#4B5DF4
Closest named color: Neon Blue (#4361EE). oklch(55.8% 0.224 271.7), rgb(75, 93, 244).
Aa
White text reads best on this color (5.03:1).
About this color
#4B5DF4 is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.224 and its hue 272°. 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 5.03:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.224) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.17:1 |
| White text | 5.03:1 |
Values
| HEX | #4B5DF4 |
| RGB | rgb(75, 93, 244) |
| HSL | hsl(234, 88%, 63%) |
| OKLCH | oklch(55.8% 0.224 271.7) |
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 #4B5DF4 | 5.03:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #4B5DF4 | 4.17:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #4B5DF4 text on white | 5.03:1 | AA | Lc 74.2 | Content text, not long reading |
| #4B5DF4 text on black | 4.17:1 | AA large text | Lc -27.5 | 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
#E3E9FE
oklch(93.6% 0.029 273.1)
-
Step 200
200
#CCD8FF
oklch(88.6% 0.055 271.8)
-
Step 300
300
#AABDFF
oklch(80.8% 0.096 271.7)
-
Step 400
400
#7F98FF
oklch(70.6% 0.153 271.7)
-
Step 500
500
#627AFF
oklch(63.1% 0.198 271.8)
-
Step 600
600 (this color)
#4B5DF4
oklch(55.8% 0.224 271.7)
-
Step 700
700
#3D4BD4
oklch(49.2% 0.208 271.7)
-
Step 800
800
#323EAB
oklch(42.6% 0.173 271.9)
-
Step 900
900
#2A3788
oklch(37.7% 0.135 271.4)
-
Step 950
950
#19214F
oklch(27% 0.085 272.1)
#4B5DF4 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) | #0077F9 | 0.065 |
| Deuteranopia (no green cones) | #0067F1 | 0.047 |
| Tritanopia (no blue cones) | #0084A0 | 0.180 |
| Achromatopsia (no color) | #6F6F6F | 0.225 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B5DF4
#4B5DF4
oklch(55.8% 0.224 271.7)
- #8C7100
#8C7100
oklch(55.9% 0.114 92.2)
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 #4B5DF4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.015
- Warm Blue #4B57DB ΔE 0.040
- Royal Blue #4169E1 ΔE 0.041
- Azul #1D5DEC ΔE 0.042
- Bright Blue #0165FC ΔE 0.046
- Cerulean Blue #056EEE ΔE 0.053
- Electric Blue #0652FF ΔE 0.060
- Dark Periwinkle #665FD1 ΔE 0.065
Use #4B5DF4 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.