#4C428E
Closest named color: Dark Slate Blue (#483D8B). oklch(43% 0.121 286.1), rgb(76, 66, 142).
Aa
White text reads best on this color (8.47:1).
About this color
#4C428E is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.121 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.016 away. White text reads best on it, at 8.47:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.47:1 |
| White text | 8.47:1 |
Values
| HEX | #4C428E |
| RGB | rgb(76, 66, 142) |
| HSL | hsl(248, 37%, 41%) |
| OKLCH | oklch(43% 0.121 286.1) |
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 #4C428E | 8.47:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #4C428E | 2.47:1 | Fails | Lc 15.0 | Dividers and decoration only |
| #4C428E text on white | 8.47:1 | AAA | Lc 89.0 | Fine for body text |
| #4C428E text on black | 2.47:1 | Fails | Lc -13.2 | 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
#F5F5FC
oklch(97.2% 0.009 286.2)
-
Step 100
100
#E8E8F7
oklch(93.5% 0.02 286)
-
Step 200
200
#D6D6F3
oklch(88.5% 0.04 285.6)
-
Step 300
300
#BCBBED
oklch(81% 0.07 285.6)
-
Step 400
400
#9B96E4
oklch(70.8% 0.113 286.1)
-
Step 500
500
#847ADC
oklch(63.2% 0.144 286.2)
-
Step 600
600
#6E60CA
oklch(55.5% 0.158 286.1)
-
Step 700
700
#5C4FAE
oklch(49% 0.146 285.9)
-
Step 800
800 (this color)
#4C428E
oklch(43% 0.121 286.1)
-
Step 900
900
#3E3871
oklch(37.7% 0.095 285.7)
-
Step 950
950
#242142
oklch(26.9% 0.06 285.8)
#4C428E 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) | #1E4F91 | 0.061 |
| Deuteranopia (no green cones) | #1C4B8C | 0.061 |
| Tritanopia (no blue cones) | #375261 | 0.102 |
| Achromatopsia (no color) | #4D4D4D | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C428E
#4C428E
oklch(43% 0.121 286.1)
- #575200
#575200
oklch(43% 0.091 105.6)
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 #4C428E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.016
- Blueberry #464196 ΔE 0.017
- Twilight #4E518B ΔE 0.043
- Cobalt #1E488F ΔE 0.058
- Rebecca Purple #663399 ΔE 0.058
- Dusk #4E5481 ΔE 0.059
- Dusk Blue #26538D ΔE 0.062
- Denim Blue #3B5B92 ΔE 0.069
Use #4C428E 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.