#4B3561
Closest named color: Dark Slate Blue (#483D8B). oklch(37.4% 0.077 306), rgb(75, 53, 97).
Aa
White text reads best on this color (10.60:1).
About this color
#4B3561 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.077 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.071 away. White text reads best on it, at 10.60:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.077) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.98:1 |
| White text | 10.60:1 |
Values
| HEX | #4B3561 |
| RGB | rgb(75, 53, 97) |
| HSL | hsl(270, 29%, 29%) |
| OKLCH | oklch(37.4% 0.077 306) |
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 #4B3561 | 10.60:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #4B3561 | 1.98:1 | Fails | Lc 9.4 | Not readable |
| #4B3561 text on white | 10.60:1 | AAA | Lc 94.5 | Preferred for body text |
| #4B3561 text on black | 1.98:1 | Fails | Lc -8.1 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#ECE7F3
oklch(93.5% 0.017 304.8)
-
Step 200
200
#DED4EA
oklch(88.5% 0.032 306.2)
-
Step 300
300
#CAB8DF
oklch(81% 0.057 306)
-
Step 400
400
#AF92CF
oklch(70.8% 0.093 305.9)
-
Step 500
500
#9B75C2
oklch(63% 0.119 306)
-
Step 600
600
#865DAE
oklch(55.6% 0.128 306)
-
Step 700
700
#724C96
oklch(49.1% 0.12 306.2)
-
Step 800
800
#5D3F7A
oklch(42.8% 0.1 306.1)
-
Step 900
900 (this color)
#4B3561
oklch(37.4% 0.077 306)
-
Step 950
950
#2C2039
oklch(27% 0.048 305.5)
#4B3561 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) | #2B3E63 | 0.055 |
| Deuteranopia (no green cones) | #303F60 | 0.051 |
| Tritanopia (no blue cones) | #483C46 | 0.057 |
| Achromatopsia (no color) | #3F3F3F | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B3561
#4B3561
oklch(37.4% 0.077 306)
- #364815
#364815
oklch(37.4% 0.078 126.5)
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 #4B3561, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.071
- Dark Grey Blue #29465B ΔE 0.072
- Prussian Blue #1D3557 ΔE 0.076
- Onyx #343A40 ΔE 0.077
- Grape Purple #5D1451 ΔE 0.078
- Charcoal Grey #3C4142 ΔE 0.078
- Dark Blue Grey #1F3B4D ΔE 0.082
- Charcoal #264653 ΔE 0.082
Use #4B3561 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.