopsia (no color) | #555555 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #344BB4
#344BB4
oklch(46% 0.168 269.3)
- #6D5400
#6D5400
oklch(45.9% 0.094 88.6)
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 #344BB4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.042
- Majorelle Blue #3F37C9 ΔE 0.052
- Sapphire #2138AB ΔE 0.055
- Blueberry #464196 ΔE 0.056
- Blue With A Hint Of Purple #533CC6 ΔE 0.057
- Cobalt #1E488F ΔE 0.066
- Blurple #5539CC ΔE 0.066
- Dusk Blue #26538D ΔE 0.070
Use #344BB4 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.