#355FED
Closest named color: Neon Blue (#4361EE). oklch(54.5% 0.219 266.3), rgb(53, 95, 237).
Aa
White text reads best on this color (5.23:1).
About this color
#355FED is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.219 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.015 away. White text reads best on it, at 5.23:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.219) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.01:1 |
| White text | 5.23:1 |
Values
| HEX | #355FED |
| RGB | rgb(53, 95, 237) |
| HSL | hsl(226, 84%, 57%) |
| OKLCH | oklch(54.5% 0.219 266.3) |
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 #355FED | 5.23:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #355FED | 4.01:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #355FED text on white | 5.23:1 | AA | Lc 75.3 | Fine for body text |
| #355FED text on black | 4.01:1 | AA large text | Lc -26.4 | 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 600.
-
Step 50
50
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E1EAFE
oklch(93.6% 0.029 266.4)
-
Step 200
200
#C8D9FE
oklch(88.5% 0.054 265.8)
-
Step 300
300
#A4BFFF
oklch(80.8% 0.096 266.6)
-
Step 400
400
#749CFF
oklch(70.8% 0.152 266)
-
Step 500
500
#527EFF
oklch(63% 0.198 266.5)
-
Step 600
600 (this color)
#355FED
oklch(54.5% 0.219 266.3)
-
Step 700
700
#2B50D2
oklch(49.1% 0.204 266.3)
-
Step 800
800
#2443A9
oklch(42.7% 0.168 266.3)
-
Step 900
900
#213A86
oklch(37.7% 0.131 266.3)
-
Step 950
950
#13234E
oklch(27% 0.082 265.8)
#355FED 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) | #0075F2 | 0.052 |
| Deuteranopia (no green cones) | #0064EA | 0.026 |
| Tritanopia (no blue cones) | #00839D | 0.170 |
| Achromatopsia (no color) | #6C6C6C | 0.219 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #355FED
#355FED
oklch(54.5% 0.219 266.3)
- #8D6B00
#8D6B00
oklch(54.7% 0.112 86.6)
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 #355FED, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.015
- Azul #1D5DEC ΔE 0.019
- Bright Blue #0165FC ΔE 0.032
- Royal Blue #4169E1 ΔE 0.034
- Cerulean Blue #056EEE ΔE 0.037
- Warm Blue #4B57DB ΔE 0.037
- Electric Blue #0652FF ΔE 0.048
- Clear Blue #247AFD ΔE 0.066
Use #355FED 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.