#349CE4
Closest named color: Chefchaouen Blue (#4895EF). oklch(66.7% 0.142 243.7), rgb(52, 156, 228).
Aa
Black text reads best on this color (7.02:1).
About this color
#349CE4 is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.142 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.030 away. Black text reads best on it, at 7.02:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.02:1 |
| White text | 2.99:1 |
Values
| HEX | #349CE4 |
| RGB | rgb(52, 156, 228) |
| HSL | hsl(205, 77%, 55%) |
| OKLCH | oklch(66.7% 0.142 243.7) |
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 #349CE4 | 2.99:1 | Fails | Lc -61.5 | Content text, not long reading |
| Black text on #349CE4 | 7.02:1 | AAA | Lc 47.9 | Large or bold text, headings |
| #349CE4 text on white | 2.99:1 | Fails | Lc 56.1 | Large or bold text, headings |
| #349CE4 text on black | 7.02:1 | AAA | Lc -45.6 | Large or bold text, headings |
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 500.
-
Step 50
50
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF7
oklch(93.7% 0.02 243.4)
-
Step 200
200
#C4DDF1
oklch(88.5% 0.038 242.2)
-
Step 300
300
#9BC6EB
oklch(80.9% 0.07 244.8)
-
Step 400
400
#5FA8E0
oklch(70.7% 0.11 243.4)
-
Step 500
500 (this color)
#349CE4
oklch(66.7% 0.142 243.7)
-
Step 600
600
#0079BC
oklch(55.5% 0.136 243.9)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#005383
oklch(42.6% 0.105 243.8)
-
Step 900
900
#00456E
oklch(37.6% 0.092 243.7)
-
Step 950
950
#062941
oklch(27% 0.059 243.6)
#349CE4 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) | #7A9EE7 | 0.063 |
| Deuteranopia (no green cones) | #628EE3 | 0.048 |
| Tritanopia (no blue cones) | #00AEB6 | 0.099 |
| Achromatopsia (no color) | #959595 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #349CE4
#349CE4
oklch(66.7% 0.142 243.7)
- #D07E1F
#D07E1F
oklch(66.7% 0.142 63.2)
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 #349CE4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.030
- Dark Sky Blue #448EE4 ΔE 0.038
- Cornflower Blue #6495ED ΔE 0.044
- Dodger Blue #1E90FF ΔE 0.058
- Soft Blue #6488EA ΔE 0.064
- Water Blue #0E87CC ΔE 0.069
- Faded Blue #658CBB ΔE 0.071
- Cool Blue #4984B8 ΔE 0.082
Use #349CE4 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.