#4C2173
Closest named color: Royal Purple (#4B006E). oklch(35.4% 0.135 304.3), rgb(76, 33, 115).
Aa
White text reads best on this color (11.84:1).
About this color
#4C2173 is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.135 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.046 away. White text reads best on it, at 11.84:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.77:1 |
| White text | 11.84:1 |
Values
| HEX | #4C2173 |
| RGB | rgb(76, 33, 115) |
| HSL | hsl(271, 55%, 29%) |
| OKLCH | oklch(35.4% 0.135 304.3) |
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 #4C2173 | 11.84:1 | AAA | Lc -100.2 | Preferred for body text |
| Black text on #4C2173 | 1.77:1 | Fails | Lc 7.3 | Not readable |
| #4C2173 text on white | 11.84:1 | AAA | Lc 96.6 | Preferred for body text |
| #4C2173 text on black | 1.77:1 | 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
#F7F3FD
oklch(97% 0.014 304.1)
-
Step 100
100
#EEE5FA
oklch(93.5% 0.03 305.1)
-
Step 200
200
#E1D1F8
oklch(88.6% 0.056 303.9)
-
Step 300
300
#CFB0F6
oklch(80.8% 0.102 304.5)
-
Step 400
400
#B784F1
oklch(70.7% 0.161 304.2)
-
Step 500
500
#A65FEC
oklch(63% 0.207 304.3)
-
Step 600
600
#923FDA
oklch(55.6% 0.225 304.4)
-
Step 700
700
#7D2FBE
oklch(49.2% 0.21 304.4)
-
Step 800
800
#652999
oklch(42.6% 0.173 304.4)
-
Step 900
900 (this color)
#4C2173
oklch(35.4% 0.135 304.3)
-
Step 950
950
#301947
oklch(27% 0.084 304.4)
#4C2173 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) | #003675 | 0.105 |
| Deuteranopia (no green cones) | #023771 | 0.105 |
| Tritanopia (no blue cones) | #453447 | 0.098 |
| Achromatopsia (no color) | #373737 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C2173
#4C2173
oklch(35.4% 0.135 304.3)
- #324300
#324300
oklch(35.5% 0.088 124.3)
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 #4C2173, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.046
- Indigo #4B0082 ΔE 0.047
- Grape Purple #5D1451 ΔE 0.072
- Dark Slate Blue #483D8B ΔE 0.074
- Plum Purple #4E0550 ΔE 0.074
- Deep Violet #490648 ΔE 0.086
- Rebecca Purple #663399 ΔE 0.090
- Blueberry #464196 ΔE 0.091
Use #4C2173 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.