#4F388F
Closest named color: Dark Slate Blue (#483D8B). oklch(41.5% 0.138 291.4), rgb(79, 56, 143).
Aa
White text reads best on this color (9.15:1).
About this color
#4F388F is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.138 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 0.018 away. White text reads best on it, at 9.15:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.29:1 |
| White text | 9.15:1 |
Values
| HEX | #4F388F |
| RGB | rgb(79, 56, 143) |
| HSL | hsl(256, 44%, 39%) |
| OKLCH | oklch(41.5% 0.138 291.4) |
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 #4F388F | 9.15:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #4F388F | 2.29:1 | Fails | Lc 13.2 | Not readable |
| #4F388F text on white | 9.15:1 | AAA | Lc 90.7 | Preferred for body text |
| #4F388F text on black | 2.29:1 | Fails | Lc -11.6 | 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
#EAE7F9
oklch(93.6% 0.024 293.6)
-
Step 200
200
#D9D5F5
oklch(88.6% 0.044 291.2)
-
Step 300
300
#C1B8F1
oklch(81% 0.08 291.7)
-
Step 400
400
#A291EA
oklch(70.7% 0.128 291.5)
-
Step 500
500
#8C73E4
oklch(63.1% 0.165 291.1)
-
Step 600
600
#7858D1
oklch(55.5% 0.179 291.7)
-
Step 700
700
#6547B5
oklch(49% 0.166 291.6)
-
Step 800
800 (this color)
#4F388F
oklch(41.5% 0.138 291.4)
-
Step 900
900
#443475
oklch(37.8% 0.107 291.8)
-
Step 950
950
#271F45
oklch(27% 0.069 290.8)
#4F388F 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) | #004992 | 0.085 |
| Deuteranopia (no green cones) | #00468D | 0.085 |
| Tritanopia (no blue cones) | #3D4B5E | 0.110 |
| Achromatopsia (no color) | #484848 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F388F
#4F388F
oklch(41.5% 0.138 291.4)
- #4E5000
#4E5000
oklch(41.6% 0.092 111.4)
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 #4F388F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.018
- Blueberry #464196 ΔE 0.027
- Rebecca Purple #663399 ΔE 0.046
- Twilight #4E518B ΔE 0.067
- Cobalt #1E488F ΔE 0.072
- Chrysanthemum #560BAD ΔE 0.079
- Imperial Purple #480CA8 ΔE 0.080
- Sapphire #2138AB ΔE 0.081
Use #4F388F 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.