#345ED5
Closest named color: Warm Blue (#4B57DB). oklch(52.3% 0.189 265.5), rgb(52, 94, 213).
Aa
White text reads best on this color (5.66:1).
About this color
#345ED5 is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.189 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.029 away. White text reads best on it, at 5.66:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.189) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.70:1 |
| White text | 5.66:1 |
Values
| HEX | #345ED5 |
| RGB | rgb(52, 94, 213) |
| HSL | hsl(224, 66%, 52%) |
| OKLCH | oklch(52.3% 0.189 265.5) |
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 #345ED5 | 5.66:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #345ED5 | 3.70:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #345ED5 text on white | 5.66:1 | AA | Lc 77.8 | Fine for body text |
| #345ED5 text on black | 3.70:1 | AA large text | Lc -24.0 | 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
#F1F5FE
oklch(97% 0.013 266.7)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C9D9FC
oklch(88.5% 0.051 265.9)
-
Step 300
300
#A4C0FD
oklch(80.9% 0.092 265.3)
-
Step 400
400
#749DFC
oklch(70.8% 0.147 265.2)
-
Step 500
500
#5280F9
oklch(63% 0.188 265.6)
-
Step 600
600
#3866E8
oklch(55.6% 0.203 265.4)
-
Step 700
700 (this color)
#345ED5
oklch(52.3% 0.189 265.5)
-
Step 800
800
#2545A3
oklch(42.6% 0.157 265.7)
-
Step 900
900
#223C81
oklch(37.8% 0.121 265.4)
-
Step 950
950
#14244C
oklch(27.1% 0.077 265.2)
#345ED5 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) | #006FD9 | 0.044 |
| Deuteranopia (no green cones) | #0060D3 | 0.026 |
| Tritanopia (no blue cones) | #007B90 | 0.149 |
| Achromatopsia (no color) | #676767 | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #345ED5
#345ED5
oklch(52.3% 0.189 265.5)
- #866400
#866400
oklch(52.4% 0.107 85.2)
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 #345ED5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.029
- Royal Blue #4169E1 ΔE 0.037
- Azul #1D5DEC ΔE 0.038
- Neon Blue #4361EE ΔE 0.043
- Cerulean Blue #056EEE ΔE 0.053
- Iris #6258C4 ΔE 0.061
- Dark Periwinkle #665FD1 ΔE 0.062
- Bright Blue #0165FC ΔE 0.063
Use #345ED5 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.