#4C3B88
Closest named color: Dark Slate Blue (#483D8B). oklch(41.2% 0.123 290.1), rgb(76, 59, 136).
Aa
White text reads best on this color (9.17:1).
About this color
#4C3B88 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.123 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 0.009 away. White text reads best on it, at 9.17:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.28:1 |
| White text | 9.17:1 |
Values
| HEX | #4C3B88 |
| RGB | rgb(76, 59, 136) |
| HSL | hsl(253, 39%, 38%) |
| OKLCH | oklch(41.2% 0.123 290.1) |
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 #4C3B88 | 9.17:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #4C3B88 | 2.28:1 | Fails | Lc 13.1 | Not readable |
| #4C3B88 text on white | 9.17:1 | AAA | Lc 90.9 | Preferred for body text |
| #4C3B88 text on black | 2.28:1 | Fails | Lc -11.4 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F7
oklch(93.6% 0.02 289.1)
-
Step 200
200
#D8D5F2
oklch(88.4% 0.04 290.3)
-
Step 300
300
#BFB9ED
oklch(80.8% 0.073 289.9)
-
Step 400
400
#A094E3
oklch(70.8% 0.114 290.1)
-
Step 500
500
#8A77DB
oklch(63.1% 0.147 290.3)
-
Step 600
600
#755EC9
oklch(55.7% 0.16 290.1)
-
Step 700
700
#624CAE
oklch(49% 0.15 290.1)
-
Step 800
800 (this color)
#4C3B88
oklch(41.2% 0.123 290.1)
-
Step 900
900
#423670
oklch(37.6% 0.096 290.5)
-
Step 950
950
#262042
oklch(26.9% 0.062 289.7)
#4C3B88 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) | #13498B | 0.072 |
| Deuteranopia (no green cones) | #164686 | 0.070 |
| Tritanopia (no blue cones) | #3B4C5B | 0.103 |
| Achromatopsia (no color) | #484848 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C3B88
#4C3B88
oklch(41.2% 0.123 290.1)
- #4E4F00
#4E4F00
oklch(41.3% 0.091 110.6)
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 #4C3B88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.009
- Blueberry #464196 ΔE 0.027
- Rebecca Purple #663399 ΔE 0.057
- Twilight #4E518B ΔE 0.059
- Cobalt #1E488F ΔE 0.064
- Dusk #4E5481 ΔE 0.073
- Dusk Blue #26538D ΔE 0.075
- Light Navy #155084 ΔE 0.081
Use #4C3B88 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.