#4B3B76
Closest named color: Dark Slate Blue (#483D8B). oklch(39.9% 0.097 294), rgb(75, 59, 118).
Aa
White text reads best on this color (9.60:1).
About this color
#4B3B76 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.097 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.035 away. White text reads best on it, at 9.60:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.18:1 |
| White text | 9.60:1 |
Values
| HEX | #4B3B76 |
| RGB | rgb(75, 59, 118) |
| HSL | hsl(256, 33%, 35%) |
| OKLCH | oklch(39.9% 0.097 294) |
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 #4B3B76 | 9.60:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #4B3B76 | 2.18:1 | Fails | Lc 11.9 | Not readable |
| #4B3B76 text on white | 9.60:1 | AAA | Lc 92.1 | Preferred for body text |
| #4B3B76 text on black | 2.18:1 | Fails | Lc -10.3 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EAE7F7
oklch(93.5% 0.022 294.6)
-
Step 200
200
#DAD5F2
oklch(88.6% 0.04 293.5)
-
Step 300
300
#C3B8EC
oklch(80.9% 0.073 294.4)
-
Step 400
400
#A592E2
oklch(70.8% 0.116 294.1)
-
Step 500
500
#9075DA
oklch(63.2% 0.149 294)
-
Step 600
600
#7B5BC7
oklch(55.6% 0.162 294.2)
-
Step 700
700
#684AAC
oklch(49.1% 0.151 294.3)
-
Step 800
800
#543D8B
oklch(42.6% 0.125 294.1)
-
Step 900
900 (this color)
#4B3B76
oklch(39.9% 0.097 294)
-
Step 950
950
#282041
oklch(27% 0.06 293.1)
#4B3B76 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) | #264678 | 0.057 |
| Deuteranopia (no green cones) | #294475 | 0.054 |
| Tritanopia (no blue cones) | #414653 | 0.077 |
| Achromatopsia (no color) | #454545 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B3B76
#4B3B76
oklch(39.9% 0.097 294)
- #474C00
#474C00
oklch(39.8% 0.09 114)
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 #4B3B76, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.035
- Blueberry #464196 ΔE 0.054
- Twilight #4E518B ΔE 0.066
- Dusk #4E5481 ΔE 0.071
- Cobalt #1E488F ΔE 0.073
- Twilight Blue #0A437A ΔE 0.075
- Rebecca Purple #663399 ΔE 0.078
- Light Navy #155084 ΔE 0.080
Use #4B3B76 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.