#4A537D
Closest named color: Dusk (#4E5481). oklch(45.3% 0.07 274.1), rgb(74, 83, 125).
Aa
White text reads best on this color (7.43:1).
About this color
#4A537D is a medium-dark, muted blue. In OKLCH its lightness is 45%, its chroma 0.070 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.009 away. White text reads best on it, at 7.43:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.82:1 |
| White text | 7.43:1 |
Values
| HEX | #4A537D |
| RGB | rgb(74, 83, 125) |
| HSL | hsl(229, 26%, 39%) |
| OKLCH | oklch(45.3% 0.07 274.1) |
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 #4A537D | 7.43:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #4A537D | 2.82:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #4A537D text on white | 7.43:1 | AAA | Lc 85.8 | Fine for body text |
| #4A537D text on black | 2.82:1 | Fails | Lc -16.3 | 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 800.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F2
oklch(93.5% 0.012 276.1)
-
Step 200
200
#D4D8E9
oklch(88.4% 0.024 275.3)
-
Step 300
300
#B8BFDC
oklch(80.9% 0.042 274.7)
-
Step 400
400
#949ECA
oklch(70.7% 0.065 274.6)
-
Step 500
500
#7A86BC
oklch(63.2% 0.083 274.2)
-
Step 600
600
#636FA8
oklch(55.6% 0.09 274.1)
-
Step 700
700
#525D90
oklch(49.2% 0.083 273.7)
-
Step 800
800 (this color)
#4A537D
oklch(45.3% 0.07 274.1)
-
Step 900
900
#393F5F
oklch(37.7% 0.055 275.3)
-
Step 950
950
#212537
oklch(26.9% 0.034 274.3)
#4A537D 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) | #45577F | 0.013 |
| Deuteranopia (no green cones) | #41537C | 0.013 |
| Tritanopia (no blue cones) | #3A5B62 | 0.062 |
| Achromatopsia (no color) | #555555 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A537D
#4A537D
oklch(45.3% 0.07 274.1)
- #635524
#635524
oklch(45.2% 0.07 93.5)
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 #4A537D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.009
- Dusty Grape #545775 ΔE 0.026
- Twilight #4E518B ΔE 0.026
- YInMn Blue #415A77 ΔE 0.028
- Light Navy Blue #2E5A88 ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.039
- Dusky Blue #475F94 ΔE 0.045
- Denim #3B638C ΔE 0.048
Use #4A537D 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.