#4D5380
Closest named color: Dusk (#4E5481). oklch(45.7% 0.074 277.3), rgb(77, 83, 128).
Aa
White text reads best on this color (7.33:1).
About this color
#4D5380 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.074 and its hue 277°. 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 7.33:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.86:1 |
| White text | 7.33:1 |
Values
| HEX | #4D5380 |
| RGB | rgb(77, 83, 128) |
| HSL | hsl(233, 25%, 40%) |
| OKLCH | oklch(45.7% 0.074 277.3) |
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 #4D5380 | 7.33:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #4D5380 | 2.86:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #4D5380 text on white | 7.33:1 | AAA | Lc 85.4 | Fine for body text |
| #4D5380 text on black | 2.86:1 | Fails | Lc -16.6 | 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 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
#D5D8E9
oklch(88.5% 0.023 277.9)
-
Step 300
300
#B9BFDD
oklch(81% 0.043 276.5)
-
Step 400
400
#959DCC
oklch(70.7% 0.069 277)
-
Step 500
500
#7C84BF
oklch(63% 0.089 277.6)
-
Step 600
600
#666DAB
oklch(55.6% 0.096 277.9)
-
Step 700
700
#545B93
oklch(49.1% 0.09 277.1)
-
Step 800
800 (this color)
#4D5380
oklch(45.7% 0.074 277.3)
-
Step 900
900
#3A3F60
oklch(37.8% 0.057 276.7)
-
Step 950
950
#222538
oklch(27.1% 0.036 276.8)
#4D5380 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) | #445882 | 0.018 |
| Deuteranopia (no green cones) | #41547F | 0.017 |
| Tritanopia (no blue cones) | #3E5C63 | 0.066 |
| Achromatopsia (no color) | #565656 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D5380
#4D5380
oklch(45.7% 0.074 277.3)
- #635722
#635722
oklch(45.7% 0.074 96.6)
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 #4D5380, 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 0.020
- Dusty Grape #545775 ΔE 0.027
- YInMn Blue #415A77 ΔE 0.033
- Denim Blue #3B5B92 ΔE 0.038
- Light Navy Blue #2E5A88 ΔE 0.040
- Dusky Blue #475F94 ΔE 0.042
- Denim #3B638C ΔE 0.048
Use #4D5380 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.