#4B2587
Closest named color: Indigo (#4B0082). oklch(37.5% 0.153 295.8), rgb(75, 37, 135).
Aa
White text reads best on this color (10.97:1).
About this color
#4B2587 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.153 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.048 away. White text reads best on it, at 10.97:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.153) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.91:1 |
| White text | 10.97:1 |
Values
| HEX | #4B2587 |
| RGB | rgb(75, 37, 135) |
| HSL | hsl(263, 57%, 34%) |
| OKLCH | oklch(37.5% 0.153 295.8) |
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 #4B2587 | 10.97:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #4B2587 | 1.91:1 | Fails | Lc 9.2 | Not readable |
| #4B2587 text on white | 10.97:1 | AAA | Lc 94.7 | Preferred for body text |
| #4B2587 text on black | 1.91:1 | Fails | Lc -7.9 | 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 900.
-
Step 50
50
#F6F4FF
oklch(97.2% 0.015 294.5)
-
Step 100
100
#EBE6FE
oklch(93.6% 0.033 295.3)
-
Step 200
200
#DCD1FF
oklch(88.4% 0.064 296)
-
Step 300
300
#C6B2FF
oklch(80.8% 0.109 295.8)
-
Step 400
400
#AB86FF
oklch(70.7% 0.173 295.7)
-
Step 500
500
#9960FF
oklch(63.1% 0.225 295.8)
-
Step 600
600
#8738F3
oklch(55.6% 0.255 296)
-
Step 700
700
#7327D4
oklch(49.2% 0.237 296)
-
Step 800
800
#5D24AB
oklch(42.7% 0.197 295.9)
-
Step 900
900 (this color)
#4B2587
oklch(37.5% 0.153 295.8)
-
Step 950
950
#2C184F
oklch(27% 0.096 296.1)
#4B2587 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) | #003D8A | 0.096 |
| Deuteranopia (no green cones) | #003B85 | 0.096 |
| Tritanopia (no blue cones) | #3B3E53 | 0.119 |
| Achromatopsia (no color) | #3C3C3C | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B2587
#4B2587
oklch(37.5% 0.153 295.8)
- #3F4600
#3F4600
oklch(37.5% 0.086 116.1)
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 #4B2587, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.048
- Dark Slate Blue #483D8B ΔE 0.054
- Imperial Purple #480CA8 ΔE 0.061
- Blueberry #464196 ΔE 0.067
- Chrysanthemum #560BAD ΔE 0.068
- Royal Purple #4B006E ΔE 0.068
- Rebecca Purple #663399 ΔE 0.069
- Indigo Blue #3A18B1 ΔE 0.080
Use #4B2587 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.