#4F368C
Closest named color: Dark Slate Blue (#483D8B). oklch(40.9% 0.137 292.8), rgb(79, 54, 140).
Aa
White text reads best on this color (9.37:1).
About this color
#4F368C is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.137 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.020 away. White text reads best on it, at 9.37:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.23:1 |
| White text | 9.37:1 |
Values
| HEX | #4F368C |
| RGB | rgb(79, 54, 140) |
| HSL | hsl(257, 44%, 38%) |
| OKLCH | oklch(40.9% 0.137 292.8) |
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 #4F368C | 9.37:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #4F368C | 2.23:1 | Fails | Lc 12.6 | Not readable |
| #4F368C text on white | 9.37:1 | AAA | Lc 91.3 | Preferred for body text |
| #4F368C text on black | 2.23:1 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#D9D4F5
oklch(88.4% 0.045 292.4)
-
Step 300
300
#C2B8F0
oklch(81% 0.079 292.7)
-
Step 400
400
#A491E9
oklch(70.8% 0.127 292.8)
-
Step 500
500
#8F72E2
oklch(63.1% 0.164 293)
-
Step 600
600
#7A58D0
oklch(55.7% 0.177 292.8)
-
Step 700
700
#6747B4
oklch(49.1% 0.165 292.8)
-
Step 800
800 (this color)
#4F368C
oklch(40.9% 0.137 292.8)
-
Step 900
900
#453474
oklch(37.8% 0.106 292.9)
-
Step 950
950
#281F44
oklch(27% 0.067 292.5)
#4F368C 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) | #00488F | 0.088 |
| Deuteranopia (no green cones) | #02458A | 0.087 |
| Tritanopia (no blue cones) | #3E495B | 0.110 |
| Achromatopsia (no color) | #464646 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F368C
#4F368C
oklch(40.9% 0.137 292.8)
- #4B4F00
#4B4F00
oklch(41% 0.091 113.1)
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 #4F368C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.020
- Blueberry #464196 ΔE 0.032
- Rebecca Purple #663399 ΔE 0.048
- Twilight #4E518B ΔE 0.071
- Cobalt #1E488F ΔE 0.074
- Chrysanthemum #560BAD ΔE 0.079
- Imperial Purple #480CA8 ΔE 0.079
- Sapphire #2138AB ΔE 0.084
Use #4F368C 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.