#4C237B
Closest named color: Indigo (#4B0082). oklch(36.3% 0.142 300.8), rgb(76, 35, 123).
Aa
White text reads best on this color (11.45:1).
About this color
#4C237B is a dark, vivid purple. In OKLCH its lightness is 36%, its chroma 0.142 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.045 away. White text reads best on it, at 11.45:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | vivid (0.142) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.83:1 |
| White text | 11.45:1 |
Values
| HEX | #4C237B |
| RGB | rgb(76, 35, 123) |
| HSL | hsl(268, 56%, 31%) |
| OKLCH | oklch(36.3% 0.142 300.8) |
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 #4C237B | 11.45:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #4C237B | 1.83:1 | Fails | Lc 8.1 | Not readable |
| #4C237B text on white | 11.45:1 | AAA | Lc 95.8 | Preferred for body text |
| #4C237B text on black | 1.83:1 | 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
#EDE6FC
oklch(93.7% 0.03 300.3)
-
Step 200
200
#DFD1FB
oklch(88.5% 0.059 300.4)
-
Step 300
300
#CCB1FB
oklch(81% 0.106 300.8)
-
Step 400
400
#B384F9
oklch(70.7% 0.17 300.7)
-
Step 500
500
#A25EF5
oklch(63.1% 0.218 301.1)
-
Step 600
600
#8E3DE4
oklch(55.6% 0.236 300.9)
-
Step 700
700
#792CC6
oklch(49.1% 0.22 301)
-
Step 800
800
#6228A0
oklch(42.7% 0.181 300.9)
-
Step 900
900 (this color)
#4C237B
oklch(36.3% 0.142 300.8)
-
Step 950
950
#2E184A
oklch(26.8% 0.09 300.8)
#4C237B 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) | #00397E | 0.101 |
| Deuteranopia (no green cones) | #003979 | 0.102 |
| Tritanopia (no blue cones) | #42384C | 0.106 |
| Achromatopsia (no color) | #3A3A3A | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C237B
#4C237B
oklch(36.3% 0.142 300.8)
- #384400
#384400
oklch(36.3% 0.086 120.4)
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 #4C237B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.045
- Royal Purple #4B006E ΔE 0.054
- Dark Slate Blue #483D8B ΔE 0.064
- Rebecca Purple #663399 ΔE 0.079
- Imperial Purple #480CA8 ΔE 0.080
- Blueberry #464196 ΔE 0.080
- Grape Purple #5D1451 ΔE 0.084
- Chrysanthemum #560BAD ΔE 0.086
Use #4C237B 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.