#348EB4
Closest named color: Blue NCS (#118AB2). oklch(61% 0.101 229.9), rgb(52, 142, 180).
Aa
Black text reads best on this color (5.67:1).
About this color
#348EB4 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 61%, its chroma 0.101 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.021 away. Black text reads best on it, at 5.67:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.67:1 |
| White text | 3.70:1 |
Values
| HEX | #348EB4 |
| RGB | rgb(52, 142, 180) |
| HSL | hsl(198, 55%, 45%) |
| OKLCH | oklch(61% 0.101 229.9) |
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 #348EB4 | 3.70:1 | AA large text | Lc -69.8 | Content text, not long reading |
| Black text on #348EB4 | 5.67:1 | AA | Lc 39.8 | Non-text elements, placeholder text |
| #348EB4 text on white | 3.70:1 | AA large text | Lc 64.3 | Content text, not long reading |
| #348EB4 text on black | 5.67:1 | AA | Lc -37.4 | Non-text elements, placeholder text |
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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C8DDE8
oklch(88.5% 0.027 230.4)
-
Step 300
300
#A1C7DB
oklch(80.9% 0.049 231.1)
-
Step 400
400
#6AAAC9
oklch(70.7% 0.08 230.4)
-
Step 500
500 (this color)
#348EB4
oklch(61% 0.101 229.9)
-
Step 600
600
#037EA7
oklch(55.6% 0.11 230.1)
-
Step 700
700
#006A8D
oklch(49.1% 0.098 229.8)
-
Step 800
800
#015774
oklch(42.8% 0.084 229.5)
-
Step 900
900
#12485E
oklch(37.8% 0.066 229.9)
-
Step 950
950
#0D2A37
oklch(27% 0.042 230.5)
#348EB4 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) | #7B8CB6 | 0.071 |
| Deuteranopia (no green cones) | #697FB3 | 0.061 |
| Tritanopia (no blue cones) | #00999B | 0.060 |
| Achromatopsia (no color) | #858585 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #348EB4
#348EB4
oklch(61% 0.101 229.9)
- #B47049
#B47049
oklch(61% 0.102 49.8)
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 #348EB4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.021
- Cool Blue #4984B8 ΔE 0.033
- Steel Blue #4682B4 ΔE 0.035
- Dusty Blue #5A86AD ΔE 0.035
- Off Blue #5684AE ΔE 0.036
- Teal Blue #01889F ΔE 0.042
- Faded Blue #658CBB ΔE 0.046
- Water Blue #0E87CC ΔE 0.049
Use #348EB4 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.