#4A318F
Closest named color: Dark Slate Blue (#483D8B). oklch(39.8% 0.148 290.3), rgb(74, 49, 143).
Aa
White text reads best on this color (9.87:1).
About this color
#4A318F is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.148 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.030 away. White text reads best on it, at 9.87:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.12:1 |
| White text | 9.87:1 |
Values
| HEX | #4A318F |
| RGB | rgb(74, 49, 143) |
| HSL | hsl(256, 49%, 38%) |
| OKLCH | oklch(39.8% 0.148 290.3) |
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 #4A318F | 9.87:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #4A318F | 2.12:1 | Fails | Lc 11.5 | Not readable |
| #4A318F text on white | 9.87:1 | AAA | Lc 92.4 | Preferred for body text |
| #4A318F text on black | 2.12:1 | Fails | Lc -10.0 | 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
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#E9E7FE
oklch(93.6% 0.031 289.8)
-
Step 200
200
#D8D3FF
oklch(88.5% 0.06 290.3)
-
Step 300
300
#C0B5FF
oklch(80.9% 0.104 290.7)
-
Step 400
400
#A18BFF
oklch(70.7% 0.166 290.2)
-
Step 500
500
#8D67FF
oklch(63% 0.216 290.4)
-
Step 600
600
#7A43F5
oklch(55.6% 0.246 290.1)
-
Step 700
700
#6832D5
oklch(49.1% 0.229 290.4)
-
Step 800
800
#542CAC
oklch(42.7% 0.189 290.3)
-
Step 900
900 (this color)
#4A318F
oklch(39.8% 0.148 290.3)
-
Step 950
950
#281A50
oklch(27% 0.094 290.6)
#4A318F 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) | #004592 | 0.084 |
| Deuteranopia (no green cones) | #00418D | 0.083 |
| Tritanopia (no blue cones) | #34475B | 0.119 |
| Achromatopsia (no color) | #434343 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A318F
#4A318F
oklch(39.8% 0.148 290.3)
- #4A4B00
#4A4B00
oklch(39.9% 0.087 110.6)
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 #4A318F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.030
- Blueberry #464196 ΔE 0.039
- Rebecca Purple #663399 ΔE 0.056
- Imperial Purple #480CA8 ΔE 0.064
- Chrysanthemum #560BAD ΔE 0.069
- Indigo #4B0082 ΔE 0.075
- Sapphire #2138AB ΔE 0.075
- Indigo Blue #3A18B1 ΔE 0.076
Use #4A318F 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.