#4D5583
Closest named color: Dusk (#4E5481). oklch(46.3% 0.075 275.5), rgb(77, 85, 131).
Aa
White text reads best on this color (7.13:1).
About this color
#4D5583 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.075 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.004 away. White text reads best on it, at 7.13:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.94:1 |
| White text | 7.13:1 |
Values
| HEX | #4D5583 |
| RGB | rgb(77, 85, 131) |
| HSL | hsl(231, 26%, 41%) |
| OKLCH | oklch(46.3% 0.075 275.5) |
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 #4D5583 | 7.13:1 | AAA | Lc -89.6 | Fine for body text |
| Black text on #4D5583 | 2.94:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #4D5583 text on white | 7.13:1 | AAA | Lc 84.7 | Fine for body text |
| #4D5583 text on black | 2.94:1 | Fails | Lc -17.3 | 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 700.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D5D8E7
oklch(88.4% 0.021 276.9)
-
Step 300
300
#B9BFD9
oklch(80.8% 0.037 275.2)
-
Step 400
400
#969EC6
oklch(70.7% 0.059 276)
-
Step 500
500
#7C86B7
oklch(63.1% 0.075 275.2)
-
Step 600
600
#666FA3
oklch(55.6% 0.082 275.9)
-
Step 700
700 (this color)
#4D5583
oklch(46.3% 0.075 275.5)
-
Step 800
800
#454C71
oklch(42.7% 0.062 275.3)
-
Step 900
900
#3A3F5C
oklch(37.6% 0.05 276.2)
-
Step 950
950
#222536
oklch(27% 0.032 276.3)
#4D5583 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) | #465A85 | 0.016 |
| Deuteranopia (no green cones) | #425682 | 0.015 |
| Tritanopia (no blue cones) | #3C5E66 | 0.067 |
| Achromatopsia (no color) | #585858 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D5583
#4D5583
oklch(46.3% 0.075 275.5)
- #665822
#665822
oklch(46.2% 0.075 94.7)
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 #4D5583, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.004
- Twilight #4E518B ΔE 0.019
- Dusty Grape #545775 ΔE 0.027
- YInMn Blue #415A77 ΔE 0.032
- Denim Blue #3B5B92 ΔE 0.033
- Dusky Blue #475F94 ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.038
- Denim #3B638C ΔE 0.043
Use #4D5583 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.