#4F2973
Closest named color: Dark Slate Blue (#483D8B). oklch(37% 0.124 304.7), rgb(79, 41, 115).
Aa
White text reads best on this color (11.06:1).
About this color
#4F2973 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.124 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.060 away. White text reads best on it, at 11.06:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.124) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.89:1 |
| White text | 11.06:1 |
Values
| HEX | #4F2973 |
| RGB | rgb(79, 41, 115) |
| HSL | hsl(271, 47%, 31%) |
| OKLCH | oklch(37% 0.124 304.7) |
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 #4F2973 | 11.06:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #4F2973 | 1.89:1 | Fails | Lc 8.7 | Not readable |
| #4F2973 text on white | 11.06:1 | AAA | Lc 95.2 | Preferred for body text |
| #4F2973 text on black | 1.89:1 | Fails | Lc -7.5 | 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 900.
-
Step 50
50
#F7F3FC
oklch(97% 0.013 306)
-
Step 100
100
#EEE6F9
oklch(93.7% 0.027 304.8)
-
Step 200
200
#E1D1F5
oklch(88.5% 0.052 305.4)
-
Step 300
300
#CEB2F1
oklch(80.9% 0.092 304.7)
-
Step 400
400
#B687EB
oklch(70.8% 0.149 304.6)
-
Step 500
500
#A464E4
oklch(63% 0.19 304.6)
-
Step 600
600
#9047D2
oklch(55.7% 0.206 304.6)
-
Step 700
700
#7B37B6
oklch(49.2% 0.192 304.8)
-
Step 800
800
#642F93
oklch(42.8% 0.159 304.9)
-
Step 900
900 (this color)
#4F2973
oklch(37% 0.124 304.7)
-
Step 950
950
#2F1A45
oklch(26.9% 0.079 304.1)
#4F2973 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) | #003B75 | 0.103 |
| Deuteranopia (no green cones) | #173C71 | 0.092 |
| Tritanopia (no blue cones) | #49384A | 0.089 |
| Achromatopsia (no color) | #3C3C3C | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F2973
#4F2973
oklch(37% 0.124 304.7)
- #354700
#354700
oklch(36.9% 0.092 124.4)
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 #4F2973, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.060
- Indigo #4B0082 ΔE 0.064
- Royal Purple #4B006E ΔE 0.064
- Grape Purple #5D1451 ΔE 0.072
- Blueberry #464196 ΔE 0.079
- Rebecca Purple #663399 ΔE 0.080
- Plum Purple #4E0550 ΔE 0.084
- Rich Purple #720058 ΔE 0.096
Use #4F2973 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.