#4B3089
Closest named color: Dark Slate Blue (#483D8B). oklch(39.3% 0.141 292.7), rgb(75, 48, 137).
Aa
White text reads best on this color (10.08:1).
About this color
#4B3089 is a dark, vivid purple. In OKLCH its lightness is 39%, its chroma 0.141 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 0.031 away. White text reads best on it, at 10.08:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.08:1 |
| White text | 10.08:1 |
Values
| HEX | #4B3089 |
| RGB | rgb(75, 48, 137) |
| HSL | hsl(258, 48%, 36%) |
| OKLCH | oklch(39.3% 0.141 292.7) |
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 #4B3089 | 10.08:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #4B3089 | 2.08:1 | Fails | Lc 11.0 | Not readable |
| #4B3089 text on white | 10.08:1 | AAA | Lc 93.0 | Preferred for body text |
| #4B3089 text on black | 2.08:1 | Fails | Lc -9.5 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#EAE7FD
oklch(93.7% 0.03 292.1)
-
Step 200
200
#DAD3FD
oklch(88.6% 0.058 292.8)
-
Step 300
300
#C2B4FF
oklch(80.9% 0.105 292.4)
-
Step 400
400
#A689FF
oklch(70.7% 0.169 292.9)
-
Step 500
500
#9265FE
oklch(63.1% 0.217 292.6)
-
Step 600
600
#7E45ED
oklch(55.6% 0.235 292.6)
-
Step 700
700
#6B34CE
oklch(49% 0.219 292.7)
-
Step 800
800
#572EA7
oklch(42.8% 0.181 292.5)
-
Step 900
900 (this color)
#4B3089
oklch(39.3% 0.141 292.7)
-
Step 950
950
#291B4D
oklch(27% 0.088 292.4)
#4B3089 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) | #00438C | 0.087 |
| Deuteranopia (no green cones) | #004087 | 0.086 |
| Tritanopia (no blue cones) | #394558 | 0.113 |
| Achromatopsia (no color) | #424242 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B3089
#4B3089
oklch(39.3% 0.141 292.7)
- #474A00
#474A00
oklch(39.3% 0.087 112.4)
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 #4B3089, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.031
- Blueberry #464196 ΔE 0.045
- Rebecca Purple #663399 ΔE 0.058
- Imperial Purple #480CA8 ΔE 0.070
- Indigo #4B0082 ΔE 0.071
- Chrysanthemum #560BAD ΔE 0.075
- Cobalt #1E488F ΔE 0.079
- Sapphire #2138AB ΔE 0.083
Use #4B3089 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.