#4B5FA1
Closest named color: Dusky Blue (#475F94). oklch(50.1% 0.108 269.5), rgb(75, 95, 161).
Aa
White text reads best on this color (6.08:1).
About this color
#4B5FA1 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.108 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.022 away. White text reads best on it, at 6.08:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.45:1 |
| White text | 6.08:1 |
Values
| HEX | #4B5FA1 |
| RGB | rgb(75, 95, 161) |
| HSL | hsl(226, 36%, 46%) |
| OKLCH | oklch(50.1% 0.108 269.5) |
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 #4B5FA1 | 6.08:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #4B5FA1 | 3.45:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #4B5FA1 text on white | 6.08:1 | AA | Lc 80.3 | Fine for body text |
| #4B5FA1 text on black | 3.45:1 | AA large text | Lc -21.6 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D1D9ED
oklch(88.5% 0.029 268.3)
-
Step 300
300
#B3C0E3
oklch(80.9% 0.052 269.2)
-
Step 400
400
#8C9FD6
oklch(70.8% 0.084 269.5)
-
Step 500
500
#7086CA
oklch(63.1% 0.106 269.6)
-
Step 600
600
#586EB7
oklch(55.5% 0.117 269.7)
-
Step 700
700 (this color)
#4B5FA1
oklch(50.1% 0.108 269.5)
-
Step 800
800
#3B4B80
oklch(42.6% 0.09 269.6)
-
Step 900
900
#333F67
oklch(37.7% 0.07 270.1)
-
Step 950
950
#1E253C
oklch(27% 0.044 270.3)
#4B5FA1 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) | #4466A4 | 0.020 |
| Deuteranopia (no green cones) | #3B5FA0 | 0.019 |
| Tritanopia (no blue cones) | #226D78 | 0.096 |
| Achromatopsia (no color) | #626262 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B5FA1
#4B5FA1
oklch(50.1% 0.108 269.5)
- #7B6000
#7B6000
oklch(50.2% 0.103 89.4)
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 #4B5FA1, closest first.
No curated palette has a color within ΔE 0.04 of #4B5FA1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.022
- Denim Blue #3B5B92 ΔE 0.034
- French Blue #436BAD ΔE 0.035
- Denim #3B638C ΔE 0.043
- Mid Blue #276AB3 ΔE 0.046
- Twilight #4E518B ΔE 0.047
- Muted Blue #3B719F ΔE 0.053
- Dusk #4E5481 ΔE 0.055
Use #4B5FA1 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.