#4F2F99
Closest named color: Dark Slate Blue (#483D8B). oklch(40.9% 0.163 291.4), rgb(79, 47, 153).
Aa
White text reads best on this color (9.54:1).
About this color
#4F2F99 is a dark, vivid purple. In OKLCH its lightness is 41%, its chroma 0.163 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 0.041 away. White text reads best on it, at 9.54:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | vivid (0.163) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.19:1 |
| White text | 9.54:1 |
Values
| HEX | #4F2F99 |
| RGB | rgb(79, 47, 153) |
| HSL | hsl(258, 53%, 39%) |
| OKLCH | oklch(40.9% 0.163 291.4) |
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 #4F2F99 | 9.54:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #4F2F99 | 2.19:1 | Fails | Lc 12.4 | Not readable |
| #4F2F99 text on white | 9.54:1 | AAA | Lc 91.5 | Preferred for body text |
| #4F2F99 text on black | 2.19:1 | Fails | Lc -10.9 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E9E7FB
oklch(93.5% 0.027 290.5)
-
Step 200
200
#D9D4FA
oklch(88.6% 0.052 291.3)
-
Step 300
300
#C1B6FA
oklch(80.9% 0.095 291.5)
-
Step 400
400
#A38DF7
oklch(70.7% 0.152 291.6)
-
Step 500
500
#8E6CF3
oklch(63.1% 0.194 291.4)
-
Step 600
600
#7A4FE2
oklch(55.6% 0.211 291.4)
-
Step 700
700
#673EC4
oklch(49% 0.197 291.5)
-
Step 800
800 (this color)
#4F2F99
oklch(40.9% 0.163 291.4)
-
Step 900
900
#45307E
oklch(37.8% 0.126 291.6)
-
Step 950
950
#281D4A
oklch(27.1% 0.08 291.4)
#4F2F99 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) | #00479C | 0.092 |
| Deuteranopia (no green cones) | #004397 | 0.090 |
| Tritanopia (no blue cones) | #384960 | 0.129 |
| Achromatopsia (no color) | #454545 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F2F99
#4F2F99
oklch(40.9% 0.163 291.4)
- #4C4E00
#4C4E00
oklch(40.8% 0.09 111.5)
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 #4F2F99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.041
- Blueberry #464196 ΔE 0.042
- Rebecca Purple #663399 ΔE 0.046
- Chrysanthemum #560BAD ΔE 0.053
- Imperial Purple #480CA8 ΔE 0.055
- Indigo Blue #3A18B1 ΔE 0.068
- Sapphire #2138AB ΔE 0.074
- Indigo #4B0082 ΔE 0.078
Use #4F2F99 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.