#4C59AC
Closest named color: Dusky Blue (#475F94). oklch(49.6% 0.132 273.9), rgb(76, 89, 172).
Aa
White text reads best on this color (6.30:1).
About this color
#4C59AC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.132 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.045 away. White text reads best on it, at 6.30:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.33:1 |
| White text | 6.30:1 |
Values
| HEX | #4C59AC |
| RGB | rgb(76, 89, 172) |
| HSL | hsl(232, 39%, 49%) |
| OKLCH | oklch(49.6% 0.132 273.9) |
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 #4C59AC | 6.30:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #4C59AC | 3.33:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #4C59AC text on white | 6.30:1 | AA | Lc 81.2 | Fine for body text |
| #4C59AC text on black | 3.33:1 | AA large text | Lc -20.7 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D1D8F1
oklch(88.5% 0.035 273.2)
-
Step 300
300
#B3BEEB
oklch(80.8% 0.065 274.1)
-
Step 400
400
#8D9CE0
oklch(70.8% 0.101 274)
-
Step 500
500
#7182D8
oklch(63.1% 0.131 273.6)
-
Step 600
600
#5B6AC5
oklch(55.7% 0.141 273.9)
-
Step 700
700 (this color)
#4C59AC
oklch(49.6% 0.132 273.9)
-
Step 800
800
#3D488A
oklch(42.7% 0.109 273.8)
-
Step 900
900
#343D6E
oklch(37.7% 0.084 273.8)
-
Step 950
950
#1E2441
oklch(27% 0.055 273.4)
#4C59AC 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) | #3264AF | 0.037 |
| Deuteranopia (no green cones) | #255CAA | 0.041 |
| Tritanopia (no blue cones) | #186B7A | 0.117 |
| Achromatopsia (no color) | #606060 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C59AC
#4C59AC
oklch(49.6% 0.132 273.9)
- #756000
#756000
oklch(49.5% 0.102 94)
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 #4C59AC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.045
- French Blue #436BAD ΔE 0.049
- Denim Blue #3B5B92 ΔE 0.049
- Iris #6258C4 ΔE 0.050
- Mid Blue #276AB3 ΔE 0.053
- Twilight #4E518B ΔE 0.054
- Denim #3B638C ΔE 0.067
- Dusk #4E5481 ΔE 0.069
Use #4C59AC 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.