#4A577F
Closest named color: Dusk (#4E5481). oklch(46.3% 0.067 269.9), rgb(74, 87, 127).
Aa
White text reads best on this color (7.09:1).
About this color
#4A577F is a medium-dark, muted blue. In OKLCH its lightness is 46%, its chroma 0.067 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.011 away. White text reads best on it, at 7.09:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.96:1 |
| White text | 7.09:1 |
Values
| HEX | #4A577F |
| RGB | rgb(74, 87, 127) |
| HSL | hsl(225, 26%, 39%) |
| OKLCH | oklch(46.3% 0.067 269.9) |
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 #4A577F | 7.09:1 | AAA | Lc -89.5 | Fine for body text |
| Black text on #4A577F | 2.96:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #4A577F text on white | 7.09:1 | AAA | Lc 84.6 | Fine for body text |
| #4A577F text on black | 2.96:1 | Fails | Lc -17.4 | 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
#E7EAF0
oklch(93.6% 0.009 264.5)
-
Step 200
200
#D4D9E6
oklch(88.5% 0.019 269.1)
-
Step 300
300
#B8C0D6
oklch(80.9% 0.032 269.8)
-
Step 400
400
#94A0C2
oklch(70.8% 0.052 269.8)
-
Step 500
500
#7988B3
oklch(63.1% 0.067 269.5)
-
Step 600
600
#62719E
oklch(55.5% 0.073 269.8)
-
Step 700
700 (this color)
#4A577F
oklch(46.3% 0.067 269.9)
-
Step 800
800
#434E6E
oklch(42.8% 0.055 269.4)
-
Step 900
900
#384159
oklch(37.8% 0.043 268.4)
-
Step 950
950
#212634
oklch(27% 0.027 269.3)
#4A577F 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) | #495B81 | 0.011 |
| Deuteranopia (no green cones) | #45567E | 0.008 |
| Tritanopia (no blue cones) | #395F65 | 0.060 |
| Achromatopsia (no color) | #585858 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A577F
#4A577F
oklch(46.3% 0.067 269.9)
- #685729
#685729
oklch(46.3% 0.068 89.3)
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 #4A577F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.011
- Dusty Grape #545775 ΔE 0.021
- YInMn Blue #415A77 ΔE 0.022
- Twilight #4E518B ΔE 0.030
- Denim Blue #3B5B92 ΔE 0.034
- Light Navy Blue #2E5A88 ΔE 0.034
- Dusky Blue #475F94 ΔE 0.037
- Denim #3B638C ΔE 0.038
Use #4A577F 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.