#4A587D
Closest named color: Dusk (#4E5481). oklch(46.4% 0.063 268), rgb(74, 88, 125).
Aa
White text reads best on this color (7.03:1).
About this color
#4A587D is a medium-dark, muted blue. In OKLCH its lightness is 46%, its chroma 0.063 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.016 away. White text reads best on it, at 7.03:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.98:1 |
| White text | 7.03:1 |
Values
| HEX | #4A587D |
| RGB | rgb(74, 88, 125) |
| HSL | hsl(224, 26%, 39%) |
| OKLCH | oklch(46.4% 0.063 268) |
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 #4A587D | 7.03:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #4A587D | 2.98:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #4A587D text on white | 7.03:1 | AAA | Lc 84.4 | Fine for body text |
| #4A587D text on black | 2.98:1 | Fails | Lc -17.6 | 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 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
#D4D9E5
oklch(88.5% 0.017 267.8)
-
Step 300
300
#B8C0D5
oklch(80.8% 0.031 269.1)
-
Step 400
400
#93A0C0
oklch(70.7% 0.049 267.7)
-
Step 500
500
#7989B0
oklch(63.2% 0.062 267.3)
-
Step 600
600
#62729C
oklch(55.6% 0.068 268.1)
-
Step 700
700 (this color)
#4A587D
oklch(46.4% 0.063 268)
-
Step 800
800
#434E6C
oklch(42.7% 0.052 268.6)
-
Step 900
900
#384158
oklch(37.7% 0.041 267.9)
-
Step 950
950
#212633
oklch(27% 0.025 268.3)
#4A587D 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) | #4B5B7F | 0.009 |
| Deuteranopia (no green cones) | #47577C | 0.006 |
| Tritanopia (no blue cones) | #3A6065 | 0.057 |
| Achromatopsia (no color) | #595959 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A587D
#4A587D
oklch(46.4% 0.063 268)
- #68572E
#68572E
oklch(46.4% 0.062 87.4)
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 #4A587D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.016
- YInMn Blue #415A77 ΔE 0.018
- Dusty Grape #545775 ΔE 0.018
- Twilight #4E518B ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.035
- Denim Blue #3B5B92 ΔE 0.037
- Denim #3B638C ΔE 0.037
- Dusky Blue #475F94 ΔE 0.038
Use #4A587D 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.