#4A3786
Closest named color: Dark Slate Blue (#483D8B). oklch(40.2% 0.127 290.6), rgb(74, 55, 134).
Aa
White text reads best on this color (9.62:1).
About this color
#4A3786 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.127 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.016 away. White text reads best on it, at 9.62:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.18:1 |
| White text | 9.62:1 |
Values
| HEX | #4A3786 |
| RGB | rgb(74, 55, 134) |
| HSL | hsl(254, 42%, 37%) |
| OKLCH | oklch(40.2% 0.127 290.6) |
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 #4A3786 | 9.62:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #4A3786 | 2.18:1 | Fails | Lc 12.0 | Not readable |
| #4A3786 text on white | 9.62:1 | AAA | Lc 92.0 | Preferred for body text |
| #4A3786 text on black | 2.18:1 | Fails | Lc -10.4 | Not readable |
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 900.
-
Step 50
50
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E9E7FB
oklch(93.5% 0.027 290.5)
-
Step 200
200
#D8D4FA
oklch(88.5% 0.052 290.1)
-
Step 300
300
#C0B6FA
oklch(80.9% 0.095 290.8)
-
Step 400
400
#A18DF7
oklch(70.6% 0.152 290.6)
-
Step 500
500
#8D6DF4
oklch(63.2% 0.194 290.7)
-
Step 600
600
#7850E3
oklch(55.6% 0.211 290.4)
-
Step 700
700
#663FC5
oklch(49.2% 0.197 290.7)
-
Step 800
800
#53359F
oklch(42.7% 0.163 290.9)
-
Step 900
900 (this color)
#4A3786
oklch(40.2% 0.127 290.6)
-
Step 950
950
#271D4A
oklch(27% 0.08 290.2)
#4A3786 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) | #064689 | 0.077 |
| Deuteranopia (no green cones) | #0C4384 | 0.075 |
| Tritanopia (no blue cones) | #394859 | 0.102 |
| Achromatopsia (no color) | #454545 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A3786
#4A3786
oklch(40.2% 0.127 290.6)
- #4B4C00
#4B4C00
oklch(40.2% 0.088 110.6)
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 #4A3786, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.016
- Blueberry #464196 ΔE 0.035
- Rebecca Purple #663399 ΔE 0.060
- Cobalt #1E488F ΔE 0.068
- Twilight #4E518B ΔE 0.070
- Twilight Blue #0A437A ΔE 0.081
- Dusk Blue #26538D ΔE 0.083
- Dusk #4E5481 ΔE 0.083
Use #4A3786 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.