#349FD9
Closest named color: Chefchaouen Blue (#4895EF). oklch(66.8% 0.128 237.3), rgb(52, 159, 217).
Aa
Black text reads best on this color (7.10:1).
About this color
#349FD9 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.128 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.049 away. Black text reads best on it, at 7.10:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.10:1 |
| White text | 2.95:1 |
Values
| HEX | #349FD9 |
| RGB | rgb(52, 159, 217) |
| HSL | hsl(201, 68%, 53%) |
| OKLCH | oklch(66.8% 0.128 237.3) |
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 #349FD9 | 2.95:1 | Fails | Lc -61.0 | Content text, not long reading |
| Black text on #349FD9 | 7.10:1 | AAA | Lc 48.4 | Large or bold text, headings |
| #349FD9 text on white | 2.95:1 | Fails | Lc 55.7 | Large or bold text, headings |
| #349FD9 text on black | 7.10:1 | AAA | Lc -46.1 | 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
#F0F6FA
oklch(97% 0.008 236.6)
-
Step 100
100
#DFECF5
oklch(93.6% 0.018 237.8)
-
Step 200
200
#C5DDEE
oklch(88.5% 0.035 238.7)
-
Step 300
300
#9BC7E4
oklch(80.8% 0.062 237.4)
-
Step 400
400
#5FAAD7
oklch(70.7% 0.1 236.8)
-
Step 500
500 (this color)
#349FD9
oklch(66.8% 0.128 237.3)
-
Step 600
600
#007CB1
oklch(55.6% 0.122 237.2)
-
Step 700
700
#006896
oklch(49.1% 0.108 237.6)
-
Step 800
800
#00557C
oklch(42.7% 0.094 237.9)
-
Step 900
900
#004768
oklch(37.7% 0.083 237.5)
-
Step 950
950
#062A3D
oklch(27.1% 0.053 236.9)
#349FD9 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) | #839FDC | 0.072 |
| Deuteranopia (no green cones) | #6D8FD8 | 0.060 |
| Tritanopia (no blue cones) | #00AEB3 | 0.083 |
| Achromatopsia (no color) | #969696 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #349FD9
#349FD9
oklch(66.8% 0.128 237.3)
- #CF7F3D
#CF7F3D
oklch(67% 0.128 57.4)
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 #349FD9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.049
- Dark Sky Blue #448EE4 ΔE 0.053
- Cornflower Blue #6495ED ΔE 0.058
- Faded Blue #658CBB ΔE 0.065
- Turquoise Blue #06B1C4 ΔE 0.068
- Water Blue #0E87CC ΔE 0.072
- Greyblue #77A1B5 ΔE 0.076
- Dodger Blue #1E90FF ΔE 0.078
Use #349FD9 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.