#4D557F
Closest named color: Dusk (#4E5481). oklch(46.1% 0.069 275.1), rgb(77, 85, 127).
Aa
White text reads best on this color (7.18:1).
About this color
#4D557F is a medium-dark, muted blue. In OKLCH its lightness is 46%, its chroma 0.069 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.005 away. White text reads best on it, at 7.18:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.92:1 |
| White text | 7.18:1 |
Values
| HEX | #4D557F |
| RGB | rgb(77, 85, 127) |
| HSL | hsl(230, 25%, 40%) |
| OKLCH | oklch(46.1% 0.069 275.1) |
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 #4D557F | 7.18:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #4D557F | 2.92:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #4D557F text on white | 7.18:1 | AAA | Lc 84.9 | Fine for body text |
| #4D557F text on black | 2.92:1 | Fails | Lc -17.1 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E8E9F0
oklch(93.5% 0.009 279.7)
-
Step 200
200
#D5D8E6
oklch(88.4% 0.019 276.3)
-
Step 300
300
#BABFD7
oklch(80.8% 0.034 276.3)
-
Step 400
400
#969EC3
oklch(70.6% 0.055 275.4)
-
Step 500
500
#7D86B3
oklch(63% 0.069 275.5)
-
Step 600
600
#66709F
oklch(55.6% 0.074 274.5)
-
Step 700
700 (this color)
#4D557F
oklch(46.1% 0.069 275.1)
-
Step 800
800
#464C6F
oklch(42.6% 0.059 276.2)
-
Step 900
900
#3A4059
oklch(37.7% 0.044 273.7)
-
Step 950
950
#222534
oklch(26.8% 0.028 275.6)
#4D557F 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) | #475981 | 0.013 |
| Deuteranopia (no green cones) | #44557E | 0.013 |
| Tritanopia (no blue cones) | #3E5D64 | 0.061 |
| Achromatopsia (no color) | #575757 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D557F
#4D557F
oklch(46.1% 0.069 275.1)
- #645827
#645827
oklch(46.1% 0.07 95.8)
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 #4D557F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.005
- Dusty Grape #545775 ΔE 0.022
- Twilight #4E518B ΔE 0.025
- YInMn Blue #415A77 ΔE 0.027
- Denim Blue #3B5B92 ΔE 0.037
- Light Navy Blue #2E5A88 ΔE 0.039
- Dusky Blue #475F94 ΔE 0.039
- Denim #3B638C ΔE 0.044
Use #4D557F 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.