#4B2975
Closest named color: Dark Slate Blue (#483D8B). oklch(36.6% 0.126 301), rgb(75, 41, 117).
Aa
White text reads best on this color (11.21:1).
About this color
#4B2975 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.126 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.058 away. White text reads best on it, at 11.21:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.87:1 |
| White text | 11.21:1 |
Values
| HEX | #4B2975 |
| RGB | rgb(75, 41, 117) |
| HSL | hsl(267, 48%, 31%) |
| OKLCH | oklch(36.6% 0.126 301) |
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 #4B2975 | 11.21:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #4B2975 | 1.87:1 | Fails | Lc 8.4 | Not readable |
| #4B2975 text on white | 11.21:1 | AAA | Lc 95.5 | Preferred for body text |
| #4B2975 text on black | 1.87:1 | Fails | Lc 0.0 | 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 900.
-
Step 50
50
#F7F4FD
oklch(97.2% 0.012 301.3)
-
Step 100
100
#EDE6FA
oklch(93.6% 0.028 301.7)
-
Step 200
200
#DFD2F7
oklch(88.6% 0.052 301.3)
-
Step 300
300
#CBB3F4
oklch(81% 0.093 301.3)
-
Step 400
400
#B188EF
oklch(70.7% 0.151 301)
-
Step 500
500
#9F66E9
oklch(63.1% 0.192 301.1)
-
Step 600
600
#8A48D7
oklch(55.5% 0.209 300.9)
-
Step 700
700
#7638BB
oklch(49.1% 0.195 301.1)
-
Step 800
800
#603097
oklch(42.8% 0.161 301.2)
-
Step 900
900 (this color)
#4B2975
oklch(36.6% 0.126 301)
-
Step 950
950
#2D1B46
oklch(27% 0.078 300.6)
#4B2975 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) | #003B77 | 0.096 |
| Deuteranopia (no green cones) | #0E3B73 | 0.090 |
| Tritanopia (no blue cones) | #42394B | 0.093 |
| Achromatopsia (no color) | #3B3B3B | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B2975
#4B2975
oklch(36.6% 0.126 301)
- #384500
#384500
oklch(36.6% 0.088 121)
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 #4B2975, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.058
- Indigo #4B0082 ΔE 0.060
- Royal Purple #4B006E ΔE 0.063
- Blueberry #464196 ΔE 0.077
- Grape Purple #5D1451 ΔE 0.079
- Rebecca Purple #663399 ΔE 0.082
- Plum Purple #4E0550 ΔE 0.087
- Imperial Purple #480CA8 ΔE 0.093
Use #4B2975 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.