#4B5491
Closest named color: Twilight (#4E518B). oklch(46.7% 0.099 275.5), rgb(75, 84, 145).
Aa
White text reads best on this color (7.05:1).
About this color
#4B5491 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.099 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.012 away. White text reads best on it, at 7.05:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.97:1 |
| White text | 7.05:1 |
Values
| HEX | #4B5491 |
| RGB | rgb(75, 84, 145) |
| HSL | hsl(232, 32%, 43%) |
| OKLCH | oklch(46.7% 0.099 275.5) |
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 #4B5491 | 7.05:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #4B5491 | 2.97:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #4B5491 text on white | 7.05:1 | AAA | Lc 84.3 | Fine for body text |
| #4B5491 text on black | 2.97:1 | Fails | Lc -17.6 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D4D8EB
oklch(88.5% 0.026 276.4)
-
Step 300
300
#B7BFE0
oklch(80.9% 0.047 274.6)
-
Step 400
400
#939DD1
oklch(70.7% 0.077 275.8)
-
Step 500
500
#7984C5
oklch(63.1% 0.099 275.9)
-
Step 600
600
#626DB1
oklch(55.6% 0.106 275.4)
-
Step 700
700 (this color)
#4B5491
oklch(46.7% 0.099 275.5)
-
Step 800
800
#434A7C
oklch(42.7% 0.083 276.2)
-
Step 900
900
#383E63
oklch(37.6% 0.064 275.9)
-
Step 950
950
#21253A
oklch(27.1% 0.04 275.2)
#4B5491 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) | #3D5C93 | 0.026 |
| Deuteranopia (no green cones) | #375690 | 0.026 |
| Tritanopia (no blue cones) | #31616B | 0.089 |
| Achromatopsia (no color) | #595959 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B5491
#4B5491
oklch(46.7% 0.099 275.5)
- #6B5900
#6B5900
oklch(46.8% 0.096 95.3)
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 #4B5491, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.012
- Denim Blue #3B5B92 ΔE 0.026
- Dusk #4E5481 ΔE 0.027
- Dusky Blue #475F94 ΔE 0.031
- Light Navy Blue #2E5A88 ΔE 0.042
- Dusk Blue #26538D ΔE 0.045
- Denim #3B638C ΔE 0.048
- Dusty Grape #545775 ΔE 0.051
Use #4B5491 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.