#4B2378
Closest named color: Indigo (#4B0082). oklch(36% 0.138 301.3), rgb(75, 35, 120).
Aa
White text reads best on this color (11.59:1).
About this color
#4B2378 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.138 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.046 away. White text reads best on it, at 11.59:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.81:1 |
| White text | 11.59:1 |
Values
| HEX | #4B2378 |
| RGB | rgb(75, 35, 120) |
| HSL | hsl(268, 55%, 30%) |
| OKLCH | oklch(36% 0.138 301.3) |
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 #4B2378 | 11.59:1 | AAA | Lc -99.8 | Preferred for body text |
| Black text on #4B2378 | 1.81:1 | Fails | Lc 7.8 | Not readable |
| #4B2378 text on white | 11.59:1 | AAA | Lc 96.1 | Preferred for body text |
| #4B2378 text on black | 1.81:1 | 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
#F7F3FE
oklch(97% 0.015 302.6)
-
Step 100
100
#EDE6FB
oklch(93.7% 0.029 301)
-
Step 200
200
#DFD1FA
oklch(88.5% 0.058 300.8)
-
Step 300
300
#CCB1F9
oklch(80.9% 0.103 301.3)
-
Step 400
400
#B385F6
oklch(70.7% 0.165 301.1)
-
Step 500
500
#A260F2
oklch(63.1% 0.211 301.4)
-
Step 600
600
#8E3FE1
oklch(55.6% 0.231 301.4)
-
Step 700
700
#792FC3
oklch(49.1% 0.214 301.5)
-
Step 800
800
#62299E
oklch(42.7% 0.178 301.3)
-
Step 900
900 (this color)
#4B2378
oklch(36% 0.138 301.3)
-
Step 950
950
#2E1949
oklch(26.9% 0.086 300.9)
#4B2378 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) | #00387B | 0.100 |
| Deuteranopia (no green cones) | #003876 | 0.101 |
| Tritanopia (no blue cones) | #41374A | 0.104 |
| Achromatopsia (no color) | #393939 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B2378
#4B2378
oklch(36% 0.138 301.3)
- #364300
#364300
oklch(35.8% 0.086 121.3)
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 #4B2378, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.046
- Royal Purple #4B006E ΔE 0.052
- Dark Slate Blue #483D8B ΔE 0.066
- Grape Purple #5D1451 ΔE 0.081
- Blueberry #464196 ΔE 0.083
- Plum Purple #4E0550 ΔE 0.083
- Rebecca Purple #663399 ΔE 0.084
- Imperial Purple #480CA8 ΔE 0.084
Use #4B2378 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.