#4A3D78
Closest named color: Dark Slate Blue (#483D8B). oklch(40.3% 0.097 291.6), rgb(74, 61, 120).
Aa
White text reads best on this color (9.41:1).
About this color
#4A3D78 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.097 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.032 away. White text reads best on it, at 9.41:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.22:1 |
| White text | 9.41:1 |
Values
| HEX | #4A3D78 |
| RGB | rgb(74, 61, 120) |
| HSL | hsl(253, 33%, 35%) |
| OKLCH | oklch(40.3% 0.097 291.6) |
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 #4A3D78 | 9.41:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #4A3D78 | 2.22:1 | Fails | Lc 12.3 | Not readable |
| #4A3D78 text on white | 9.41:1 | AAA | Lc 91.6 | Preferred for body text |
| #4A3D78 text on black | 2.22:1 | Fails | Lc -10.7 | 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 800.
-
Step 50
50
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#EAE8F4
oklch(93.6% 0.016 293.7)
-
Step 200
200
#D9D6ED
oklch(88.5% 0.031 291.7)
-
Step 300
300
#C0BBE3
oklch(80.9% 0.056 290.8)
-
Step 400
400
#A197D5
oklch(70.8% 0.09 291.3)
-
Step 500
500
#8B7CCA
oklch(63.2% 0.116 291.6)
-
Step 600
600
#7564B6
oklch(55.6% 0.125 291.3)
-
Step 700
700
#63529D
oklch(49.1% 0.117 291.9)
-
Step 800
800 (this color)
#4A3D78
oklch(40.3% 0.097 291.6)
-
Step 900
900
#423966
oklch(37.6% 0.076 291.5)
-
Step 950
950
#27223C
oklch(27.1% 0.048 291.7)
#4A3D78 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) | #28477A | 0.052 |
| Deuteranopia (no green cones) | #294577 | 0.050 |
| Tritanopia (no blue cones) | #3E4954 | 0.081 |
| Achromatopsia (no color) | #464646 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A3D78
#4A3D78
oklch(40.3% 0.097 291.6)
- #4A4D00
#4A4D00
oklch(40.4% 0.09 112.3)
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 #4A3D78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.032
- Blueberry #464196 ΔE 0.050
- Twilight #4E518B ΔE 0.060
- Dusk #4E5481 ΔE 0.066
- Cobalt #1E488F ΔE 0.068
- Twilight Blue #0A437A ΔE 0.073
- Dusk Blue #26538D ΔE 0.074
- Light Navy #155084 ΔE 0.075
Use #4A3D78 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.