#4A3F75
Closest named color: Dark Slate Blue (#483D8B). oklch(40.5% 0.089 291.3), rgb(74, 63, 117).
Aa
White text reads best on this color (9.29:1).
About this color
#4A3F75 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.089 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 0.038 away. White text reads best on it, at 9.29:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.089) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.25:1 |
| White text | 9.29:1 |
Values
| HEX | #4A3F75 |
| RGB | rgb(74, 63, 117) |
| HSL | hsl(252, 30%, 35%) |
| OKLCH | oklch(40.5% 0.089 291.3) |
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 #4A3F75 | 9.29:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #4A3F75 | 2.25:1 | Fails | Lc 12.6 | Not readable |
| #4A3F75 text on white | 9.29:1 | AAA | Lc 91.3 | Preferred for body text |
| #4A3F75 text on black | 2.25:1 | Fails | Lc -11.0 | 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 800.
-
Step 50
50
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#EAE8F3
oklch(93.6% 0.015 294.5)
-
Step 200
200
#D9D6EB
oklch(88.5% 0.029 292.4)
-
Step 300
300
#C0BBE0
oklch(80.8% 0.052 291.4)
-
Step 400
400
#A198D1
oklch(70.8% 0.083 291.4)
-
Step 500
500
#8A7DC5
oklch(63.1% 0.107 291.3)
-
Step 600
600
#7465B1
oklch(55.5% 0.116 291.2)
-
Step 700
700
#625498
oklch(49.1% 0.107 291.4)
-
Step 800
800 (this color)
#4A3F75
oklch(40.5% 0.089 291.3)
-
Step 900
900
#423A63
oklch(37.6% 0.069 291.7)
-
Step 950
950
#27223A
oklch(26.9% 0.044 292.7)
#4A3F75 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) | #2D4877 | 0.046 |
| Deuteranopia (no green cones) | #2E4674 | 0.044 |
| Tritanopia (no blue cones) | #3F4954 | 0.073 |
| Achromatopsia (no color) | #474747 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A3F75
#4A3F75
oklch(40.5% 0.089 291.3)
- #4B4D01
#4B4D01
oklch(40.5% 0.089 111.5)
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 #4A3F75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.038
- Blueberry #464196 ΔE 0.055
- Twilight #4E518B ΔE 0.058
- Dusk #4E5481 ΔE 0.061
- Cobalt #1E488F ΔE 0.069
- Twilight Blue #0A437A ΔE 0.072
- Dusk Blue #26538D ΔE 0.072
- Light Navy #155084 ΔE 0.072
Use #4A3F75 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.