#4D427E
Closest named color: Dark Slate Blue (#483D8B). oklch(42% 0.098 290), rgb(77, 66, 126).
Aa
White text reads best on this color (8.76:1).
About this color
#4D427E is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.098 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.029 away. White text reads best on it, at 8.76:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.39:1 |
| White text | 8.76:1 |
Values
| HEX | #4D427E |
| RGB | rgb(77, 66, 126) |
| HSL | hsl(251, 31%, 38%) |
| OKLCH | oklch(42% 0.098 290) |
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 #4D427E | 8.76:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #4D427E | 2.39:1 | Fails | Lc 14.1 | Not readable |
| #4D427E text on white | 8.76:1 | AAA | Lc 89.9 | Fine for body text |
| #4D427E text on black | 2.39:1 | Fails | Lc -12.4 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F4
oklch(93.5% 0.016 289.9)
-
Step 200
200
#D8D6ED
oklch(88.5% 0.031 289.7)
-
Step 300
300
#BFBBE4
oklch(80.9% 0.057 289.5)
-
Step 400
400
#9F97D6
oklch(70.7% 0.091 289.7)
-
Step 500
500
#897CCB
oklch(63.1% 0.117 290.2)
-
Step 600
600
#7364B8
oklch(55.6% 0.127 289.8)
-
Step 700
700
#61539E
oklch(49.2% 0.117 290)
-
Step 800
800 (this color)
#4D427E
oklch(42% 0.098 290)
-
Step 900
900
#413A67
oklch(37.7% 0.076 289.4)
-
Step 950
950
#26223C
oklch(27% 0.048 289.9)
#4D427E 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) | #2D4C80 | 0.049 |
| Deuteranopia (no green cones) | #2D497D | 0.048 |
| Tritanopia (no blue cones) | #404E5A | 0.081 |
| Achromatopsia (no color) | #4B4B4B | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D427E
#4D427E
oklch(42% 0.098 290)
- #505100
#505100
oklch(42% 0.092 110.6)
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 #4D427E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.029
- Blueberry #464196 ΔE 0.042
- Twilight #4E518B ΔE 0.044
- Dusk #4E5481 ΔE 0.051
- Cobalt #1E488F ΔE 0.064
- Dusk Blue #26538D ΔE 0.065
- Dusty Grape #545775 ΔE 0.068
- Light Navy #155084 ΔE 0.070
Use #4D427E 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.