#545AF3
Closest named color: Neon Blue (#4361EE). oklch(55.7% 0.224 274.7), rgb(84, 90, 243).
Aa
White text reads best on this color (5.08:1).
About this color
#545AF3 is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.224 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.024 away. White text reads best on it, at 5.08:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.224) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.13:1 |
| White text | 5.08:1 |
Values
| HEX | #545AF3 |
| RGB | rgb(84, 90, 243) |
| HSL | hsl(238, 87%, 64%) |
| OKLCH | oklch(55.7% 0.224 274.7) |
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 #545AF3 | 5.08:1 | AA | Lc -79.9 | Fine for body text |
| Black text on #545AF3 | 4.13:1 | AA large text | Lc 29.6 | Dividers and decoration only |
| #545AF3 text on white | 5.08:1 | AA | Lc 74.5 | Content text, not long reading |
| #545AF3 text on black | 4.13:1 | AA large text | Lc -27.2 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E4E9FE
oklch(93.7% 0.029 275.2)
-
Step 200
200
#CED7FF
oklch(88.5% 0.056 275.2)
-
Step 300
300
#AEBCFF
oklch(80.9% 0.096 274.9)
-
Step 400
400
#8596FF
oklch(70.6% 0.154 274.8)
-
Step 500
500
#6978FF
oklch(63.1% 0.199 274.4)
-
Step 600
600 (this color)
#545AF3
oklch(55.7% 0.224 274.7)
-
Step 700
700
#4548D3
oklch(49.1% 0.208 274.7)
-
Step 800
800
#383CAB
oklch(42.6% 0.174 274.7)
-
Step 900
900
#2F3587
oklch(37.6% 0.135 274.7)
-
Step 950
950
#1B204F
oklch(26.9% 0.086 274.6)
#545AF3 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) | #0075F8 | 0.072 |
| Deuteranopia (no green cones) | #0067F0 | 0.059 |
| Tritanopia (no blue cones) | #00819E | 0.183 |
| Achromatopsia (no color) | #6E6E6E | 0.225 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #545AF3
#545AF3
oklch(55.7% 0.224 274.7)
- #897200
#897200
oklch(55.8% 0.114 94.9)
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 #545AF3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.024
- Warm Blue #4B57DB ΔE 0.040
- Royal Blue #4169E1 ΔE 0.047
- Azul #1D5DEC ΔE 0.052
- Bright Blue #0165FC ΔE 0.058
- Dark Periwinkle #665FD1 ΔE 0.060
- Cerulean Blue #056EEE ΔE 0.064
- Light Indigo #6D5ACF ΔE 0.066
Use #545AF3 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.