#4B5FDF
Closest named color: Warm Blue (#4B57DB). oklch(54.4% 0.195 271.6), rgb(75, 95, 223).
Aa
White text reads best on this color (5.24:1).
About this color
#4B5FDF is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.195 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.019 away. White text reads best on it, at 5.24:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.195) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 4.00:1 |
| White text | 5.24:1 |
Values
| HEX | #4B5FDF |
| RGB | rgb(75, 95, 223) |
| HSL | hsl(232, 70%, 58%) |
| OKLCH | oklch(54.4% 0.195 271.6) |
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 #4B5FDF | 5.24:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #4B5FDF | 4.00:1 | AA large text | Lc 28.5 | Dividers and decoration only |
| #4B5FDF text on white | 5.24:1 | AA | Lc 75.6 | Fine for body text |
| #4B5FDF text on black | 4.00:1 | AA large text | Lc -26.1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FB
oklch(93.5% 0.025 271.1)
-
Step 200
200
#CDD8FA
oklch(88.5% 0.048 271.2)
-
Step 300
300
#ACBEFA
oklch(80.9% 0.087 271.4)
-
Step 400
400
#829AF8
oklch(70.8% 0.14 271.6)
-
Step 500
500
#647DF4
oklch(63% 0.179 271.5)
-
Step 600
600 (this color)
#4B5FDF
oklch(54.4% 0.195 271.6)
-
Step 700
700
#4051C5
oklch(49.1% 0.18 271.7)
-
Step 800
800
#34439F
oklch(42.7% 0.149 271.6)
-
Step 900
900
#2D3A7F
oklch(37.8% 0.117 271.7)
-
Step 950
950
#1A224A
oklch(26.9% 0.075 272)
#4B5FDF 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) | #0073E3 | 0.058 |
| Deuteranopia (no green cones) | #0066DC | 0.048 |
| Tritanopia (no blue cones) | #007E96 | 0.159 |
| Achromatopsia (no color) | #6C6C6C | 0.195 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B5FDF
#4B5FDF
oklch(54.4% 0.195 271.6)
- #886D00
#886D00
oklch(54.5% 0.112 91.6)
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 #4B5FDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.019
- Neon Blue #4361EE ΔE 0.024
- Royal Blue #4169E1 ΔE 0.024
- Dark Periwinkle #665FD1 ΔE 0.042
- Azul #1D5DEC ΔE 0.045
- Slate Blue #6A5ACD ΔE 0.050
- Iris #6258C4 ΔE 0.052
- Light Indigo #6D5ACF ΔE 0.053
Use #4B5FDF 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.