#345FC1
Closest named color: Mid Blue (#276AB3). oklch(51% 0.161 263.8), rgb(52, 95, 193).
Aa
White text reads best on this color (5.91:1).
About this color
#345FC1 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.161 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.040 away. White text reads best on it, at 5.91:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.161) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.55:1 |
| White text | 5.91:1 |
Values
| HEX | #345FC1 |
| RGB | rgb(52, 95, 193) |
| HSL | hsl(222, 58%, 48%) |
| OKLCH | oklch(51% 0.161 263.8) |
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 #345FC1 | 5.91:1 | AA | Lc -84.4 | Fine for body text |
| Black text on #345FC1 | 3.55:1 | AA large text | Lc 24.9 | Dividers and decoration only |
| #345FC1 text on white | 5.91:1 | AA | Lc 79.1 | Fine for body text |
| #345FC1 text on black | 3.55:1 | AA large text | Lc -22.7 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CBDAF7
oklch(88.6% 0.043 263.7)
-
Step 300
300
#A7C1F4
oklch(80.9% 0.078 263.6)
-
Step 400
400
#789FEE
oklch(70.7% 0.124 263.5)
-
Step 500
500
#5685E9
oklch(63.2% 0.159 263.6)
-
Step 600
600
#3C6CD7
oklch(55.6% 0.173 263.6)
-
Step 700
700 (this color)
#345FC1
oklch(51% 0.161 263.8)
-
Step 800
800
#274997
oklch(42.6% 0.134 263.9)
-
Step 900
900
#243E78
oklch(37.6% 0.104 263.9)
-
Step 950
950
#152546
oklch(27% 0.065 263.2)
#345FC1 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) | #236BC5 | 0.031 |
| Deuteranopia (no green cones) | #005EBF | 0.028 |
| Tritanopia (no blue cones) | #007687 | 0.127 |
| Achromatopsia (no color) | #646464 | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #345FC1
#345FC1
oklch(51% 0.161 263.8)
- #826000
#826000
oklch(51% 0.105 84.3)
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 #345FC1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.040
- Warm Blue #4B57DB ΔE 0.051
- French Blue #436BAD ΔE 0.052
- Royal Blue #4169E1 ΔE 0.057
- Iris #6258C4 ΔE 0.058
- Dark Periwinkle #665FD1 ΔE 0.068
- Azul #1D5DEC ΔE 0.068
- Windows Blue #3778BF ΔE 0.069
Use #345FC1 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.